ASTContext.cpp revision 29a7f3342c3c6dd15d914c61ae22246c36d51ce7
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, 38444be7366d0a1e172c0290a1ea54c1cb16b5947cDaniel Dunbar const 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(); 51369a3bd9979cf529eed529aa037de713c213e47dFariborz Jahanian ObjCSelRedefinitionType = QualType(); 521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (size_reserve > 0) Types.reserve(size_reserve); 53e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 5414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff InitBuiltinTypes(); 55e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 56e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 604b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 63b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 64b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::FoldingSet<ExtQuals>::iterator 660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall I = ExtQualNodes.begin(), E = ExtQualNodes.end(); 670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall while (I != E) 680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Deallocate(&*I++); 690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall { 72b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 73b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 74b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 75b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 76b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 77b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 78b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 79b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 80b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 81b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>::iterator 82b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar I = ObjCLayouts.begin(), E = ObjCLayouts.end(); 83b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 84b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 85b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 86b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 87b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 88b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 89ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 901ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 911ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNSEnd = NestedNameSpecifiers.end(); 931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS != NNSEnd; 941ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor /* Increment in loop */) 951ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 96ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 97ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 98ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 99ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 100b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 1042cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 1052cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 1062cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 1072cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 1117c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 112dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 1131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump#define TYPE(Name, Parent) 0, 114dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 115dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 116dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 117dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 118c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 121dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 124dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 125dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 126dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 127dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 128dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 129dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 130dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 131dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 132dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 1331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 134dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1352cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1362cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1372cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1382cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1392cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 143e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallvoid ASTContext::InitBuiltinType(CanQualType &R, BuiltinType::Kind K) { 1446b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BuiltinType *Ty = new (*this, TypeAlignment) BuiltinType(K); 145e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall R = CanQualType::CreateUnsafe(QualType(Ty, 0)); 1466b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Types.push_back(Ty); 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 15815b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 18064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1812df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1822df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1832df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1842df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1853a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1863a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1873a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1883a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 18964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 190f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 191f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char16Ty, BuiltinType::Char16); 192f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 193f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16Ty = getFromTargetType(Target.getChar16Type()); 194f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 195f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 196f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char32Ty, BuiltinType::Char32); 197f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 198f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32Ty = getFromTargetType(Target.getChar32Type()); 199f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2008e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 201898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 202898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 203898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 204898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 205898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 206898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 207898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 208898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 2098e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Placeholder type for C++0x auto declarations whose real type has 211e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 212e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 2131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2188e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2197e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 2201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 221de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // "Builtin" typedefs set by Sema::ActOnTranslationUnitScope(). 222de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = QualType(); 223de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = QualType(); 22413dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian ObjCSelTypedefType = QualType(); 2251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22613dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian // Builtin types for 'id', 'Class', and 'SEL'. 227de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); 228de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); 22913dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian InitBuiltinType(ObjCBuiltinSelTy, BuiltinType::ObjCSel); 23014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 231a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 2321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 23433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2356e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2366e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2376e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 240251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorMemberSpecializationInfo * 241663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas GregorASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) { 2427caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Var->isStaticDataMember() && "Not a static data member"); 243663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor llvm::DenseMap<const VarDecl *, MemberSpecializationInfo *>::iterator Pos 2447caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor = InstantiatedFromStaticDataMember.find(Var); 2457caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Pos == InstantiatedFromStaticDataMember.end()) 2467caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return 0; 2471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2487caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return Pos->second; 2497caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2507caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 252251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl, 253251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor TemplateSpecializationKind TSK) { 2547caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Inst->isStaticDataMember() && "Not a static data member"); 2557caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Tmpl->isStaticDataMember() && "Not a static data member"); 2567caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(!InstantiatedFromStaticDataMember[Inst] && 2577caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor "Already noted what static data member was instantiated from"); 258251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor InstantiatedFromStaticDataMember[Inst] 259251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor = new (*this) MemberSpecializationInfo(Tmpl, TSK); 2607caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2617caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2627ba107a1863ddfa1664555854f0d7bdb3c491c92John McCallNamedDecl * 263ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::getInstantiatedFromUsingDecl(UsingDecl *UUD) { 2647ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall llvm::DenseMap<UsingDecl *, NamedDecl *>::const_iterator Pos 265ed97649e9574b9d854fa4d6109c9333ae0993554John McCall = InstantiatedFromUsingDecl.find(UUD); 266ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (Pos == InstantiatedFromUsingDecl.end()) 2670d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return 0; 2681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2690d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return Pos->second; 2700d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2710d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 2720d8df780aef1acda5962347a32591efc629b6748Anders Carlssonvoid 273ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::setInstantiatedFromUsingDecl(UsingDecl *Inst, NamedDecl *Pattern) { 274ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert((isa<UsingDecl>(Pattern) || 275ed97649e9574b9d854fa4d6109c9333ae0993554John McCall isa<UnresolvedUsingValueDecl>(Pattern) || 276ed97649e9574b9d854fa4d6109c9333ae0993554John McCall isa<UnresolvedUsingTypenameDecl>(Pattern)) && 277ed97649e9574b9d854fa4d6109c9333ae0993554John McCall "pattern decl is not a using decl"); 278ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert(!InstantiatedFromUsingDecl[Inst] && "pattern already exists"); 279ed97649e9574b9d854fa4d6109c9333ae0993554John McCall InstantiatedFromUsingDecl[Inst] = Pattern; 280ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 281ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 282ed97649e9574b9d854fa4d6109c9333ae0993554John McCallUsingShadowDecl * 283ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::getInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst) { 284ed97649e9574b9d854fa4d6109c9333ae0993554John McCall llvm::DenseMap<UsingShadowDecl*, UsingShadowDecl*>::const_iterator Pos 285ed97649e9574b9d854fa4d6109c9333ae0993554John McCall = InstantiatedFromUsingShadowDecl.find(Inst); 286ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (Pos == InstantiatedFromUsingShadowDecl.end()) 287ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return 0; 288ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 289ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return Pos->second; 290ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 291ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 292ed97649e9574b9d854fa4d6109c9333ae0993554John McCallvoid 293ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::setInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst, 294ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UsingShadowDecl *Pattern) { 295ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert(!InstantiatedFromUsingShadowDecl[Inst] && "pattern already exists"); 296ed97649e9574b9d854fa4d6109c9333ae0993554John McCall InstantiatedFromUsingShadowDecl[Inst] = Pattern; 2970d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2980d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 299d8b285fee4471f393da8ee30f552ceacdc362afaAnders CarlssonFieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { 300d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos 301d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson = InstantiatedFromUnnamedFieldDecl.find(Field); 302d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson if (Pos == InstantiatedFromUnnamedFieldDecl.end()) 303d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return 0; 3041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 305d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return Pos->second; 306d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 307d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 308d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlssonvoid ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, 309d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson FieldDecl *Tmpl) { 310d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed"); 311d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Tmpl->getDeclName() && "Template field decl is not unnamed"); 312d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!InstantiatedFromUnnamedFieldDecl[Inst] && 313d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson "Already noted what unnamed field was instantiated from"); 3141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 315d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; 316d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 317d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 3182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregornamespace { 3191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump class BeforeInTranslationUnit 3202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor : std::binary_function<SourceRange, SourceRange, bool> { 3212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceManager *SourceMgr; 3221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor public: 3242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 3251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool operator()(SourceRange X, SourceRange Y) { 3272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 3282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor }; 3302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 3312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Determine whether the given comment is a Doxygen-style comment. 3332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Start the start of the comment text. 3352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param End the end of the comment text. 3372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Member whether we want to check whether this is a member comment 3392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// (which requires a < after the Doxygen-comment delimiter). Otherwise, 3402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// we only return true when we find a non-member comment. 3411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic bool 3421eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpisDoxygenComment(SourceManager &SourceMgr, SourceRange Comment, 3432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool Member = false) { 3441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *BufferStart 3452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(SourceMgr.getFileID(Comment.getBegin())).first; 3462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *Start = BufferStart + SourceMgr.getFileOffset(Comment.getBegin()); 3472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char* End = BufferStart + SourceMgr.getFileOffset(Comment.getEnd()); 3481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (End - Start < 4) 3502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor assert(Start[0] == '/' && "Not a comment?"); 3532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '*' && !(Start[2] == '!' || Start[2] == '*')) 3542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '/' && !(Start[2] == '!' || Start[2] == '/')) 3562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return (Start[3] == '<') == Member; 3592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 3602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Retrieve the comment associated with the given declaration, if 3621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// it has one. 3632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorconst char *ASTContext::getCommentForDecl(const Decl *D) { 3642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!D) 3652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check whether we have cached a comment string for this declaration 3682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // already. 3691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::DenseMap<const Decl *, std::string>::iterator Pos 3702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = DeclComments.find(D); 3712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Pos != DeclComments.end()) 3722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Pos->second.c_str(); 3732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If we have an external AST source and have not yet loaded comments from 3752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // that source, do so now. 3762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (ExternalSource && !LoadedExternalComments) { 3772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange> LoadedComments; 3782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExternalSource->ReadComments(LoadedComments); 3791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!LoadedComments.empty()) 3812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Comments.insert(Comments.begin(), LoadedComments.begin(), 3822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedComments.end()); 3831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments = true; 3852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If there are no comments anywhere, we won't find anything. 3882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Comments.empty()) 3892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the declaration doesn't map directly to a location in a file, we 3922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // can't find the comment. 3932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceLocation DeclStartLoc = D->getLocStart(); 3942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartLoc.isInvalid() || !DeclStartLoc.isFileID()) 3952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Find the comment that occurs just before this declaration. 3982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator LastComment 3991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = std::lower_bound(Comments.begin(), Comments.end(), 4002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceRange(DeclStartLoc), 4012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor BeforeInTranslationUnit(&SourceMgr)); 4021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the location for the start of the declaration and find the 4042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // beginning of the file buffer. 4051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<FileID, unsigned> DeclStartDecomp 4062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(DeclStartLoc); 4071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *FileBufferStart 4082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(DeclStartDecomp.first).first; 4091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // First check whether we have a comment for a member. 4112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment != Comments.end() && 4122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor !isa<TagDecl>(D) && !isa<NamespaceDecl>(D) && 4132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor isDoxygenComment(SourceMgr, *LastComment, true)) { 4142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 4152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 4162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first == LastCommentEndDecomp.first && 4172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second) 4181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump == SourceMgr.getLineNumber(LastCommentEndDecomp.first, 4192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second)) { 4202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The Doxygen member comment comes after the declaration starts and 4212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is on the same line and in the same file as the declaration. This 4222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is the comment we want. 4232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 4241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 4251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 4262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 4272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 4282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment == Comments.begin()) 4322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --LastComment; 4342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the end of the comment. 4362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 4372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 4381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment and the declaration aren't in the same file, then they 4402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // aren't related. 4412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first != LastCommentEndDecomp.first) 4422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check that we actually have a Doxygen comment. 4452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *LastComment)) 4462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Compute the starting line for the declaration and for the end of the 4492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // comment (this is expensive). 4501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned DeclStartLine 4512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second); 4522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned CommentEndLine 4531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = SourceMgr.getLineNumber(LastCommentEndDecomp.first, 4542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second); 4551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment does not end on the line prior to the declaration, then 4572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // the comment is not associated with the declaration at all. 4582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (CommentEndLine + 1 != DeclStartLine) 4592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // We have a comment, but there may be more comments on the previous lines. 4622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Keep looking so long as the comments are still Doxygen comments and are 4632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // still adjacent. 4641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ExpectedLine 4652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(LastComment->getBegin()) - 1; 4662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator FirstComment = LastComment; 4672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != Comments.begin()) { 4682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Look at the previous comment 4692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --FirstComment; 4702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> Decomp 4712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this previous comment is in a different file, we're done. 4742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Decomp.first != DeclStartDecomp.first) { 4752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this comment is not a Doxygen comment, we're done. 4802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *FirstComment)) { 4812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the line number is not what we expected, we're done. 4862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned Line = SourceMgr.getLineNumber(Decomp.first, Decomp.second); 4872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Line != ExpectedLine) { 4882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Set the next expected line number. 4931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExpectedLine 4942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(FirstComment->getBegin()) - 1; 4952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The iterator range [FirstComment, LastComment] contains all of the 4982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // BCPL comments that, together, are associated with this declaration. 4992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Form a single comment block string for this declaration that concatenates 5002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // all of these comments. 5012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 5022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != LastComment) { 5032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompStart 5042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getBegin()); 5052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompEnd 5062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 5072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + DecompStart.second, 5082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + DecompEnd.second + 1); 5092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 5102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 5111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Append the last comment line. 5131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 5141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 5152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 5162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 5172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 5182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 519464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 520464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 521464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 522a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 523b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 524b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 525b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 526183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const BuiltinType *BT = T->getAs<BuiltinType>(); 527b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 528b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 529b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 530b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 531b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 532b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 533b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 534b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 535b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 536196efbf095d75180305a45f3033caa1003746604Mike Stump/// getDeclAlignInBytes - Return a conservative estimate of the alignment of the 537af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 538af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 5395d484e8cf710207010720589d89602233de61d01Sebastian Redl/// If @p RefAsPointee, references are treated like their underlying type 5405d484e8cf710207010720589d89602233de61d01Sebastian Redl/// (for alignof), else they're treated like pointers (for CodeGen). 5415d484e8cf710207010720589d89602233de61d01Sebastian Redlunsigned ASTContext::getDeclAlignInBytes(const Decl *D, bool RefAsPointee) { 542dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 543dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 54440b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 545bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Align = std::max(Align, AA->getMaxAlignment()); 546dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 547af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 548af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 5496217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType* RT = T->getAs<ReferenceType>()) { 5505d484e8cf710207010720589d89602233de61d01Sebastian Redl if (RefAsPointee) 5515d484e8cf710207010720589d89602233de61d01Sebastian Redl T = RT->getPointeeType(); 5525d484e8cf710207010720589d89602233de61d01Sebastian Redl else 5535d484e8cf710207010720589d89602233de61d01Sebastian Redl T = getPointerType(RT->getPointeeType()); 5545d484e8cf710207010720589d89602233de61d01Sebastian Redl } 5555d484e8cf710207010720589d89602233de61d01Sebastian Redl if (!T->isIncompleteType() && !T->isFunctionType()) { 5564cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 557dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 558dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 559dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 560dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 561dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 562af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 563dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 564dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 565af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 566b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 567a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 568a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 5690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// 5700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// FIXME: Pointers into different addr spaces could have different sizes and 5710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// alignment requirements: getPointerInfo should take an AddrSpace, this 5720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// should take a QualType, &c. 573d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 5741d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 5755e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 5765e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 577a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 57872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 57972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 58018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 58172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 58272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 58318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 58472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 58572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 5865d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 5875d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 58818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 58918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 59018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 59118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 59218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 59372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 594fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 59518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 59618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 59718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 59818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 599fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 6001d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 6011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 60298be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 6039e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 604030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 605030d8846c7e520330007087e949f621989876e3aChris Lattner break; 6065c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 607213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 608030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 6099fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner const VectorType *VT = cast<VectorType>(T); 6109fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(VT->getElementType()); 6119fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = EltInfo.first*VT->getNumElements(); 6124bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 6136fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 6146fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 6159fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner if (VT->getNumElements() & (VT->getNumElements()-1)) { 6169fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Align = llvm::NextPowerOf2(Align); 6179fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = llvm::RoundUpToAlignment(Width, Align); 6189fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner } 619030d8846c7e520330007087e949f621989876e3aChris Lattner break; 620030d8846c7e520330007087e949f621989876e3aChris Lattner } 6215d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 6229e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 623a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 624692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 625d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 62618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 62718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 62818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 62918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 63018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 6316f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 6329e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 6339e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 6346f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 635692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 636692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 637692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 6386f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 6399e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 6409e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 6416f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 64264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 64364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 64464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 64564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 646f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char16: 647f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar16Width(); 648f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar16Align(); 649f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 650f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char32: 651f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar32Width(); 652f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar32Align(); 653f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 654692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 6556f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 6569e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 6579e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 6586f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 659692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 6606f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 6619e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 6629e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 6636f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 664692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 6656f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 6669e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 6679e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 6686f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 669692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 6706f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 6719e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 6729e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 6736f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 674ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 675ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 676ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 677ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 678ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 6796f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 6809e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 6819e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 6826f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6836f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 6845426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 6855426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 6866f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6876f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 6889e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 6899e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 6906f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6916e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 6926e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 6936e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 6941590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 695a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 696bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 697f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case Type::FixedWidthInt: 698f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: This isn't precisely correct; the width/alignment should depend 699f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // on the available types for the target 700f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Width = cast<FixedWidthIntType>(T)->getWidth(); 701736166b38235cf6d0ffb67638960d95fb2afcbd6Chris Lattner Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 702f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Align = Width; 703f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman break; 704d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 7055426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 706f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 7076f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 708485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 709485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 710485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 711485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 712485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 713485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 7145d484e8cf710207010720589d89602233de61d01Sebastian Redl case Type::LValueReference: 7155d484e8cf710207010720589d89602233de61d01Sebastian Redl case Type::RValueReference: { 7165d484e8cf710207010720589d89602233de61d01Sebastian Redl // alignof and sizeof should never enter this code path here, so we go 7175d484e8cf710207010720589d89602233de61d01Sebastian Redl // the pointer route. 7185d484e8cf710207010720589d89602233de61d01Sebastian Redl unsigned AS = cast<ReferenceType>(T)->getPointeeType().getAddressSpace(); 7195d484e8cf710207010720589d89602233de61d01Sebastian Redl Width = Target.getPointerWidth(AS); 7205d484e8cf710207010720589d89602233de61d01Sebastian Redl Align = Target.getPointerAlign(AS); 7215d484e8cf710207010720589d89602233de61d01Sebastian Redl break; 7225d484e8cf710207010720589d89602233de61d01Sebastian Redl } 723f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 724f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 7255426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 726f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 727f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 728f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 729f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 730f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 7311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> PtrDiffInfo = 7321cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 7331cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 734f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 735f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 7361cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 7371cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 738f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 7395d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 7405d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 7415d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 7421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> EltInfo = 74398be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 7449e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 7455d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 7465d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 7475d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 74844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 7491d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 75044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 75144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 75244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 75344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 75444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 75572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 75672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 7571d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 7581d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 7591d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 7608389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 7618389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 7628389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 7638389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 7641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7651d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 7667176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 7677176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 7681d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 7697176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 7707176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 7717176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 772dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 773a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 7747532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 7759fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::SubstTemplateTypeParm: 77649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return getTypeInfo(cast<SubstTemplateTypeParmType>(T)-> 77749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall getReplacementType().getTypePtr()); 77849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 7799fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::Elaborated: 7809fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner return getTypeInfo(cast<ElaboratedType>(T)->getUnderlyingType() 7819fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner .getTypePtr()); 7827da2431c23ef1ee8acb114e39692246e1801afc2John McCall 78318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 78418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 78540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 786bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Align = std::max(Aligned->getMaxAlignment(), 787bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt getTypeAlign(Typedef->getUnderlyingType().getTypePtr())); 78818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 78918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 79018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 7917532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 7927176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 79318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 79418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 79518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 79618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 79718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 79818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 79918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 80018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 801395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 802395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 803395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 804395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 80518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 80618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 8071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 80818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 8091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(getCanonicalType(T) != T && 81018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 81118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 81218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 81318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 81418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 81518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 8161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 817464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 8189e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 819a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 820a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 82134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 82234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 82334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 82434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 82534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 82634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 8271eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 8281eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 829183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType* CT = T->getAs<ComplexType>()) 8301eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 8311eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 8321eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 8331eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 8341eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 83534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 83634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 83734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 838a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 839a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 840a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 841a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 842a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 843f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 844a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 845a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 846a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 847a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 848a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 849a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 850a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 851a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 852a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 853a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 854a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 855a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 8568e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 8578e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 8588e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 8598e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 8608e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 8618e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian bool CollectSynthesized) { 8628e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 8638e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 8648e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 8658e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8668e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (CollectSynthesized) 8678e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian CollectSynthesizedIvars(OI, Ivars); 8688e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8698e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8709820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 8719820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 87217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 87317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8749820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8759820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8779820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 8789820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8799820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8809820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 8819820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8829820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8839820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// CollectSynthesizedIvars - 8849820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// This routine collect synthesized ivars for the designated class. 8859820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 8869820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 8879820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 88817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 88917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 8909820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8919820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8929820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8939820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 8949820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 8959820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 8969820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 8979820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 8989820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 8999820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 9009820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 9019820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 902e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// CollectInheritedProtocols - Collect all protocols in current class and 903e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// those inherited by it. 904e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid ASTContext::CollectInheritedProtocols(const Decl *CDecl, 905e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVectorImpl<ObjCProtocolDecl*> &Protocols) { 906e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCInterfaceDecl *OI = dyn_cast<ObjCInterfaceDecl>(CDecl)) { 907e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 908e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 909e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 910e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Protocols.push_back(Proto); 911e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 912e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 913e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 914e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 915e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 916e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian // Categories of this Interface. 917e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (const ObjCCategoryDecl *CDeclChain = OI->getCategoryList(); 918e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CDeclChain; CDeclChain = CDeclChain->getNextClassCategory()) 919e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(CDeclChain, Protocols); 920e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (ObjCInterfaceDecl *SD = OI->getSuperClass()) 921e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian while (SD) { 922e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(SD, Protocols); 923e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian SD = SD->getSuperClass(); 924e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 925e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 926e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 927e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCCategoryDecl *OC = dyn_cast<ObjCCategoryDecl>(CDecl)) { 928e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OC->protocol_begin(), 929e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OC->protocol_end(); P != PE; ++P) { 930e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 931e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Protocols.push_back(Proto); 932e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 933e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 934e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 935e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 936e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 937e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 938e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCProtocolDecl *OP = dyn_cast<ObjCProtocolDecl>(CDecl)) { 939e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = OP->protocol_begin(), 940e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OP->protocol_end(); P != PE; ++P) { 941e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 942e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Protocols.push_back(Proto); 943e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 944e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 945e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 946e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 947e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 948e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 949e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 950e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 9518e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 9528e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 95317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 95417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 9558e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 9568e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 9578e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9588e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into nested protocols. 9598e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 9608e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->protocol_end(); P != E; ++P) 9618e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(*P); 9628e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 9638e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 9648e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) { 9668e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 96717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 96817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 9698e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 9708e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 9718e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 9728e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into interface's protocol list for properties declared 9738e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // in the protocol and whose ivars are synthesized. 9748e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 9758e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 9768e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ObjCProtocolDecl *PD = (*P); 9778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(PD); 9788e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 9798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 9808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 9818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9828a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCInterfaceDecl,or NULL if none exists. 9838a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { 9848a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 9858a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 9868a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 9878a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCImplementationDecl>(I->second); 9888a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 9898a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9908a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCCategoryDecl, or NULL if none exists. 9918a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { 9928a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 9938a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 9948a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 9958a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCCategoryImplDecl>(I->second); 9968a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 9978a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9988a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 9998a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCInterfaceDecl. 10008a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, 10018a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImplementationDecl *ImplD) { 10028a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(IFaceD && ImplD && "Passed null params"); 10038a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[IFaceD] = ImplD; 10048a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 10058a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCCategoryDecl. 10068a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, 10078a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCCategoryImplDecl *ImplD) { 10088a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(CatD && ImplD && "Passed null params"); 10098a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[CatD] = ImplD; 10108a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 10118a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 1012a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Allocate an uninitialized TypeSourceInfo. 1013b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 1014a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// The caller should initialize the memory held by TypeSourceInfo using 1015b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// the TypeLoc wrappers. 1016b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 1017b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \param T the type that will be the basis for type source info. This type 1018b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// should refer to how the declarator was written in source code, not to 1019b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// what type semantic analysis resolved the declarator to. 1020a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo *ASTContext::CreateTypeSourceInfo(QualType T, 1021109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall unsigned DataSize) { 1022109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall if (!DataSize) 1023109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall DataSize = TypeLoc::getFullDataSizeForType(T); 1024109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall else 1025109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall assert(DataSize == TypeLoc::getFullDataSizeForType(T) && 1026a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall "incorrect data size provided to CreateTypeSourceInfo!"); 1027109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall 1028a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 1029a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall (TypeSourceInfo*)BumpAlloc.Allocate(sizeof(TypeSourceInfo) + DataSize, 8); 1030a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (TInfo) TypeSourceInfo(T); 1031a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 1032b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis} 1033b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis 1034a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo *ASTContext::getTrivialTypeSourceInfo(QualType T, 1035a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall SourceLocation L) { 1036a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = CreateTypeSourceInfo(T); 1037a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall DI->getTypeLoc().initialize(L); 1038a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall return DI; 1039a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall} 1040a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall 1041b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 1042b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 1043b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 1044b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 1045b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 104644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 1047b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 1048b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 1049532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 1050532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 105144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 10521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCContainerDecl *Key = 1053d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 1054d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 1055d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 105644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 1057453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 1058453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 105929445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson unsigned FieldCount = D->ivar_size(); 10608e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned SynthCount = CountSynthesizedIvars(D); 10618e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian FieldCount += SynthCount; 1062d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 1063453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 1064453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 1065453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 10668e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 1067453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 1068453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 1069453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 10701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 107129445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D, Impl); 107229445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ObjCLayouts[Key] = NewEntry; 10731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 107444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 107544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 107644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 1077b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1078b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 1079b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 1080b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1081b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 1082b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1083b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 1084b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 1085b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1086b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 108788a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 1088464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 1089464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 109098be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 10914b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 10924b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 10934bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 1094464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 1095ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // Note that we can't save a reference to the entry because this function 1096ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // is recursive. 1097ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman const ASTRecordLayout *Entry = ASTRecordLayouts[D]; 1098464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 10994bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 11001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 110129445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D); 1102ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman ASTRecordLayouts[D] = NewEntry; 11031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11045d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 1105464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 1106464175bba1318bef7905122e9fda20cff926df78Chris Lattner 1107f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlssonconst CXXMethodDecl *ASTContext::getKeyFunction(const CXXRecordDecl *RD) { 1108f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson RD = cast<CXXRecordDecl>(RD->getDefinition(*this)); 1109f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson assert(RD && "Cannot get key function for forward declarations!"); 1110f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1111f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson const CXXMethodDecl *&Entry = KeyFunctions[RD]; 1112f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson if (!Entry) 1113f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson Entry = ASTRecordLayoutBuilder::ComputeKeyFunction(RD); 1114f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson else 1115f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson assert(Entry == ASTRecordLayoutBuilder::ComputeKeyFunction(RD) && 1116f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson "Key function changed!"); 1117f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1118f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson return Entry; 1119f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson} 1120f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1121a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1122a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 1123a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1124a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 11250953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getExtQualType(const Type *TypeNode, Qualifiers Quals) { 11260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned Fast = Quals.getFastQualifiers(); 11270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeFastQualifiers(); 11280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Check if we've already instantiated this type. 11300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::FoldingSetNodeID ID; 11310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQuals::Profile(ID, TypeNode, Quals); 11320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void *InsertPos = 0; 11330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ExtQuals *EQ = ExtQualNodes.FindNodeOrInsertPos(ID, InsertPos)) { 11340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(EQ->getQualifiers() == Quals); 11350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(EQ, Fast); 11360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 11370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 11380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11396b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtQuals *New = new (*this, TypeAlignment) ExtQuals(*this, TypeNode, Quals); 11400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQualNodes.InsertNode(New, InsertPos); 11410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(New, Fast); 11420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 11430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 11440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11450953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getVolatileType(QualType T) { 11460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanT = getCanonicalType(T); 11470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (CanT.isVolatileQualified()) return T; 11480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 11500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 11510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addVolatile(); 11520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 11540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 11550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1156f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 1157f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 1158f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 1159f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 1160b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 11610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 11620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 11630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 11640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 11651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an address space specified, it cannot get 11670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 11680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasAddressSpace() && 11690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot be in multiple addr spaces!"); 11700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addAddressSpace(AddressSpace); 11711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1173ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 1174ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1175b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 11760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr) { 1177d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 1178b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 1179d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 11801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11814027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 11826217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 118358f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff if (Pointee->isAnyPointerType()) { 11844027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 11854027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 11864027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 11874027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 11881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 11900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 11910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 11920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 11931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an ObjCGC specified, it cannot get 11950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 11960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasObjCGCAttr() && 11970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot have multiple ObjCGCs!"); 11980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addObjCGCAttr(GCAttr); 11991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1201d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1202a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 120343c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas GregorQualType ASTContext::getNoReturnType(QualType T, bool AddNoReturn) { 12040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType ResultType; 120543c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (const PointerType *Pointer = T->getAs<PointerType>()) { 120643c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor QualType Pointee = Pointer->getPointeeType(); 120743c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor ResultType = getNoReturnType(Pointee, AddNoReturn); 120843c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (ResultType == Pointee) 120943c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 121043c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor 12116dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType = getPointerType(ResultType); 121243c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else if (const BlockPointerType *BlockPointer 121343c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor = T->getAs<BlockPointerType>()) { 121443c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor QualType Pointee = BlockPointer->getPointeeType(); 121543c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor ResultType = getNoReturnType(Pointee, AddNoReturn); 121643c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (ResultType == Pointee) 121743c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 121843c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor 12196dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType = getBlockPointerType(ResultType); 122043c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else if (const FunctionType *F = T->getAs<FunctionType>()) { 122143c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (F->getNoReturnAttr() == AddNoReturn) 122243c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 122343c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor 122443c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (const FunctionNoProtoType *FNPT = dyn_cast<FunctionNoProtoType>(F)) { 122543c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor ResultType = getFunctionNoProtoType(FNPT->getResultType(), AddNoReturn); 12260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else { 122743c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor const FunctionProtoType *FPT = cast<FunctionProtoType>(F); 12280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType 122943c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor = getFunctionType(FPT->getResultType(), FPT->arg_type_begin(), 123043c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor FPT->getNumArgs(), FPT->isVariadic(), 123143c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor FPT->getTypeQuals(), 123243c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor FPT->hasExceptionSpec(), FPT->hasAnyExceptionSpec(), 123343c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor FPT->getNumExceptions(), FPT->exception_begin(), 123443c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor AddNoReturn); 12350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 123643c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else 123743c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 123843c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor 1239a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor return getQualifiedType(ResultType, T.getLocalQualifiers()); 12402455636163fdd18581d7fdae816433f886d88213Mike Stump} 12412455636163fdd18581d7fdae816433f886d88213Mike Stump 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 12485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 12491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 12525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 12531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 12555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1257467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1258f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 12591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1262f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12646b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ComplexType *New = new (*this, TypeAlignment) ComplexType(T, Canonical); 12655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 12675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1270f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 1271f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 1272f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 1273f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 1274f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 1275f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 1276f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 1277f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 12785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 12805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 12815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 12825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 12855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 12861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 12895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 12901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 12925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1294467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1295f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 12961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1299f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13016b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall PointerType *New = new (*this, TypeAlignment) PointerType(T, Canonical); 13025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 13045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getBlockPointerType - Return the uniqued reference to the type for 13085618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 13095618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1310296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1311296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 13125618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 13135618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 13145618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 13151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13165618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 13175618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 13185618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 13195618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 13201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the block pointee type isn't canonical, this won't be a canonical 13225618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 13235618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 1324467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 13255618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 13261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13275618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 13285618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 13295618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1330f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13315618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 13326b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BlockPointerType *New 13336b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) BlockPointerType(T, Canonical); 13345618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 13355618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 13365618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 13375618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 13385618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 13397c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 13407c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 134154e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType ASTContext::getLValueReferenceType(QualType T, bool SpelledAsLValue) { 13425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 13435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 13445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 134554e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, SpelledAsLValue); 13465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13487c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 13497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 13505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 13517c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 135254e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 135354e14c4db764c0636160d26c5bbf491637c83a76John McCall 13545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 13555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 13565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 135754e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!SpelledAsLValue || InnerRef || !T.isCanonical()) { 135854e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 135954e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getLValueReferenceType(getCanonicalType(PointeeType)); 13607c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 13627c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 13637c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 13647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13657c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 13667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13676b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall LValueReferenceType *New 136854e14c4db764c0636160d26c5bbf491637c83a76John McCall = new (*this, TypeAlignment) LValueReferenceType(T, Canonical, 136954e14c4db764c0636160d26c5bbf491637c83a76John McCall SpelledAsLValue); 13707c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 13717c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 137254e14c4db764c0636160d26c5bbf491637c83a76John McCall 13737c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 13747c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 13757c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13767c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 13777c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 13787c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 13797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 13807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 13817c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 138254e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, false); 13837c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13847c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 13857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 13867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 13877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 13887c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 138954e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 139054e14c4db764c0636160d26c5bbf491637c83a76John McCall 13917c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 13927c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 13937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 139454e14c4db764c0636160d26c5bbf491637c83a76John McCall if (InnerRef || !T.isCanonical()) { 139554e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 139654e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getRValueReferenceType(getCanonicalType(PointeeType)); 13977c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13997c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 14007c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1401f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14046b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall RValueReferenceType *New 14056b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); 14065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 14077c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 14085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 14095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1411f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1412f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 14131eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) { 1414f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1415f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1416f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1417f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1418f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1419f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1420f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1421f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1422f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1423f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1424f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1425f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1426f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 142787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor if (!T.isCanonical() || !Cls->isCanonicalUnqualified()) { 1428f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1429f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1430f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1431f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1432f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1433f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1434f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 14356b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall MemberPointerType *New 14366b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); 1437f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1438f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1439f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1440f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1441f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 14421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getConstantArrayType - Return the unique reference to the type for an 1443fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 14441eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getConstantArrayType(QualType EltTy, 144538aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1446c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1447c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1448923d56d436f750bc1f29db50e641078725558a1bSebastian Redl assert((EltTy->isDependentType() || 1449923d56d436f750bc1f29db50e641078725558a1bSebastian Redl EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && 1450587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1451587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 145238aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 145338aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 145438aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 145538aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 14561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 14580be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 14591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 14611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ConstantArrayType *ATP = 14627192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 14635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 14641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 14665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 14675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1468467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 14691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1470c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 14715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 14721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ConstantArrayType *NewIP = 14737192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1474f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14776b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType *New = new(*this,TypeAlignment) 14786b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 14797192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 14805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 14815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 14825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1484bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1485bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 14867e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 14877e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1488c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 14897e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14907e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1491c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1492c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1493c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 14946b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType *New = new(*this, TypeAlignment) 14956b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType(EltTy, QualType(), NumElts, ASM, EltTypeQuals, Brackets); 1496c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1497c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1498c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1499c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1500c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1501c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1502898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1503898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 150404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor/// type. 15057e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 15067e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1507898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 15087e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 15097e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1510cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor assert((!NumElts || NumElts->isTypeDependent() || 1511cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor NumElts->isValueDependent()) && 1512898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1513898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 151404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor void *InsertPos = 0; 1515cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayType *Canon = 0; 1516cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1517cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor if (NumElts) { 1518cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // Dependently-sized array types that do not have a specified 1519cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // number of elements will have their sizes deduced from an 1520cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // initializer. 1521cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor llvm::FoldingSetNodeID ID; 1522cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayType::Profile(ID, *this, getCanonicalType(EltTy), ASM, 1523cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor EltTypeQuals, NumElts); 1524cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1525cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor Canon = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1526cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor } 1527cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 152804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *New; 152904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (Canon) { 153004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // We already have a canonical version of this array type; use it as 153104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // the canonical type for a newly-built type. 15326b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15336b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(Canon, 0), 15346b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 153504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 153604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType CanonEltTy = getCanonicalType(EltTy); 153704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (CanonEltTy == EltTy) { 15386b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15396b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(), 15406b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 1541cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1542cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor if (NumElts) 1543cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayTypes.InsertNode(New, InsertPos); 154404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 154504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType Canon = getDependentSizedArrayType(CanonEltTy, NumElts, 154604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor ASM, EltTypeQuals, 154704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor SourceRange()); 15486b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15496b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, Canon, 15506b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 155104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 155204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 15531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1554898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1555898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1556898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1557898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1558c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1559c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1560c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1561c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 15620be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1563c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1564c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 15651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (IncompleteArrayType *ATP = 1566c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1567c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1568c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1569c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1570c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1571c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1572c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1573467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 1574f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 15752bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1576c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1577c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1578c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1579c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1580f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15812bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1582c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 15836b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType *New = new (*this, TypeAlignment) 15846b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType(EltTy, Canonical, ASM, EltTypeQuals); 1585c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1586c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1587c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1588c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1589fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1590fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 159173322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 159273322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 159373322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 15945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 15951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1596f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 159773322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 15981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 16005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 16011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VectorType::Profile(ID, vecType, NumElts, Type::Vector); 16025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 16045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 16055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 16075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 16085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1609467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!vecType.isCanonical()) { 1610f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 16111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 16135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1614f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16166b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType *New = new (*this, TypeAlignment) 16176b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType(vecType, NumElts, Canonical); 16185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 16195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 16205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 16215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1623213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 162473322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1625213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 162673322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 16271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1628f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1629213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 16301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 163173322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 163273322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 16331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 163473322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 163573322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 163673322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 163773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 163873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 163973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 164073322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 1641467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!vecType.isCanonical()) { 1642213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 16431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 164473322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 164573322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1646f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 164773322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 16486b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType *New = new (*this, TypeAlignment) 16496b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType(vecType, NumElts, Canonical); 165073322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 165173322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 165273322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 165373322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 165473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 16551eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 16569cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 16579cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 16582ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor llvm::FoldingSetNodeID ID; 16591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), 16602ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr); 16611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16622ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor void *InsertPos = 0; 16632ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *Canon 16642ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 16652ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *New; 16662ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (Canon) { 16672ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // We already have a canonical version of this array type; use it as 16682ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // the canonical type for a newly-built type. 16696b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16706b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), 16716b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall SizeExpr, AttrLoc); 16722ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 16732ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType CanonVecTy = getCanonicalType(vecType); 16742ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (CanonVecTy == vecType) { 16756b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16766b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, 16776b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall AttrLoc); 16782ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorTypes.InsertNode(New, InsertPos); 16792ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 16802ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType Canon = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, 16812ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SourceLocation()); 16826b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16836b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, Canon, SizeExpr, AttrLoc); 16842ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 16852ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 16861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16879cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 16889cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 16899cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 16909cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 169172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 16925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 16932455636163fdd18581d7fdae816433f886d88213Mike StumpQualType ASTContext::getFunctionNoProtoType(QualType ResultTy, bool NoReturn) { 16945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 16955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 16965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 16972455636163fdd18581d7fdae816433f886d88213Mike Stump FunctionNoProtoType::Profile(ID, ResultTy, NoReturn); 16981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 17001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionNoProtoType *FT = 170172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 17025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 17031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1705467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!ResultTy.isCanonical()) { 17062455636163fdd18581d7fdae816433f886d88213Mike Stump Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy), NoReturn); 17071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 170972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 171072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1711f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 17125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17146b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType *New = new (*this, TypeAlignment) 17156b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType(ResultTy, Canonical, NoReturn); 17165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 171772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 17185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 17195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 17225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 172361710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1724971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1725465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1726465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 17272455636163fdd18581d7fdae816433f886d88213Mike Stump const QualType *ExArray, bool NoReturn) { 17285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 17295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 17305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 173172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1732465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 17332455636163fdd18581d7fdae816433f886d88213Mike Stump NumExs, ExArray, NoReturn); 17345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 17361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionProtoType *FTP = 173772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 17385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1739465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1740465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 174154e14c4db764c0636160d26c5bbf491637c83a76John McCall bool isCanonical = !hasExceptionSpec && ResultTy.isCanonical(); 17425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 174354e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!ArgArray[i].isCanonicalAsParam()) 17445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 17455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1747465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 17485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 17495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 17505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 17515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 17525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 175354e14c4db764c0636160d26c5bbf491637c83a76John McCall CanonicalArgs.push_back(getCanonicalParamType(ArgArray[i])); 1754465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1755f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1756beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 175747259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor isVariadic, TypeQuals, false, 175847259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor false, 0, 0, NoReturn); 1759465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 17605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 176172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 176272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1763f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 17645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1765465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 176672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1767465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1768465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 17691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FunctionProtoType *FTP = 1770465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1771465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 17726b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumExs*sizeof(QualType), TypeAlignment); 177372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1774465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 17752455636163fdd18581d7fdae816433f886d88213Mike Stump ExArray, NumExs, Canonical, NoReturn); 17765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 177772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 17785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 17795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17812ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 17822ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 17834b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 17841e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 17852ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 17861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17871e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 17882ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1789fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1790fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 17919fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (ObjCInterfaceDecl *ObjCInterface 17929fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump = dyn_cast<ObjCInterfaceDecl>(Decl)) 17932ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 179449aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1795c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1796566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1797566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1798f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 17996b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) RecordType(Record); 18009fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1801566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1802566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1803f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 18046b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) EnumType(Enum); 1805ed97649e9574b9d854fa4d6109c9333ae0993554John McCall } else if (UnresolvedUsingTypenameDecl *Using = 1806ed97649e9574b9d854fa4d6109c9333ae0993554John McCall dyn_cast<UnresolvedUsingTypenameDecl>(Decl)) { 1807ed97649e9574b9d854fa4d6109c9333ae0993554John McCall Decl->TypeForDecl = new (*this, TypeAlignment) UnresolvedUsingType(Using); 18089fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else 18092ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 181049aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 18114b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 181249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 18132ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 18142ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 18155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 18165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 18175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 18185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 18191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1820f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 18216b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new(*this, TypeAlignment) 18226b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypedefType(Type::Typedef, Decl, Canonical); 18235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 18245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 18255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 18265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 182749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// \brief Retrieve a substitution-result type. 182849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallQualType 182949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallASTContext::getSubstTemplateTypeParmType(const TemplateTypeParmType *Parm, 183049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType Replacement) { 1831467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(Replacement.isCanonical() 183249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall && "replacement types must always be canonical"); 183349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 183449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall llvm::FoldingSetNodeID ID; 183549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType::Profile(ID, Parm, Replacement); 183649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall void *InsertPos = 0; 183749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType *SubstParm 183849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall = SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 183949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 184049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall if (!SubstParm) { 184149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstParm = new (*this, TypeAlignment) 184249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType(Parm, Replacement); 184349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall Types.push_back(SubstParm); 184449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos); 184549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 184649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 184749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return QualType(SubstParm, 0); 184849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall} 184949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 1850fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 18511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parameter or parameter pack with the given depth, index, and (optionally) 185276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 18531eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 185476e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1855fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1856fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 185776e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1858fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 18591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateTypeParmType *TypeParm 1860fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1861fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1862fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1863fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 18641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 186576e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 186676e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 18676b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 18686b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack, Name, Canon); 186976e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 18706b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 18716b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack); 1872fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1873fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1874fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1875fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1876fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1877fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1878fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 18791eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 18807532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 1881d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo &Args, 1882833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall QualType Canon) { 1883d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall unsigned NumArgs = Args.size(); 1884d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 1885833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall llvm::SmallVector<TemplateArgument, 4> ArgVec; 1886833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.reserve(NumArgs); 1887833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall for (unsigned i = 0; i != NumArgs; ++i) 1888833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.push_back(Args[i].getArgument()); 1889833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1890833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return getTemplateSpecializationType(Template, ArgVec.data(), NumArgs, Canon); 1891833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall} 1892833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1893833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallQualType 1894833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallASTContext::getTemplateSpecializationType(TemplateName Template, 18957532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 18967532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 18977532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 1898b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (!Canon.isNull()) 1899b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = getCanonicalType(Canon); 1900b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor else { 1901b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor // Build the canonical template specialization type. 19021275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateName CanonTemplate = getCanonicalTemplateName(Template); 19031275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::SmallVector<TemplateArgument, 4> CanonArgs; 19041275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.reserve(NumArgs); 19051275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor for (unsigned I = 0; I != NumArgs; ++I) 19061275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.push_back(getCanonicalTemplateArgument(Args[I])); 19071275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 19081275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Determine whether this canonical template specialization type already 19091275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // exists. 19101275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::FoldingSetNodeID ID; 19111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType::Profile(ID, CanonTemplate, 1912828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor CanonArgs.data(), NumArgs, *this); 19131275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 19141275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor void *InsertPos = 0; 19151275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateSpecializationType *Spec 19161275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 19171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19181275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor if (!Spec) { 19191275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate a new canonical template specialization type. 19201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 19211275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor sizeof(TemplateArgument) * NumArgs), 19226b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 19231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Spec = new (Mem) TemplateSpecializationType(*this, CanonTemplate, 19241275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.data(), NumArgs, 1925b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon); 19261275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Types.push_back(Spec); 19271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 19281275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 19291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1930b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (Canon.isNull()) 1931b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = QualType(Spec, 0); 19321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(Canon->isDependentType() && 19331275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor "Non-dependent template-id type must have a canonical type"); 1934b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor } 1935fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 19361275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate the (non-canonical) template specialization type, but don't 19371275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // try to unique it: these types typically have location information that 19381275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // we don't unique and don't want to lose. 19391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 194040808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 19416b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 19421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType *Spec 19431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = new (Mem) TemplateSpecializationType(*this, Template, Args, NumArgs, 1944828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor Canon); 19451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 194655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 19471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(Spec, 0); 194855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 194955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 19501eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 1951ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1952e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1953e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1954ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1955e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1956e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 19571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualifiedNameType *T 1958e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1959e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1960e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1961e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 19621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T = new (*this) QualifiedNameType(NNS, NamedType, 1963ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1964e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1965e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1966e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1967e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1968e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 19691eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1970d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1971d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1972d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1973d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1974d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1975d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1976d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1977d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1978d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1979d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1980d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1981d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1982d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1983d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 19841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypenameType *T 1985d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1986d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1987d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1988d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1989d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1990d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1991d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 19921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 1993d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1994d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 19951eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 19961eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpASTContext::getTypenameType(NestedNameSpecifier *NNS, 19971734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 19981734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 19991734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 20001734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20011734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 20021734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 20031734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 20041734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 20051734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 2006183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall = CanonType->getAs<TemplateSpecializationType>(); 20071734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 20081734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 20091734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 20101734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 20111734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 20121734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20131734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 20141734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 20151734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20161734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 20171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypenameType *T 20181734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 20191734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 20201734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 20211734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20221734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 20231734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 20241734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 20251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 20261734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 20271734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20287da2431c23ef1ee8acb114e39692246e1801afc2John McCallQualType 20297da2431c23ef1ee8acb114e39692246e1801afc2John McCallASTContext::getElaboratedType(QualType UnderlyingType, 20307da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::TagKind Tag) { 20317da2431c23ef1ee8acb114e39692246e1801afc2John McCall llvm::FoldingSetNodeID ID; 20327da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::Profile(ID, UnderlyingType, Tag); 20331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20347da2431c23ef1ee8acb114e39692246e1801afc2John McCall void *InsertPos = 0; 20357da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 20367da2431c23ef1ee8acb114e39692246e1801afc2John McCall if (T) 20377da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 20387da2431c23ef1ee8acb114e39692246e1801afc2John McCall 20397da2431c23ef1ee8acb114e39692246e1801afc2John McCall QualType Canon = getCanonicalType(UnderlyingType); 20407da2431c23ef1ee8acb114e39692246e1801afc2John McCall 20417da2431c23ef1ee8acb114e39692246e1801afc2John McCall T = new (*this) ElaboratedType(UnderlyingType, Tag, Canon); 20427da2431c23ef1ee8acb114e39692246e1801afc2John McCall Types.push_back(T); 20437da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedTypes.InsertNode(T, InsertPos); 20447da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 20457da2431c23ef1ee8acb114e39692246e1801afc2John McCall} 20467da2431c23ef1ee8acb114e39692246e1801afc2John McCall 204788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 204888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 204988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 205088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 20512e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 205288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 205388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 205454e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic bool areSortedAndUniqued(ObjCProtocolDecl **Protocols, 205554e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned NumProtocols) { 205654e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols == 0) return true; 205754e14c4db764c0636160d26c5bbf491637c83a76John McCall 205854e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 1; i != NumProtocols; ++i) 205954e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!CmpProtocolNames(Protocols[i-1], Protocols[i])) 206054e14c4db764c0636160d26c5bbf491637c83a76John McCall return false; 206154e14c4db764c0636160d26c5bbf491637c83a76John McCall return true; 206254e14c4db764c0636160d26c5bbf491637c83a76John McCall} 206354e14c4db764c0636160d26c5bbf491637c83a76John McCall 206454e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic void SortAndUniqueProtocols(ObjCProtocolDecl **Protocols, 206588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 206688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 20671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 206888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 206988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 207088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 207188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 207288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 207388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 207488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 207588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2076d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 2077d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 207814108da7f7fc059772711e4ffee1322a27b152a7Steve NaroffQualType ASTContext::getObjCObjectPointerType(QualType InterfaceT, 20791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCProtocolDecl **Protocols, 2080d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff unsigned NumProtocols) { 2081d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff llvm::FoldingSetNodeID ID; 208214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ObjCObjectPointerType::Profile(ID, InterfaceT, Protocols, NumProtocols); 2083d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 2084d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 2085d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (ObjCObjectPointerType *QT = 2086d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 2087d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QT, 0); 2088d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 208954e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 209054e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 209154e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!InterfaceT.isCanonical() || 209254e14c4db764c0636160d26c5bbf491637c83a76John McCall !areSortedAndUniqued(Protocols, NumProtocols)) { 209354e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!areSortedAndUniqued(Protocols, NumProtocols)) { 209454e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 209554e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 209654e14c4db764c0636160d26c5bbf491637c83a76John McCall 209754e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 209854e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 209954e14c4db764c0636160d26c5bbf491637c83a76John McCall 210054e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 210154e14c4db764c0636160d26c5bbf491637c83a76John McCall &Sorted[0], UniqueCount); 210254e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 210354e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 210454e14c4db764c0636160d26c5bbf491637c83a76John McCall Protocols, NumProtocols); 210554e14c4db764c0636160d26c5bbf491637c83a76John McCall } 210654e14c4db764c0636160d26c5bbf491637c83a76John McCall 210754e14c4db764c0636160d26c5bbf491637c83a76John McCall // Regenerate InsertPos. 210854e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 210954e14c4db764c0636160d26c5bbf491637c83a76John McCall } 211054e14c4db764c0636160d26c5bbf491637c83a76John McCall 2111d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // No Match; 21126b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ObjCObjectPointerType *QType = new (*this, TypeAlignment) 211354e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCObjectPointerType(Canonical, InterfaceT, Protocols, NumProtocols); 21141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2115d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 2116d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 2117d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QType, 0); 2118d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 211988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2120c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// getObjCInterfaceType - Return the unique reference to the type for the 2121c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// specified ObjC interface decl. The list of protocols is optional. 2122c15cb2af27514ecc879daba9aa01389c5203685dSteve NaroffQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, 2123a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 21244b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 2125c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 21261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21274b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 2128c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (ObjCInterfaceType *QT = 2129c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 21304b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 21311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 213254e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 213354e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 213454e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols && !areSortedAndUniqued(Protocols, NumProtocols)) { 213554e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 213654e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 21374b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 213854e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 213954e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 214024fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 214154e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCInterfaceType(Decl, &Sorted[0], UniqueCount); 214254e14c4db764c0636160d26c5bbf491637c83a76John McCall 214354e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos); 214454e14c4db764c0636160d26c5bbf491637c83a76John McCall } 214554e14c4db764c0636160d26c5bbf491637c83a76John McCall 214654e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceType *QType = new (*this, TypeAlignment) 214754e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceType(Canonical, const_cast<ObjCInterfaceDecl*>(Decl), 214854e14c4db764c0636160d26c5bbf491637c83a76John McCall Protocols, NumProtocols); 214924fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 215024fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis Types.push_back(QType); 215154e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.InsertNode(QType, InsertPos); 215224fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis return QualType(QType, 0); 215324fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis} 215424fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 215572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 215672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 21579752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 21581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// DeclRefExpr's. This doesn't effect the type checker, since it operates 21599752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 216072564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 2161dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType *toe; 2162b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (tofExpr->isTypeDependent()) { 2163b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor llvm::FoldingSetNodeID ID; 2164b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType::Profile(ID, *this, tofExpr); 21651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2166b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor void *InsertPos = 0; 2167b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType *Canon 2168b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); 2169b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (Canon) { 2170b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // We already have a "canonical" version of an identical, dependent 2171b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // typeof(expr) type. Use that as our canonical type. 21726b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, 2173b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor QualType((TypeOfExprType*)Canon, 0)); 2174b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2175b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor else { 2176b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // Build a new, canonical typeof(expr) type. 21776b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon 21786b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) DependentTypeOfExprType(*this, tofExpr); 2179b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); 2180b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor toe = Canon; 2181b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2182b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } else { 2183dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType Canonical = getCanonicalType(tofExpr->getType()); 21846b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, Canonical); 2185dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 21869752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 21879752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 2188d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2189d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 21909752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 21919752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 21929752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 21931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 21949752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 2195d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 2196f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 21976b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeOfType *tot = new (*this, TypeAlignment) TypeOfType(tofType, Canonical); 21989752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 21999752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 2200d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2201d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 220260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 220360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 220460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 2205a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 2206a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 22071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 220860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 220960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 221060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 221160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 221260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 221360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 221460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 221560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 221660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 221760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 221860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 221960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 222060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 222160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 222260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 22231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 222460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 22251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 222760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 222860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 222960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 22301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 223160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 223260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 223360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 2234395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 2235395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 2236395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 22371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 2238395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 2239395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 2240dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor DecltypeType *dt; 22419d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (e->isTypeDependent()) { 22429d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor llvm::FoldingSetNodeID ID; 22439d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType::Profile(ID, *this, e); 22441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22459d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor void *InsertPos = 0; 22469d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType *Canon 22479d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); 22489d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (Canon) { 22499d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // We already have a "canonical" version of an equivalent, dependent 22509d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // decltype type. Use that as our canonical type. 22516b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, DependentTy, 22529d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor QualType((DecltypeType*)Canon, 0)); 22539d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 22549d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor else { 22559d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // Build a new, canonical typeof(expr) type. 22566b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon = new (*this, TypeAlignment) DependentDecltypeType(*this, e); 22579d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeTypes.InsertNode(Canon, InsertPos); 22589d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor dt = Canon; 22599d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 22609d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } else { 2261dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType T = getDecltypeForExpr(e, *this); 22626b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, T, getCanonicalType(T)); 2263dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 2264395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 2265395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 2266395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 2267395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 22685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 22695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 2270e607ed068334bacb8d7b093996b4671c6ca79e25Mike StumpQualType ASTContext::getTagDeclType(const TagDecl *Decl) { 2271d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 2272e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // FIXME: What is the design on getTagDeclType when it requires casting 2273e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // away const? mutable? 2274e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump return getTypeDeclType(const_cast<TagDecl*>(Decl)); 22755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 22765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 22781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 22791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// needs to agree with the definition in <stddef.h>. 22805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 2281b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 22825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 22835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 228464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 228564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 228664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 228764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 228864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 228964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 229064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 229164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 229264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 229364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 229464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 229564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 229664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 229764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 22988b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 22998b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 23008b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 2301b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 23028b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 23038b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 2304e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2305e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 2306e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2307e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 230854e14c4db764c0636160d26c5bbf491637c83a76John McCallCanQualType ASTContext::getCanonicalParamType(QualType T) { 230954e14c4db764c0636160d26c5bbf491637c83a76John McCall // Push qualifiers into arrays, and then discard any remaining 231054e14c4db764c0636160d26c5bbf491637c83a76John McCall // qualifiers. 231154e14c4db764c0636160d26c5bbf491637c83a76John McCall T = getCanonicalType(T); 231254e14c4db764c0636160d26c5bbf491637c83a76John McCall const Type *Ty = T.getTypePtr(); 231354e14c4db764c0636160d26c5bbf491637c83a76John McCall 231454e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Result; 231554e14c4db764c0636160d26c5bbf491637c83a76John McCall if (isa<ArrayType>(Ty)) { 231654e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getArrayDecayedType(QualType(Ty,0)); 231754e14c4db764c0636160d26c5bbf491637c83a76John McCall } else if (isa<FunctionType>(Ty)) { 231854e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getPointerType(QualType(Ty, 0)); 231954e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 232054e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = QualType(Ty, 0); 232154e14c4db764c0636160d26c5bbf491637c83a76John McCall } 232254e14c4db764c0636160d26c5bbf491637c83a76John McCall 232354e14c4db764c0636160d26c5bbf491637c83a76John McCall return CanQualType::CreateUnsafe(Result); 232454e14c4db764c0636160d26c5bbf491637c83a76John McCall} 232554e14c4db764c0636160d26c5bbf491637c83a76John McCall 232677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 232777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 232877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 232977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 233077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 233177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 233250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas GregorCanQualType ASTContext::getCanonicalType(QualType T) { 23330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 23340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ptr = Quals.strip(T); 23350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanType = Ptr->getCanonicalTypeInternal(); 23360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 23370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // The canonical internal type will be the canonical type *except* 23380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // that we push type qualifiers down through array types. 23391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If there are no new qualifiers to push down, stop here. 23410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!Quals.hasQualifiers()) 234250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(CanType); 2343c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 23440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the type qualifiers are on an array type, get the canonical 23450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type of the array with the qualifiers applied to the element 23460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type. 2347c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 2348c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 23490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return CanQualType::CreateUnsafe(getQualifiedType(CanType, Quals)); 23501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2351c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2352c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 23530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(AT->getElementType(), Quals); 2354c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 23551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2356c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 235750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 235850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getConstantArrayType(NewEltTy, CAT->getSize(), 235950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor CAT->getSizeModifier(), 23600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2361c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 236250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 236350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 23640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 23651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2366898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 236750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 236850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getDependentSizedArrayType(NewEltTy, 2369bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2370bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 237150d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getSizeModifier(), 23720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 237387a924e37dc40c6e3e2b33d1dbd646aeccf4c15bDouglas Gregor DSAT->getBracketsRange())->getCanonicalTypeInternal()); 2374898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2375c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 237650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(getVariableArrayType(NewEltTy, 2377bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 2378bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr()->Retain() : 0, 237950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getSizeModifier(), 23800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 238150d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getBracketsRange())); 2382c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 2383c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 238480ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCallDeclarationName ASTContext::getNameForTemplate(TemplateName Name) { 238580ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (TemplateDecl *TD = Name.getAsTemplateDecl()) 238680ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return TD->getDeclName(); 238780ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 238880ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (DependentTemplateName *DTN = Name.getAsDependentTemplateName()) { 238980ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (DTN->isIdentifier()) { 239080ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return DeclarationNames.getIdentifier(DTN->getIdentifier()); 239180ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } else { 239280ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return DeclarationNames.getCXXOperatorName(DTN->getOperator()); 239380ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } 239480ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } 239580ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 23960bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall OverloadedTemplateStorage *Storage = Name.getAsOverloadedTemplate(); 23970bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(Storage); 23980bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall return (*Storage->begin())->getDeclName(); 239980ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall} 240080ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 240125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 240225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 240325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 240425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 240597fbaa2a38804268a024f1a104b43fcf8b4411b0Argyrios Kyrtzidis return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); 240625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 24070bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(!Name.getAsOverloadedTemplate()); 24081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 240925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 241025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 241125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 241225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 241325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 2414db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregorbool ASTContext::hasSameTemplateName(TemplateName X, TemplateName Y) { 2415db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor X = getCanonicalTemplateName(X); 2416db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor Y = getCanonicalTemplateName(Y); 2417db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor return X.getAsVoidPointer() == Y.getAsVoidPointer(); 2418db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor} 2419db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor 24201eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateArgument 24211275ae098acda31fe0e434510c729fcfed0458a1Douglas GregorASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) { 24221275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor switch (Arg.getKind()) { 24231275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Null: 24241275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 24251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24261275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Expression: 24271275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 24281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24291275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Declaration: 2430833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(Arg.getAsDecl()->getCanonicalDecl()); 24311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2432788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor case TemplateArgument::Template: 2433788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor return TemplateArgument(getCanonicalTemplateName(Arg.getAsTemplate())); 2434788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor 24351275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Integral: 2436833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(*Arg.getAsIntegral(), 24371275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getIntegralType())); 24381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24391275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Type: 2440833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(getCanonicalType(Arg.getAsType())); 24411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24421275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Pack: { 24431275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Allocate in ASTContext 24441275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument *CanonArgs = new TemplateArgument[Arg.pack_size()]; 24451275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor unsigned Idx = 0; 24461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (TemplateArgument::pack_iterator A = Arg.pack_begin(), 24471275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor AEnd = Arg.pack_end(); 24481275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor A != AEnd; (void)++A, ++Idx) 24491275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs[Idx] = getCanonicalTemplateArgument(*A); 24501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24511275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument Result; 24521275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Result.setArgumentPack(CanonArgs, Arg.pack_size(), false); 24531275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Result; 24541275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 24551275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 24561275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 24571275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Silence GCC warning 24581275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor assert(false && "Unhandled template argument kind"); 24591275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(); 24601275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor} 24611275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 2462d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 2463d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 24641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!NNS) 2465d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2466d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2467d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 2468d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 2469d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 24701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 2471d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 2472d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 2473d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2474d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 2475d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 2476d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 2477d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 2478d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2479d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 2480d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 2481d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 24821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 0, 24831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 2484d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 2485d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2486d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2487d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 2488d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 2489d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2490d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2491d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2492d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2493d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2494d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2495d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2496c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2497c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2498c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 2499a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor if (!T.hasLocalQualifiers()) { 2500c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2501c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2502c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2503c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 25041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Handle the common negative case fast. 2506c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 25070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!isa<ArrayType>(CType)) 2508c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 25091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Apply any qualifiers from the array type to the element type. This 2511c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2512c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 25131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2514c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2515c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 251650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor // we must propagate them down into the element type. 25170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 25180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 25190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ty = Qs.strip(T.getDesugaredType()); 25201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2521c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2522c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 25230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ATy == 0 || Qs.empty()) 2524c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 25251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2526c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2527c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2528c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2529c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 25300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(ATy->getElementType(), Qs); 25311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2532c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2533c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2534c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 25350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2536c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2537c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2538c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 25390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 2540898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 25411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const DependentSizedArrayType *DSAT 2542898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2543898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 25441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getDependentSizedArrayType(NewEltTy, 2545bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2546bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 2547898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 25480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 25497e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 25501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2551c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 25527e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 2553bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 25540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getSizeExpr()->Retain() : 0, 2555c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 25560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 25577e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 255877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 255977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 256077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2561e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2562e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2563e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2564e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2565e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2566e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2567e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2568c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2569c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2570c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2571c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2572c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2573c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 25741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2575c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2576e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2577e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 25780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getQualifiedType(PtrTy, PrettyArrayType->getIndexTypeQualifiers()); 2579e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2580e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 25815e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas GregorQualType ASTContext::getBaseElementType(QualType QT) { 25820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 25835e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor while (true) { 25840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *UT = Qs.strip(QT); 25855e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor if (const ArrayType *AT = getAsArrayType(QualType(UT,0))) { 25865e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QT = AT->getElementType(); 25876dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump } else { 25880953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qs.apply(QT); 25895e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 25905e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 25915e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor} 25925e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor 2593fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders CarlssonQualType ASTContext::getBaseElementType(const ArrayType *AT) { 2594fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson QualType ElemTy = AT->getElementType(); 25951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2596fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson if (const ArrayType *AT = getAsArrayType(ElemTy)) 2597fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson return getBaseElementType(AT); 25981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25996183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 26006183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 26016183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 26020de78998e7bda473b408437053e48661b510d453Fariborz Jahanian/// getConstantArrayElementCount - Returns number of constant array elements. 26031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpuint64_t 26040de78998e7bda473b408437053e48661b510d453Fariborz JahanianASTContext::getConstantArrayElementCount(const ConstantArrayType *CA) const { 26050de78998e7bda473b408437053e48661b510d453Fariborz Jahanian uint64_t ElementCount = 1; 26060de78998e7bda473b408437053e48661b510d453Fariborz Jahanian do { 26070de78998e7bda473b408437053e48661b510d453Fariborz Jahanian ElementCount *= CA->getSize().getZExtValue(); 26080de78998e7bda473b408437053e48661b510d453Fariborz Jahanian CA = dyn_cast<ConstantArrayType>(CA->getElementType()); 26090de78998e7bda473b408437053e48661b510d453Fariborz Jahanian } while (CA); 26100de78998e7bda473b408437053e48661b510d453Fariborz Jahanian return ElementCount; 26110de78998e7bda473b408437053e48661b510d453Fariborz Jahanian} 26120de78998e7bda473b408437053e48661b510d453Fariborz Jahanian 26135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 26145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2615a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2616183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) 26175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2618a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2619183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall assert(T->getAs<BuiltinType>() && "getFloatingRank(): not a floating type"); 2620183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall switch (T->getAs<BuiltinType>()->getKind()) { 2621a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 26225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 26235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 26245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 26255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 26275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 26281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 26291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// point or a complex type (based on typeDomain/typeSize). 2630716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2631716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 26321361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 26331361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 26341361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 26351361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 26361361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2637716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2638f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2639f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2640f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2641f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2642f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 26431361b11066239ea15764a2a844405352d87296b3Chris Lattner 26441361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 26451361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 26461361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 26471361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 26481361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 26491361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 26505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 26525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 26537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 26547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 26557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 26561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 2657a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2658a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2659a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 26601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2661a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2662fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2663a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2664fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2665fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 26665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 26675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2668f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2669f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2670f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2671f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2672467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(T->isCanonicalUnqualified() && "T should be canonicalized"); 2673f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2674842aef8d942a880eeb9535d40de31a86838264cbJohn McCall T = ET->getDecl()->getPromotionType().getTypePtr(); 2675f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2676a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2677a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2678a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2679f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2680f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2681f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2682f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2683f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2684f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2685f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 2686f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 2687f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 26881b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) 2689f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 2690f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2691f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 26927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 26937cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2694f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 26957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 26967cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 26977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 26987cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2699f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 27007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 27017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2702f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 27037cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 27047cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2705f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 27067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 27077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2708f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 27097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 27107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2711f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 27122df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 27132df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 27142df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2715f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2716f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2717f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 271804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \brief Whether this is a promotable bitfield reference according 271904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// to C99 6.3.1.1p2, bullet 2 (and GCC extensions). 272004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// 272104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \returns the type this bit-field will promote to, or NULL if no 272204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// promotion occurs. 272304e8357f6801e9ff52673e7e899a67bbabf9de93Eli FriedmanQualType ASTContext::isPromotableBitField(Expr *E) { 272404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman FieldDecl *Field = E->getBitField(); 272504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (!Field) 272604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 272704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 272804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman QualType FT = Field->getType(); 272904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 273004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman llvm::APSInt BitWidthAP = Field->getBitWidth()->EvaluateAsInt(*this); 273104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t BitWidth = BitWidthAP.getZExtValue(); 273204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 273304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // GCC extension compatibility: if the bit-field size is less than or equal 273404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // to the size of int, it gets promoted no matter what its type is. 273504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // For instance, unsigned long bf : 4 gets promoted to signed int. 273604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth < IntSize) 273704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return IntTy; 273804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 273904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth == IntSize) 274004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return FT->isSignedIntegerType() ? IntTy : UnsignedIntTy; 274104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 274204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // Types bigger than int are not subject to promotions, and therefore act 274304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // like the base type. 274404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // FIXME: This doesn't quite match what gcc does, but what gcc does here 274504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // is ridiculous. 274604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 274704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman} 274804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 2749a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// getPromotedIntegerType - Returns the type that Promotable will 2750a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// promote to: C99 6.3.1.1p2, assuming that Promotable is a promotable 2751a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// integer type. 2752a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType ASTContext::getPromotedIntegerType(QualType Promotable) { 2753a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(!Promotable.isNull()); 2754a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isPromotableIntegerType()); 2755842aef8d942a880eeb9535d40de31a86838264cbJohn McCall if (const EnumType *ET = Promotable->getAs<EnumType>()) 2756842aef8d942a880eeb9535d40de31a86838264cbJohn McCall return ET->getDecl()->getPromotionType(); 2757a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (Promotable->isSignedIntegerType()) 2758a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return IntTy; 2759a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t PromotableSize = getTypeSize(Promotable); 2760a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 2761a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize); 2762a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return (PromotableSize != IntSize) ? IntTy : UnsignedIntTy; 2763a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 2764a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 27651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getIntegerTypeOrder - Returns the highest ranked integer type: 27667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 27671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 27687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2769f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2770f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 27717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 27721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2773f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2774f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 27751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 27777cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 27781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27797cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 27807cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 27817cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 27827cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 27831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 27857cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 27867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 27877cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 27887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 27891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27907cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 27917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 27921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 27937cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 27947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 27957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 27967cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 27977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 27987cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 27991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 28017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 28021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 28037cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 28045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 280571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 280679cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlssonstatic RecordDecl * 280779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders CarlssonCreateRecordDecl(ASTContext &Ctx, RecordDecl::TagKind TK, DeclContext *DC, 280879cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson SourceLocation L, IdentifierInfo *Id) { 280979cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson if (Ctx.getLangOptions().CPlusPlus) 281079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson return CXXRecordDecl::Create(Ctx, TK, DC, L, Id); 281179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson else 281279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson return RecordDecl::Create(Ctx, TK, DC, L, Id); 281379cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson} 281479cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson 28151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// getCFConstantStringType - Return the type used for constant CFStrings. 281671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 281771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 28181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CFConstantStringTypeDecl = 281979cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 282079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("NSConstantString")); 282179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson 2822f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 28231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 282471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 28250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[0] = getPointerType(IntTy.withConst()); 2826f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2827f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 282871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 28290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[2] = getPointerType(CharTy.withConst()); 283071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 28311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[3] = LongTy; 28321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 283344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 283444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 28351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 283644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 2837a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 28381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 28394afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 284017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 284144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 284244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 284344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 284471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 28451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 284671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 28478467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2848b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2849319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 28506217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2851319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2852319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2853319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2854319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 28551eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getObjCFastEnumerationStateType() { 2856bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 285744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 285879cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 285979cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__objcFastEnumerationState")); 28601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2861bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2862bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2863de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff getPointerType(ObjCIdTypedefType), 2864bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2865bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2866bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2867bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 28681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 286944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 28701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, 28711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCFastEnumerationStateTypeDecl, 28721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation(), 0, 2873a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 28741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 28754afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 287617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 287744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 28781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 287944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2880bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 28811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2882bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2883bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2884bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2885adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike StumpQualType ASTContext::getBlockDescriptorType() { 2886adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump if (BlockDescriptorType) 2887adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 2888adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2889adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 2890adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Needs the FlagAppleBlock bit. 289179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 289279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__block_descriptor")); 2893adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2894adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 2895adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2896adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2897adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2898adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2899adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 2900adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "reserved", 2901083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size" 2902adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2903adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2904adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 2; ++i) { 2905adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldDecl *Field = FieldDecl::Create(*this, 2906adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T, 2907adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump SourceLocation(), 2908adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 2909a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 2910adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*BitWidth=*/0, 2911adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*Mutable=*/false); 2912adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 2913adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 2914adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2915adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->completeDefinition(*this); 2916adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2917adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = T; 2918adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2919adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 2920adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 2921adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2922adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stumpvoid ASTContext::setBlockDescriptorType(QualType T) { 2923adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const RecordType *Rec = T->getAs<RecordType>(); 2924adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump assert(Rec && "Invalid BlockDescriptorType"); 2925adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = Rec->getDecl(); 2926adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 2927adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2928083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike StumpQualType ASTContext::getBlockDescriptorExtendedType() { 2929083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump if (BlockDescriptorExtendedType) 2930083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 2931083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2932083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump RecordDecl *T; 2933083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump // FIXME: Needs the FlagAppleBlock bit. 293479cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 293579cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__block_descriptor_withcopydispose")); 2936083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2937083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump QualType FieldTypes[] = { 2938083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 2939083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 2940083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy), 2941083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy) 2942083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 2943083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2944083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const char *FieldNames[] = { 2945083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "reserved", 2946083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size", 2947083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "CopyFuncPtr", 2948083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "DestroyFuncPtr" 2949083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 2950083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2951083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump for (size_t i = 0; i < 4; ++i) { 2952083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump FieldDecl *Field = FieldDecl::Create(*this, 2953083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T, 2954083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump SourceLocation(), 2955083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump &Idents.get(FieldNames[i]), 2956a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 2957083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*BitWidth=*/0, 2958083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*Mutable=*/false); 2959083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T->addDecl(Field); 2960083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump } 2961083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2962083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T->completeDefinition(*this); 2963083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2964083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = T; 2965083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2966083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 2967083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 2968083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2969083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stumpvoid ASTContext::setBlockDescriptorExtendedType(QualType T) { 2970083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const RecordType *Rec = T->getAs<RecordType>(); 2971083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump assert(Rec && "Invalid BlockDescriptorType"); 2972083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = Rec->getDecl(); 2973083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 2974083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2975af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stumpbool ASTContext::BlockRequiresCopying(QualType Ty) { 2976af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isBlockPointerType()) 2977af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 2978af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (isObjCNSObjectType(Ty)) 2979af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 2980af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isObjCObjectPointerType()) 2981af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 2982af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return false; 2983af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump} 2984af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2985af7b44d847d3e44c43346d508b2e55a6254b6e9dMike StumpQualType ASTContext::BuildByRefType(const char *DeclName, QualType Ty) { 2986af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // type = struct __Block_byref_1_X { 2987ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // void *__isa; 2988af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // struct __Block_byref_1_X *__forwarding; 2989ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __flags; 2990ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __size; 299138e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__copy_helper; // as needed 299238e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__destroy_help // as needed 2993af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // int X; 2994ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // } * 2995ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2996af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump bool HasCopyAndDispose = BlockRequiresCopying(Ty); 2997af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2998af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // FIXME: Move up 29994d0d85c3370f2726c74ba0ece0a5e712830a1d82Fariborz Jahanian static unsigned int UniqueBlockByRefTypeID = 0; 3000f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 3001f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__Block_byref_" << 3002f5942a44880be26878592eb052b737579349411eBenjamin Kramer ++UniqueBlockByRefTypeID << '_' << DeclName; 3003af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump RecordDecl *T; 300479cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 300579cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get(Name.str())); 3006af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->startDefinition(); 3007af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType Int32Ty = IntTy; 3008af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump assert(getIntWidth(IntTy) == 32 && "non-32bit int not supported"); 3009af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType FieldTypes[] = { 3010af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3011af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(getTagDeclType(T)), 3012af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 3013af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 3014af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3015af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3016af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Ty 3017af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 3018af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3019af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump const char *FieldNames[] = { 3020af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__isa", 3021af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__forwarding", 3022af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__flags", 3023af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__size", 3024af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__copy_helper", 3025af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__destroy_helper", 3026af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump DeclName, 3027af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 3028af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3029af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump for (size_t i = 0; i < 7; ++i) { 3030af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (!HasCopyAndDispose && i >=4 && i <= 5) 3031af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump continue; 3032af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3033af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump &Idents.get(FieldNames[i]), 3034a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3035af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump /*BitWidth=*/0, /*Mutable=*/false); 3036af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->addDecl(Field); 3037af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump } 3038af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3039af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->completeDefinition(*this); 3040af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3041af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return getPointerType(getTagDeclType(T)); 3042ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump} 3043ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3044ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3045ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike StumpQualType ASTContext::getBlockParmType( 3046083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump bool BlockHasCopyDispose, 3047ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump llvm::SmallVector<const Expr *, 8> &BlockDeclRefDecls) { 3048adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Move up 30494d0d85c3370f2726c74ba0ece0a5e712830a1d82Fariborz Jahanian static unsigned int UniqueBlockParmTypeID = 0; 3050f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 3051f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__block_literal_" 3052f5942a44880be26878592eb052b737579349411eBenjamin Kramer << ++UniqueBlockParmTypeID; 3053adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 305479cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 305579cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get(Name.str())); 3056adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 3057adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 3058adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 3059adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 3060adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 3061083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump (BlockHasCopyDispose ? 3062083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorExtendedType()) : 3063083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorType())) 3064adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3065adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3066adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 3067adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__isa", 3068adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__flags", 3069adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__reserved", 3070adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__FuncPtr", 3071adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__descriptor" 3072adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3073adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3074adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 5; ++i) { 3075ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3076adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 3077a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3078ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 3079ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump T->addDecl(Field); 3080ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3081ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3082ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump for (size_t i = 0; i < BlockDeclRefDecls.size(); ++i) { 3083ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const Expr *E = BlockDeclRefDecls[i]; 3084ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(E); 3085ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump clang::IdentifierInfo *Name = 0; 3086ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE) { 3087ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const ValueDecl *D = BDRE->getDecl(); 3088ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump Name = &Idents.get(D->getName()); 3089ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3090ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump QualType FieldType = E->getType(); 3091ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3092ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE && BDRE->isByRef()) 3093af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType = BuildByRefType(BDRE->getDecl()->getNameAsCString(), 3094af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType); 3095ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3096ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3097a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Name, FieldType, /*TInfo=*/0, 3098ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 3099adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 3100adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 3101adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3102adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->completeDefinition(*this); 3103ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3104ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump return getPointerType(getTagDeclType(T)); 3105adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3106adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3107319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 31086217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 3109319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 3110319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 3111319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 3112319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3113e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 3114e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 31152d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 3116e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 3117bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 3118bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 31191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 312085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 312185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 312285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 3123a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 312433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 3125a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 312698be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 31271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 312833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 312933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 313098be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 313133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 313233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 313398be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 313498be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 313533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 313633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 31375e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall/// getObjCEncodingForBlockDecl - Return the encoded type for this method 31385e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall/// declaration. 31395e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnallvoid ASTContext::getObjCEncodingForBlock(const BlockExpr *Expr, 31405e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall std::string& S) { 31415e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall const BlockDecl *Decl = Expr->getBlockDecl(); 31425e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType BlockTy = 31435e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall Expr->getType()->getAs<BlockPointerType>()->getPointeeType(); 31445e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Encode result type. 31455e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall getObjCEncodingForType(cast<FunctionType>(BlockTy)->getResultType(), S); 31465e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Compute size of all parameters. 31475e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Start with computing size of a pointer in number of bytes. 31485e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // FIXME: There might(should) be a better way of doing this computation! 31495e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall SourceLocation Loc; 31505e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 31515e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall int ParmOffset = PtrSize; 31525e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 31535e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall E = Decl->param_end(); PI != E; ++PI) { 31545e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType PType = (*PI)->getType(); 31555e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall int sz = getObjCEncodingTypeSize(PType); 31565e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall assert (sz > 0 && "BlockExpr - Incomplete param type"); 31575e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset += sz; 31585e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } 31595e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Size of the argument frame 31605e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall S += llvm::utostr(ParmOffset); 31615e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Block pointer and offset. 31625e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall S += "@?0"; 31635e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset = PtrSize; 31645e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall 31655e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Argument types. 31665e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset = PtrSize; 31675e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall for (BlockDecl::param_const_iterator PI = Decl->param_begin(), E = 31685e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall Decl->param_end(); PI != E; ++PI) { 31695e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmVarDecl *PVDecl = *PI; 31705e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType PType = PVDecl->getOriginalType(); 31715e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall if (const ArrayType *AT = 31725e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 31735e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Use array's original type only if it has known number of 31745e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // elements. 31755e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall if (!isa<ConstantArrayType>(AT)) 31765e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall PType = PVDecl->getType(); 31775e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } else if (PType->isFunctionType()) 31785e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall PType = PVDecl->getType(); 31795e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall getObjCEncodingForType(PType, S); 31805e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall S += llvm::utostr(ParmOffset); 31815e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset += getObjCEncodingTypeSize(PType); 31825e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } 31835e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall} 31845e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall 3185a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 318633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 31871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 3188e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3189c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3190ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 3191a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 319233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 31930d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 319433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 319533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 319633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 319733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 319898be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 319933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 320033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 320133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 320289951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 320389951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 320489951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 320589951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 3206a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 320733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 320833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 320933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 321033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 321133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 32121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 321333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 321433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 321589951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 321689951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 321789951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 32181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType PType = PVDecl->getOriginalType(); 32194306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 3220ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 3221ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 3222ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 3223bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 3224ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3225ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 3226ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3227ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 322833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 32294306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 32300d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 323133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 3232a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 323333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 323433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 323533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 3236c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 323783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 3238c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 3239c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 32401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Property attributes are stored as a comma-delimited C string. The simple 32411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// attributes readonly and bycopy are encoded as single characters. The 32421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parametrized attributes, getter=name, setter=name, and ivar=name, are 32431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// encoded as single characters, followed by an identifier. Property types 32441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// are also encoded as a parametrized attribute. The characters used to encode 324583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 324683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 324783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 324883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 324983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 325083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 325183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 325283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 325383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 325483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 325583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 325683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 325783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 325883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 325983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 326083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 32611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 3262c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 3263e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3264c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 3265c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 3266c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 3267c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3268c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 3269c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 32701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCCategoryImplDecl *CID = 3271c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 3272c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 327317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 3274653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3275c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3276c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3277c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3278c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3279c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3280c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3281c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3282c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3283c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3284c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 328561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 3286c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 328717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 3288653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3289c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3290c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3291c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3292c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3293c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3294c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3295c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3296c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 32971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3298c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3299c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3300c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3301c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3302c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 3303c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3304c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 3305090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 3306090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 33071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 3308090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 3309090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 3310c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3311c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 3312c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 3313c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3314c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 3315c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 3316c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 33171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case ObjCPropertyDecl::Retain: S += ",&"; break; 3318c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3319c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3320c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3321c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 3322c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 3323c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 3324c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 3325c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3326090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 3327090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 33281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3329c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 3330c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 3331077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 3332c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3333c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3334c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 3335c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 3336077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 3337c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3338c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3339c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 3340c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 3341c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 334239f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 3343c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3344c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3345c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 3346c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 3347c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3348a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 33491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Another legacy compatibility encoding: 32-bit longs are encoded as 33501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 'l' or 'L' , but not always. For typedefs, we need to use 3351a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 3352a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 3353a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 33548e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(PointeeTy.getTypePtr())) { 3355183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = PointeeTy->getAs<BuiltinType>()) { 3356c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 3357c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3358a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 33591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else 3360c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 3361c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3362a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 3363a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3364a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3365a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 3366a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 33677d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 3368153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 336982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 337082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 337182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 337282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 33731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(T, S, true, true, Field, 33745b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 337582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 337682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 33771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void EncodeBitField(const ASTContext *Context, std::string& S, 3378153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 33798b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 33808b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 33818b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 33829a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 33838b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 33848b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 33858b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 33868b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 338701eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar// FIXME: Use SmallString for accumulating string. 338882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 338982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 339082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 3391153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 3392090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 33936ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 3394183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = T->getAs<BuiltinType>()) { 3395ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD && FD->isBitField()) 3396ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return EncodeBitField(this, S, FD); 3397ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner char encoding; 3398ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner switch (BT->getKind()) { 33991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: assert(0 && "Unhandled builtin type kind"); 3400ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 3401ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 3402ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_U: 3403ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 3404ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 3405ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 34061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::ULong: 34071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 34081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 340972696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 3410ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 3411ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 3412ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_S: 3413ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 3414ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Short: encoding = 's'; break; 3415ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 34161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::Long: 34171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 34181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 3419ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner break; 3420ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 3421ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 3422ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 3423ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 3424ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 342543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 34261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3427ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += encoding; 3428ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3429ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 34301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3431183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) { 3432c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 34331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 3434c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 3435ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3436ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 343760bce3ef20a4c9684e3825cdd739fefb9810327dFariborz Jahanian 34386217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const PointerType *PT = T->getAs<PointerType>()) { 34398d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian if (PT->isObjCSelType()) { 34408d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian S += ':'; 34418d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian return; 34428d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian } 344385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 34448d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian 3445a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 3446a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 3447a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 3448a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 34491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Also, do not emit the 'r' for anything but the outermost type! 34508e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(T.getTypePtr())) { 3451a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 3452a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3453a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3454a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 34559fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (OutermostType) { 3456a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 34576217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek while (P->getAs<PointerType>()) 34586217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek P = P->getAs<PointerType>()->getPointeeType(); 3459a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 3460a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3461a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3462a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3463a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3464a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 3465a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 3466a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 3467a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 3468a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 3469a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 3470a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 3471a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 3472a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 3473a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3474a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 34751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 347685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 347785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 347885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 3479e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 348085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 348185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 348285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 34836217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek } else if (const RecordType *RTy = PointeeTy->getAs<RecordType>()) { 34849533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_class *" to "#". 34859533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { 34869533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '#'; 34879533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 34889533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 34899533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_object *" to "@". 34909533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { 34919533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '@'; 34929533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 34939533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 34949533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // fall through... 349585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 349685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 3497a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 3498a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 34991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 350043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 3501ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3502ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3504ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ArrayType *AT = 3505ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Ignore type qualifiers etc. 3506ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 3507559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 3508559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 3509559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 3510559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 35111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3512559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3513559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 3514559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 35151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3516559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 3517559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 3518559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 3519559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 3520559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 3521559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 3522559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 35231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3525559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3526559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 3527559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 3528ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3529ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3531183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (T->getAs<FunctionType>()) { 3532c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 3533ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3534ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35366217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *RTy = T->getAs<RecordType>()) { 353782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 3538d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 3539502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 3540502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 3541502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 3542502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 3543502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 3544502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 35450d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 35467d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 354717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 354817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 354944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 355043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 3551d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 355244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 3553d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 3554d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 35551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3556d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 355743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 35581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 355943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 3560d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 3561a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 3562a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 35631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(qt, S, false, true, 356443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 3565d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 35667d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 35676de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 3568d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 3569ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3570ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3572ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isEnumeralType()) { 35738b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 35748b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 35758b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 35768b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 3577ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3578ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3580ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isBlockPointerType()) { 358121a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 3582ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3583ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35850953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (const ObjCInterfaceType *OIT = T->getAs<ObjCInterfaceType>()) { 358643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 35870953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ObjCInterfaceDecl *OI = OIT->getDecl(); 358843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 358943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 359043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 359143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 3592f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 359343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 3594f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 359543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 35961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 359743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 359843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 35991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 360043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 360143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 360243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 3603ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 360443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 36051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3606183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = T->getAs<ObjCObjectPointerType>()) { 360714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (OPT->isObjCIdType()) { 360814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '@'; 360914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3610ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 361227d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->isObjCClassType() || OPT->isObjCQualifiedClassType()) { 361327d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // FIXME: Consider if we need to output qualifiers for 'Class<p>'. 361427d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // Since this is a binary compatibility issue, need to consult with runtime 361527d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // folks. Fortunately, this is a *very* obsure construct. 361614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '#'; 361714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3618ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3620ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCQualifiedIdType()) { 36211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(getObjCIdType(), S, 362214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandPointedToStructures, 362314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandStructures, FD); 362414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (FD || EncodingProperty) { 362514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Note that we do extended encoding of protocol qualifer list 362614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Only when doing ivar or property encoding. 362714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 362867ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 362967ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 363014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '<'; 363114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += (*I)->getNameAsString(); 363214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '>'; 363314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 363414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 363514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 363614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3637ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3639ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner QualType PointeeTy = OPT->getPointeeType(); 3640ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (!EncodingProperty && 3641ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner isa<TypedefType>(PointeeTy.getTypePtr())) { 3642ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Another historical/compatibility reason. 36431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We encode the underlying type which comes out as 3644ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // {...}; 3645ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '^'; 36461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, 36471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump false, ExpandPointedToStructures, 3648ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner NULL); 364914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 365014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 3651ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3652ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '@'; 365327d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->getInterfaceDecl() && (FD || EncodingProperty)) { 3654ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 365527d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff S += OPT->getInterfaceDecl()->getIdentifier()->getName(); 365667ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 365767ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 3658ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '<'; 3659ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += (*I)->getNameAsString(); 3660ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '>'; 36611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3662ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 3663ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3664ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3665ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3667ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner assert(0 && "@encode for type not implemented!"); 366885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 366985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 36701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 3671ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 3672ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 3673ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 3674ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 3675ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 3676ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 3677ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 3678ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 3679ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 3680ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 3681ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 3682ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 3683ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 3684ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 3685ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 3686ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setBuiltinVaListType(QualType T) { 3687b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 36881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3689b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 3690b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 3691b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3692ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCIdType(QualType T) { 3693de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = T; 36947e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 36957e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 3696ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCSelType(QualType T) { 369713dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian ObjCSelTypedefType = T; 3698b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 3699b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3700ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCProtoType(QualType QT) { 3701a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 3702390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 3703390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 3704ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCClassType(QualType T) { 3705de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = T; 37068baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 37078baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3708a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 37091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(ObjCConstantStringType.isNull() && 37102198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 37111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3712a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 37132198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 37142198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 37150bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall/// \brief Retrieve the template name that corresponds to a non-empty 37160bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall/// lookup. 37170bd6feb9e9d40fc889fd47e899985125a43dfed8John McCallTemplateName ASTContext::getOverloadedTemplateName(NamedDecl * const *Begin, 37180bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl * const *End) { 37190bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall unsigned size = End - Begin; 37200bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(size > 1 && "set is not overloaded!"); 37217532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 37220bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall void *memory = Allocate(sizeof(OverloadedTemplateStorage) + 37230bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall size * sizeof(FunctionTemplateDecl*)); 37240bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall OverloadedTemplateStorage *OT = new(memory) OverloadedTemplateStorage(size); 37250bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall 37260bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl **Storage = OT->getStorage(); 37270bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall for (NamedDecl * const *I = Begin; I != End; ++I) { 37280bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl *D = *I; 37290bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(isa<FunctionTemplateDecl>(D) || 37300bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall (isa<UsingShadowDecl>(D) && 37310bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))); 37320bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall *Storage++ = D; 37337532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 37347532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 37350bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall return TemplateName(OT); 37367532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 37377532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3738d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// \brief Retrieve the template name that represents a qualified 3739d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// template name such as \c std::vector. 37401eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 3741d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor bool TemplateKeyword, 37420bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall TemplateDecl *Template) { 3743d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor llvm::FoldingSetNodeID ID; 3744d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 37451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3746d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor void *InsertPos = 0; 3747d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName *QTN = 37480bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3749d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor if (!QTN) { 3750d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 3751d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 3752d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor } 37531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3754d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor return TemplateName(QTN); 3755d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor} 3756d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 37577532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 37587532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 37591eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 37607532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 37611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((!NNS || NNS->isDependent()) && 37623b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor "Nested name specifier must be dependent"); 37637532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 37647532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 37657532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 37667532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 37677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 37687532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 37697532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 37707532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 37717532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 37727532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 37737532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 37747532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 37757532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 37767532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 37777532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 37787532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 37797532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 37807532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 37817532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 37827532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 37837532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 37847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 37857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3786ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Retrieve the template name that represents a dependent 3787ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// template name such as \c MetaFun::template operator+. 3788ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorTemplateName 3789ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 3790ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor OverloadedOperatorKind Operator) { 3791ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor assert((!NNS || NNS->isDependent()) && 3792ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor "Nested name specifier must be dependent"); 3793ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3794ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor llvm::FoldingSetNodeID ID; 3795ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateName::Profile(ID, NNS, Operator); 3796ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3797ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor void *InsertPos = 0; 3798ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateName *QTN = 3799ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3800ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3801ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (QTN) 3802ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 3803ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3804ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 3805ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (CanonNNS == NNS) { 3806ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator); 3807ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 3808ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Operator); 3809ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator, Canon); 3810ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 3811ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3812ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 3813ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 3814ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor} 3815ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3816b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 3817d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 3818d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 3819e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallCanQualType ASTContext::getFromTargetType(unsigned Type) const { 3820b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 3821e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall case TargetInfo::NoInt: return CanQualType(); 3822b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 3823b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 3824b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 3825b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 3826b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 3827b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 3828b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 3829b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 3830b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 3831b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 3832b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 3833e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall return CanQualType(); 3834b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 3835b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3836b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3837b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 3838b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3839b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3840fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 3841fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 3842fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 3843f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff/// FIXME: Move to Type. 3844fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 3845fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 3846fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 3847fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 384840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 3849fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 3850fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 38511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return false; 3852fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 3853fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 38544fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 38554fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 38564fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 38570953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualifiers::GC ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 38580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttrs = Qualifiers::GCNone; 38594fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 38604fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 3861b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 38624fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 38631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // (or pointers to them) be treated as though they were declared 3864a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 38650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GCAttrs == Qualifiers::GCNone) { 386675212ee91313bc1b6dd826d9b173541bc4016539Fariborz Jahanian if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) 38670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttrs = Qualifiers::Strong; 3868a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 38696217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek return getObjCGCAttrKind(Ty->getAs<PointerType>()->getPointeeType()); 3870a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 3871c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 3872c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 3873f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 38740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qualifiers::GCNone; 38754fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 3876b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 38774fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 38784fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 38796ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 38806ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 38816ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 3882770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 38831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// areCompatVectorTypes - Return true if the two specified vector types are 38846ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 38856ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 38866ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 3887467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified()); 38886ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 388961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 38906ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 38916ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 38924084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 38934084c306635b70f37029dca938444e6013f08684Steve Naroff// ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. 38944084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 38954084c306635b70f37029dca938444e6013f08684Steve Naroff 38964084c306635b70f37029dca938444e6013f08684Steve Naroff/// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the 38974084c306635b70f37029dca938444e6013f08684Steve Naroff/// inheritance hierarchy of 'rProto'. 38980fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanianbool ASTContext::ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, 38990fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian ObjCProtocolDecl *rProto) { 39004084c306635b70f37029dca938444e6013f08684Steve Naroff if (lProto == rProto) 390114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return true; 39024084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCProtocolDecl::protocol_iterator PI = rProto->protocol_begin(), 39034084c306635b70f37029dca938444e6013f08684Steve Naroff E = rProto->protocol_end(); PI != E; ++PI) 39044084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 39054084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 39064084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 39074084c306635b70f37029dca938444e6013f08684Steve Naroff} 390814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 39094084c306635b70f37029dca938444e6013f08684Steve Naroff/// QualifiedIdConformsQualifiedId - compare id<p,...> with id<p1,...> 39104084c306635b70f37029dca938444e6013f08684Steve Naroff/// return true if lhs's protocols conform to rhs's protocol; false 39114084c306635b70f37029dca938444e6013f08684Steve Naroff/// otherwise. 39124084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::QualifiedIdConformsQualifiedId(QualType lhs, QualType rhs) { 39134084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isObjCQualifiedIdType() && rhs->isObjCQualifiedIdType()) 39144084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(lhs, rhs, false); 39154084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 39164084c306635b70f37029dca938444e6013f08684Steve Naroff} 39174084c306635b70f37029dca938444e6013f08684Steve Naroff 39184084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an 39194084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIDType. 39204084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::ObjCQualifiedIdTypesAreCompatible(QualType lhs, QualType rhs, 39214084c306635b70f37029dca938444e6013f08684Steve Naroff bool compare) { 39224084c306635b70f37029dca938444e6013f08684Steve Naroff // Allow id<P..> and an 'id' or void* type in all cases. 39231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isVoidPointerType() || 39244084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->isObjCIdType() || lhs->isObjCClassType()) 39254084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 39261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else if (rhs->isVoidPointerType() || 39274084c306635b70f37029dca938444e6013f08684Steve Naroff rhs->isObjCIdType() || rhs->isObjCClassType()) 39284084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 39294084c306635b70f37029dca938444e6013f08684Steve Naroff 39304084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsQID = lhs->getAsObjCQualifiedIdType()) { 3931183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *rhsOPT = rhs->getAs<ObjCObjectPointerType>(); 39321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39334084c306635b70f37029dca938444e6013f08684Steve Naroff if (!rhsOPT) return false; 39341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39354084c306635b70f37029dca938444e6013f08684Steve Naroff if (rhsOPT->qual_empty()) { 39361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a unqualified interface pointer "NSString*", 39374084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 39384084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 39394084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 39404084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 39414084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 39424084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 39434084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 39440fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (!rhsID->ClassImplementsProtocol(*I, true)) 39454084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 39464084c306635b70f37029dca938444e6013f08684Steve Naroff } 39474084c306635b70f37029dca938444e6013f08684Steve Naroff } 39484084c306635b70f37029dca938444e6013f08684Steve Naroff // If there are no qualifiers and no interface, we have an 'id'. 39494084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 39504084c306635b70f37029dca938444e6013f08684Steve Naroff } 39511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 39524084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 39534084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 39544084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 39554084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 3956de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 3957de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // when comparing an id<P> on lhs with a static type on rhs, 3958de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // see if static class implements all of id's protocols, directly or 3959de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // through its super class and categories. 39604084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsOPT->qual_begin(), 39614084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsOPT->qual_end(); J != E; ++J) { 39624084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 39634084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 39644084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 39654084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 39668f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 39678f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 3968de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 39691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a qualified interface pointer "NSString<P>*", 39704084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 39714084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 39724084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 39734084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 39744084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 39754084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 39764084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 39770fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (rhsID->ClassImplementsProtocol(*I, true)) { 39784084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 39794084c306635b70f37029dca938444e6013f08684Steve Naroff break; 39804084c306635b70f37029dca938444e6013f08684Steve Naroff } 39814084c306635b70f37029dca938444e6013f08684Steve Naroff } 39824084c306635b70f37029dca938444e6013f08684Steve Naroff } 39834084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 3984de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return false; 3985de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 39861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3987de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return true; 3988de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 39891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39904084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsQID = rhs->getAsObjCQualifiedIdType(); 39914084c306635b70f37029dca938444e6013f08684Steve Naroff assert(rhsQID && "One of the LHS/RHS should be id<x>"); 39924084c306635b70f37029dca938444e6013f08684Steve Naroff 39931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCObjectPointerType *lhsOPT = 39944084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->getAsObjCInterfacePointerType()) { 39954084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhsOPT->qual_empty()) { 39964084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 39974084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *lhsID = lhsOPT->getInterfaceDecl()) { 39984084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = rhsQID->qual_begin(), 39994084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); I != E; ++I) { 40004084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 40014084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 40024084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 40030fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (lhsID->ClassImplementsProtocol(*I, true)) { 40044084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 40054084c306635b70f37029dca938444e6013f08684Steve Naroff break; 40064084c306635b70f37029dca938444e6013f08684Steve Naroff } 40074084c306635b70f37029dca938444e6013f08684Steve Naroff } 40084084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 40094084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40104084c306635b70f37029dca938444e6013f08684Steve Naroff } 40114084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40124084c306635b70f37029dca938444e6013f08684Steve Naroff } 40131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 40144084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsOPT->qual_begin(), 40154084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsOPT->qual_end(); I != E; ++I) { 40164084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 40174084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 40184084c306635b70f37029dca938444e6013f08684Steve Naroff 40194084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 40204084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 40214084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 40224084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsQID->qual_begin(), 40234084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); J != E; ++J) { 40244084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 40254084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 40264084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 40274084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 40284084c306635b70f37029dca938444e6013f08684Steve Naroff break; 40294084c306635b70f37029dca938444e6013f08684Steve Naroff } 40304084c306635b70f37029dca938444e6013f08684Steve Naroff } 40314084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 40324084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40334084c306635b70f37029dca938444e6013f08684Steve Naroff } 40344084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40354084c306635b70f37029dca938444e6013f08684Steve Naroff } 40364084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40374084c306635b70f37029dca938444e6013f08684Steve Naroff} 40384084c306635b70f37029dca938444e6013f08684Steve Naroff 40394084c306635b70f37029dca938444e6013f08684Steve Naroff/// canAssignObjCInterfaces - Return true if the two interface types are 40404084c306635b70f37029dca938444e6013f08684Steve Naroff/// compatible for assignment from RHS to LHS. This handles validation of any 40414084c306635b70f37029dca938444e6013f08684Steve Naroff/// protocol qualifiers on the LHS or RHS. 40424084c306635b70f37029dca938444e6013f08684Steve Naroff/// 40434084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 40444084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *RHSOPT) { 40454084c306635b70f37029dca938444e6013f08684Steve Naroff // If either type represents the built-in 'id' or 'Class' types, return true. 40464084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCBuiltinType() || RHSOPT->isObjCBuiltinType()) 40474084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40484084c306635b70f37029dca938444e6013f08684Steve Naroff 40494084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 40501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 40511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType(RHSOPT,0), 40524084c306635b70f37029dca938444e6013f08684Steve Naroff false); 40534084c306635b70f37029dca938444e6013f08684Steve Naroff 40544084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 40554084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 40564084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHS && RHS) // We have 2 user-defined types. 40574084c306635b70f37029dca938444e6013f08684Steve Naroff return canAssignObjCInterfaces(LHS, RHS); 40581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40594084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 406014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 406114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4062e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// getIntersectionOfProtocols - This routine finds the intersection of set 4063e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// of protocols inherited from two distinct objective-c pointer objects. 4064e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// It is used to build composite qualifier list of the composite type of 4065e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// the conditional expression involving two objective-c pointer objects. 4066e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianstatic 4067e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid getIntersectionOfProtocols(ASTContext &Context, 4068e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4069e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *RHSOPT, 4070e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVectorImpl<ObjCProtocolDecl *> &IntersectionOfProtocols) { 4071e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4072e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4073e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4074e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4075e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> InheritedProtocolSet; 4076e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned LHSNumProtocols = LHS->getNumProtocols(); 4077e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (LHSNumProtocols > 0) 4078e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHS->qual_begin(), LHS->qual_end()); 4079e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 4080e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVector<ObjCProtocolDecl *, 8> LHSInheritedProtocols; 4081e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Context.CollectInheritedProtocols(LHS->getDecl(), LHSInheritedProtocols); 4082e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHSInheritedProtocols.begin(), 4083e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSInheritedProtocols.end()); 4084e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4085e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4086e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned RHSNumProtocols = RHS->getNumProtocols(); 4087e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (RHSNumProtocols > 0) { 4088e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl **RHSProtocols = (ObjCProtocolDecl **)RHS->qual_begin(); 4089e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (unsigned i = 0; i < RHSNumProtocols; ++i) 4090e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (InheritedProtocolSet.count(RHSProtocols[i])) 4091e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.push_back(RHSProtocols[i]); 4092e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4093e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 4094e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVector<ObjCProtocolDecl *, 8> RHSInheritedProtocols; 4095e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Context.CollectInheritedProtocols(RHS->getDecl(), RHSInheritedProtocols); 4096e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian // FIXME. This may cause duplication of protocols in the list, but should 4097e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian // be harmless. 4098e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (unsigned i = 0, len = RHSInheritedProtocols.size(); i < len; ++i) 4099e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (InheritedProtocolSet.count(RHSInheritedProtocols[i])) 4100e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.push_back(RHSInheritedProtocols[i]); 4101e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4102e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 4103e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4104db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// areCommonBaseCompatible - Returns common base class of the two classes if 4105db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// one found. Note that this is O'2 algorithm. But it will be called as the 4106db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// last type comparison in a ?-exp of ObjC pointer types before a 4107db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// warning is issued. So, its invokation is extremely rare. 4108db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz JahanianQualType ASTContext::areCommonBaseCompatible( 4109db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4110db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCObjectPointerType *RHSOPT) { 4111db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4112db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4113db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian if (!LHS || !RHS) 4114db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4115db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4116db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian while (const ObjCInterfaceDecl *LHSIDecl = LHS->getDecl()->getSuperClass()) { 4117db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian QualType LHSTy = getObjCInterfaceType(LHSIDecl); 4118db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian LHS = LHSTy->getAs<ObjCInterfaceType>(); 4119e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (canAssignObjCInterfaces(LHS, RHS)) { 4120e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVector<ObjCProtocolDecl *, 8> IntersectionOfProtocols; 4121e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian getIntersectionOfProtocols(*this, 4122e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSOPT, RHSOPT, IntersectionOfProtocols); 4123e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (IntersectionOfProtocols.empty()) 4124e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSTy = getObjCObjectPointerType(LHSTy); 4125e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else 4126e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSTy = getObjCObjectPointerType(LHSTy, &IntersectionOfProtocols[0], 4127e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.size()); 4128e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return LHSTy; 4129e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4130db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian } 4131db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4132db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4133db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian} 4134db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 41353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 41363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 41376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 41386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 41396ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 41406ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 41411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41426ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 41436ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 4144c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (LHS->getNumProtocols() == 0) 41456ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 41461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41476ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 41486ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 4149c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (RHS->getNumProtocols() == 0) 41506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 41511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4152c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator LHSPI = LHS->qual_begin(), 4153c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff LHSPE = LHS->qual_end(); 415491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 415591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 415691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 415791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 415891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 4159c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator RHSPI = RHS->qual_begin(), 41604084c306635b70f37029dca938444e6013f08684Steve Naroff RHSPE = RHS->qual_end(); 41618f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff RHSPI != RHSPE; RHSPI++) { 41628f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 416391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 41648f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 41658f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 416691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 416791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 416891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 416991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 417091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 417191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 417291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 41736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 41746ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 4175389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 4176389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 4177183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *LHSOPT = LHS->getAs<ObjCObjectPointerType>(); 4178183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *RHSOPT = RHS->getAs<ObjCObjectPointerType>(); 41791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 418014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (!LHSOPT || !RHSOPT) 4181389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 418214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 418314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 418414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff canAssignObjCInterfaces(RHSOPT, LHSOPT); 4185389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 4186389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 41871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 4188ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 41891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C99 6.2.7p1: Two types have compatible types if their types are the 4190ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 41913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 41923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 41933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 41943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 41953d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 4196183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *lbase = lhs->getAs<FunctionType>(); 4197183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *rbase = rhs->getAs<FunctionType>(); 419872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 419972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 42003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 42013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 42023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 42033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 42043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 42053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 420661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 420761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 420861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 420961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 42106dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump // FIXME: double check this 42112455636163fdd18581d7fdae816433f886d88213Mike Stump bool NoReturn = lbase->getNoReturnAttr() || rbase->getNoReturnAttr(); 42122455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != lbase->getNoReturnAttr()) 42132455636163fdd18581d7fdae816433f886d88213Mike Stump allLTypes = false; 42142455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != rbase->getNoReturnAttr()) 42152455636163fdd18581d7fdae816433f886d88213Mike Stump allRTypes = false; 42161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 4218465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 4219465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 42203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 42213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 42223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 42233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 42243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 42253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 42263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 42273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 42283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 42293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 42303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 42317fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 42327fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 42337fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 42343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 42353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 42363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 42373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 42383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 42393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 42403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 42413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 424261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 424361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 424461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 424561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 42463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 42473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 42483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 42493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 42502455636163fdd18581d7fdae816433f886d88213Mike Stump lproto->isVariadic(), lproto->getTypeQuals(), 42512455636163fdd18581d7fdae816433f886d88213Mike Stump NoReturn); 42523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 42533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 42543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 42553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 42563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 425772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 42583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 4259465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 42603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 42613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 42623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 42633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 42643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 42653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 42663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 42673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 42683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 42693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 42703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 42713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 42723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 42733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 42743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 42753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 42763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 42772d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getNumArgs(), proto->isVariadic(), 42782d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getTypeQuals(), NoReturn); 42793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 42803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 42813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 42823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 42832455636163fdd18581d7fdae816433f886d88213Mike Stump return getFunctionNoProtoType(retType, NoReturn); 42843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 42853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 42863d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 428743d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 428843d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 428943d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 42907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 42917c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 42923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 42933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 42947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 42957c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 42966217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RT = LHS->getAs<ReferenceType>()) 4297c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 42986217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RT = RHS->getAs<ReferenceType>()) 4299c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 43003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 43023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 43033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4304f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 43053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 43063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 43073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the qualifiers are different, the types aren't compatible... mostly. 4309a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor Qualifiers LQuals = LHSCan.getLocalQualifiers(); 4310a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor Qualifiers RQuals = RHSCan.getLocalQualifiers(); 43110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals != RQuals) { 43120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If any of these qualifiers are different, we have a type 43130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // mismatch. 43140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || 43150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall LQuals.getAddressSpace() != RQuals.getAddressSpace()) 43160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 43170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 43180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Exactly one GC qualifier difference is allowed: __strong is 43190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // okay if the other type has no GC qualifier but is an Objective 43200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // C object pointer (i.e. implicitly strong by default). We fix 43210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // this by pretending that the unqualified type was actually 43220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // qualified __strong. 43230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); 43240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); 43250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements"); 43260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 43270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) 43280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 43290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 43300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Strong && RHSCan->isObjCObjectPointerType()) { 43310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(LHS, getObjCGCQualType(RHS, Qualifiers::Strong)); 43320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 43330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_R == Qualifiers::Strong && LHSCan->isObjCObjectPointerType()) { 43340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(getObjCGCQualType(LHS, Qualifiers::Strong), RHS); 43350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 43363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 43370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 43380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 43390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Okay, qualifiers are equal. 43403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4341852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 4342852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 4343f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 43441adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 43451adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 43461adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 43471adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 43484c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 43494c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 4350a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 4351a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 4352a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 4353a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 43541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4355213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 4356213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 4357213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 43581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43594e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 43604e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 43611adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 43621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // a signed integer type, or an unsigned integer type. 4363842aef8d942a880eeb9535d40de31a86838264cbJohn McCall // Compatibility is based on the underlying type, not the promotion 4364842aef8d942a880eeb9535d40de31a86838264cbJohn McCall // type. 4365183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = LHS->getAs<EnumType>()) { 43663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 43673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 4368bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 4369183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = RHS->getAs<EnumType>()) { 43703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 43713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 4372bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 43731adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 43743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 4375ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 43763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43774a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 43781adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 437972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 438072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 438172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 438272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 438372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 438472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 438572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 438672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 43877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 43887c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 438972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 439072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 439172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 439272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 439372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 439472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 439572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 439672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 439772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 439872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 439972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 44001adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 44013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 44023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 44036217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<PointerType>()->getPointeeType(); 44046217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<PointerType>()->getPointeeType(); 44053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 44063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 440707d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 440861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 440907d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 441061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 44113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 44123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 4413c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 4414c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 4415c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 44166217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<BlockPointerType>()->getPointeeType(); 44176217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<BlockPointerType>()->getPointeeType(); 4418c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 4419c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 4420c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 4421c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 4422c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 4423c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 4424c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 4425c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 44261adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 44273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 44283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 44293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 44303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 44313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 44323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 44343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 44353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 44363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 443761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 443861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 443961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 444061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 44413bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 44423bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 44433bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 44443bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 44453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 44463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 444761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 444861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 444961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 445061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 44513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 44523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 44533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 44543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 44553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 44563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 44573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 44583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 44593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 44603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 44613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 44623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 44633bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 44643bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 44657e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 44667e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 44673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 44681adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 44693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 447072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 447172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 44723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 44731adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 44743cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 44753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 447664cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 447764cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 447864cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 44793cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 44805a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 4481183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (areCompatVectorTypes(LHS->getAs<VectorType>(), RHS->getAs<VectorType>())) 44823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 448361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 448461490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 44855fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 44865a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 44875a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 4488183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* LHSIface = LHS->getAs<ObjCInterfaceType>(); 4489183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* RHSIface = RHS->getAs<ObjCInterfaceType>(); 44905fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 44915fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 44925fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 44935fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 44943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 449561490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 449614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff case Type::ObjCObjectPointer: { 4497183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (canAssignObjCInterfaces(LHS->getAs<ObjCObjectPointerType>(), 4498183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall RHS->getAs<ObjCObjectPointerType>())) 449914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return LHS; 450014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4501bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 450214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 45035a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 45045a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 45055a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 45067532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 45077532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 45087532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 4509ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 451072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 451172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 4512ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 45137192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 45145426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 4515ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 4516ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 451788054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 4518ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 4519632d772a78db7e2cd9b36f8a22aee49d44486fbfSebastian Redl if (T->isBooleanType()) 4520ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 45216a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (FixedWidthIntType *FWIT = dyn_cast<FixedWidthIntType>(T)) { 4522f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 4523f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 4524842aef8d942a880eeb9535d40de31a86838264cbJohn McCall if (EnumType *ET = dyn_cast<EnumType>(T)) 452529a7f3342c3c6dd15d914c61ae22246c36d51ce7Eli Friedman T = ET->getDecl()->getIntegerType(); 4526f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 4527ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 4528ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4529ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 4530ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 4531ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 45326a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 45336a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // Turn <4 x signed int> -> <4 x unsigned int> 45346a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const VectorType *VTy = T->getAs<VectorType>()) 45356a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner return getVectorType(getCorrespondingUnsignedType(VTy->getElementType()), 45366a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner VTy->getNumElements()); 45376a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 45386a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // For enums, we return the unsigned version of the base type. 45396a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const EnumType *ETy = T->getAs<EnumType>()) 4540ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 45416a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 45426a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner const BuiltinType *BTy = T->getAs<BuiltinType>(); 45436a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner assert(BTy && "Unexpected signed integer type"); 4544ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 4545ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 4546ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 4547ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 4548ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 4549ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 4550ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 4551ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 4552ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 4553ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 4554ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 4555ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 45562df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 45572df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 4558ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 4559ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 4560ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 4561ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 4562ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4563ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 45642cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 45652cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 45662cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 456786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 456886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 456986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 457086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 457186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 457286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 457386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 457486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 45751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 457686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 457786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 457886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 457986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 458086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 45811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 458286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 458386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 458486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 458586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 45861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: Done = true; --Str; break; 458786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 458886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 458986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 459086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 459186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 459286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 459386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 459486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 459586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 459686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 459786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 459886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 459986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 460086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 460186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 460286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 460386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 460486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 46051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 460686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 460786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 460886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 460986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 461086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 461186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 461286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 461386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 461486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 461586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 461686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 461786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 461886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 461986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 462086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 462186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 462286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 462386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 462486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 462586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 462686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 462786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 462886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 462986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 463086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 463186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 463286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 463386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 463486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 463586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 463686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 463786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 463886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 463986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 464086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 464186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 464286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 464386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 464486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 464586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 464686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 464786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 464886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 464986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 465086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 465186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 465286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 465386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 465486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 465586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 465686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 465786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 465886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 465986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 466086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 466186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 466286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 466386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 466486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 466586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 466686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 466786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 466886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 466986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 467086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 467186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 467286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 467386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 467486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 467586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 467686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 467786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 467886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 467986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 468086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 468186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 468286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 468386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 468486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 468586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 468686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 468786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 468886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 46891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 469086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 46911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 469286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 469386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getVectorType(ElementType, NumElements); 469486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 469586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4696d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor case 'X': { 4697d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 4698d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor Type = Context.getComplexType(ElementType); 4699d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor break; 4700d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor } 47019a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'P': 4702c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor Type = Context.getFILEType(); 4703c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor if (Type.isNull()) { 4704f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_stdio; 470586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 470686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4707fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 47089a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'J': 4709f711c41dd9412a8182793259d355c4f6979ed5edMike Stump if (Signed) 4710782fa308a765aeac2acb39c4e697c937ec21185bMike Stump Type = Context.getsigjmp_bufType(); 4711f711c41dd9412a8182793259d355c4f6979ed5edMike Stump else 4712f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Type = Context.getjmp_bufType(); 4713f711c41dd9412a8182793259d355c4f6979ed5edMike Stump 4714fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump if (Type.isNull()) { 4715f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_setjmp; 4716fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump return QualType(); 4717fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump } 4718fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 4719782fa308a765aeac2acb39c4e697c937ec21185bMike Stump } 47201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 472186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 472286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 47231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 472486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 472586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 472686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 472786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 472886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 472986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getPointerType(Type); 473086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 473186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 473286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 473386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 473486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 473586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 47360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Type = Type.withConst(); 473786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 473886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 473986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 47401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 474186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 474286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 474386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 474486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 474586df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 474686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 474786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 47481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 474986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 47501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 475186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 475286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 475386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 475486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 475586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 475686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 475786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 475886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 475986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 476086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 476186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 476286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 47631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 476486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 476586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 476686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 476786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 476886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 476986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 477086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 477186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 477286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 477386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 477486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner TypeStr[0] == '.', 0); 477586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 4776a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4777a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType 4778a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanASTContext::UsualArithmeticConversionsType(QualType lhs, QualType rhs) { 4779a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Perform the usual unary conversions. We do this early so that 4780a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // integral promotions to "int" can allow us to exit early, in the 4781a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // lhs == rhs check. Also, for conversion purposes, we ignore any 4782a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // qualifiers. For example, "const float" and "float" are 4783a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // equivalent. 4784a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isPromotableIntegerType()) 4785a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getPromotedIntegerType(lhs); 4786a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4787a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = lhs.getUnqualifiedType(); 4788a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isPromotableIntegerType()) 4789a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getPromotedIntegerType(rhs); 4790a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4791a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = rhs.getUnqualifiedType(); 4792a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4793a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If both types are identical, no conversion is needed. 4794a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs == rhs) 4795a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 47961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4797a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If either side is a non-arithmetic type (e.g. a pointer), we are done. 4798a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The caller can deal with this (e.g. pointer + int). 4799a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (!lhs->isArithmeticType() || !rhs->isArithmeticType()) 4800a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 48011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 48021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // At this point, we have two different arithmetic types. 48031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4804a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle complex types first (C99 6.3.1.8p1). 4805a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexType() || rhs->isComplexType()) { 4806a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the complex type. 48071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (rhs->isIntegerType() || rhs->isComplexIntegerType()) { 4808a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 4809a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4810a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 48111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isIntegerType() || lhs->isComplexIntegerType()) { 4812a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 4813a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4814a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4815a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // This handles complex/complex, complex/float, or float/complex. 48161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // When both operands are complex, the shorter operand is converted to the 48171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type of the longer, and that is the type of the result. This corresponds 48181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // to what is done when combining two real floating-point operands. 48191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The fun begins when size promotion occur across type domains. 4820a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // From H&S 6.3.4: When one operand is complex and the other is a real 48211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // floating-point type, the less precise type is converted, within it's 4822a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // real or complex domain, to the precision of the other type. For example, 48231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // when combining a "long double" with a "double _Complex", the 4824a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // "double _Complex" is promoted to "long double _Complex". 4825a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 48261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 48271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (result > 0) { // The left side is bigger, convert rhs. 4828a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getFloatingTypeOfSizeWithinDomain(lhs, rhs); 48291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (result < 0) { // The right side is bigger, convert lhs. 4830a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getFloatingTypeOfSizeWithinDomain(rhs, lhs); 48311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 4832a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // At this point, lhs and rhs have the same rank/size. Now, make sure the 4833a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // domains match. This is a requirement for our implementation, C99 4834a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // does not require this promotion. 4835a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs != rhs) { // Domains don't match, we have complex/float mix. 4836a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType()) { // handle "double, _Complex double". 4837a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4838a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { // handle "_Complex double, double". 4839a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4840a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4841a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4842a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // The domain/size match exactly. 4843a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4844a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Now handle "real" floating types (i.e. float, double, long double). 4845a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType() || rhs->isRealFloatingType()) { 4846a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the real floating type. 4847a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isIntegerType()) { 4848a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the lhs floating point type. 4849a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4850a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4851a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isComplexIntegerType()) { 4852a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the complex floating point type. 4853a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(lhs); 4854a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4855a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isIntegerType()) { 4856a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the rhs floating point type. 4857a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4858a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 48591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isComplexIntegerType()) { 4860a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the complex floating point type. 4861a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(rhs); 4862a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4863a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // We have two real floating types, float/complex combos were handled above. 4864a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Convert the smaller operand to the bigger result. 4865a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 4866a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (result > 0) // convert the rhs 4867a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4868a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(result < 0 && "illegal float comparison"); 4869a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; // convert the lhs 4870a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4871a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexIntegerType() || rhs->isComplexIntegerType()) { 4872a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle GCC complex int extension. 4873a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *lhsComplexInt = lhs->getAsComplexIntegerType(); 4874a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *rhsComplexInt = rhs->getAsComplexIntegerType(); 4875a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4876a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsComplexInt && rhsComplexInt) { 48771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (getIntegerTypeOrder(lhsComplexInt->getElementType(), 4878a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsComplexInt->getElementType()) >= 0) 4879a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // convert the rhs 4880a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4881a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (lhsComplexInt && rhs->isIntegerType()) { 4882a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 4883a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4884a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (rhsComplexInt && lhs->isIntegerType()) { 4885a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 4886a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4887a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4888a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4889a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Finally, we have two differing integer types. 4890a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The rules for this case are in C99 6.3.1.8 4891a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int compare = getIntegerTypeOrder(lhs, rhs); 4892a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman bool lhsSigned = lhs->isSignedIntegerType(), 4893a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsSigned = rhs->isSignedIntegerType(); 4894a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman QualType destType; 4895a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsSigned == rhsSigned) { 4896a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Same signedness; use the higher-ranked type 4897a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = compare >= 0 ? lhs : rhs; 4898a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (compare != (lhsSigned ? 1 : -1)) { 4899a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The unsigned type has greater than or equal rank to the 4900a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // signed type, so use the unsigned type 4901a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? rhs : lhs; 4902a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (getIntWidth(lhs) != getIntWidth(rhs)) { 4903a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The two types are different widths; if we are here, that 4904a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // means the signed type is larger than the unsigned type, so 4905a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // use the signed type. 4906a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? lhs : rhs; 4907a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { 4908a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The signed type is higher-ranked than the unsigned type, 4909a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // but isn't actually any bigger (like unsigned int and long 4910a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // on most 32-bit systems). Use the unsigned type corresponding 4911a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // to the signed type. 4912a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = getCorrespondingUnsignedType(lhsSigned ? lhs : rhs); 4913a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4914a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return destType; 4915a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 4916