ASTContext.cpp revision af7b44d847d3e44c43346d508b2e55a6254b6e9d
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" 2585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 266fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.h" 27557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner#include "llvm/Support/MemoryBuffer.h" 2829445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson#include "RecordLayoutBuilder.h" 2929445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3661710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 3761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner TargetInfo &t, 38e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 391b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner Builtin::Context &builtins, 401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool FreeMem, unsigned size_reserve) : 411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 42782fa308a765aeac2acb39c4e697c937ec21185bMike Stump ObjCFastEnumerationStateTypeDecl(0), FILEDecl(0), jmp_bufDecl(0), 43adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump sigjmp_bufDecl(0), BlockDescriptorType(0), SourceMgr(SM), LangOpts(LOpts), 441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump LoadedExternalComments(false), FreeMemory(FreeMem), Target(t), 452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Idents(idents), Selectors(sels), 461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BuiltinInfo(builtins), ExternalSource(0), PrintingPolicy(LOpts) { 470f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCIdRedefinitionType = QualType(); 480f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCClassRedefinitionType = QualType(); 491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (size_reserve > 0) Types.reserve(size_reserve); 50e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 5114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff InitBuiltinTypes(); 52e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 53e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 574b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 60b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 61b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::FoldingSet<ExtQuals>::iterator 630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall I = ExtQualNodes.begin(), E = ExtQualNodes.end(); 640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall while (I != E) 650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Deallocate(&*I++); 660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall { 69b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 72b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 73b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 74b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 75b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 76b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 77b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 78b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>::iterator 79b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar I = ObjCLayouts.begin(), E = ObjCLayouts.end(); 80b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 81b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 82b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 83b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 84b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 85b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 86ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 871ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 881ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNSEnd = NestedNameSpecifiers.end(); 901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS != NNSEnd; 911ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor /* Increment in loop */) 921ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 93ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 94ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 95ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 96ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 97b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 1012cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 1022cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 1032cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 1042cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 1087c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 109dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 1101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump#define TYPE(Name, Parent) 0, 111dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 112dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 113dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 114dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 115c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 118dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 121dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 122dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 123dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 124dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 125dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 126dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 127dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 128dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 129dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 1301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 131dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1322cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1332cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1342cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1352cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1362cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 1416b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BuiltinType *Ty = new (*this, TypeAlignment) BuiltinType(K); 1426b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall R = QualType(Ty, 0); 1436b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Types.push_back(Ty); 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 15515b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 17764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1782df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1792df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1802df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1812df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1823a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1833a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1843a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1853a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 18664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 187f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 188f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char16Ty, BuiltinType::Char16); 189f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 190f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16Ty = getFromTargetType(Target.getChar16Type()); 191f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 192f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 193f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char32Ty, BuiltinType::Char32); 194f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 195f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32Ty = getFromTargetType(Target.getChar32Type()); 196f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 1978e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 198898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 199898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 200898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 201898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 202898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 203898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 204898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 205898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 2068e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Placeholder type for C++0x auto declarations whose real type has 208e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 209e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 2101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2158e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2167e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 2171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 218de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // "Builtin" typedefs set by Sema::ActOnTranslationUnitScope(). 219de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = QualType(); 220de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = QualType(); 2211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 222de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // Builtin types for 'id' and 'Class'. 223de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); 224de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); 22514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 226a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 2271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 22933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2306e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2316e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2326e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 235251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorMemberSpecializationInfo * 236663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas GregorASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) { 2377caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Var->isStaticDataMember() && "Not a static data member"); 238663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor llvm::DenseMap<const VarDecl *, MemberSpecializationInfo *>::iterator Pos 2397caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor = InstantiatedFromStaticDataMember.find(Var); 2407caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Pos == InstantiatedFromStaticDataMember.end()) 2417caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return 0; 2421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2437caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return Pos->second; 2447caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2457caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 247251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl, 248251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor TemplateSpecializationKind TSK) { 2497caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Inst->isStaticDataMember() && "Not a static data member"); 2507caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Tmpl->isStaticDataMember() && "Not a static data member"); 2517caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(!InstantiatedFromStaticDataMember[Inst] && 2527caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor "Already noted what static data member was instantiated from"); 253251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor InstantiatedFromStaticDataMember[Inst] 254251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor = new (*this) MemberSpecializationInfo(Tmpl, TSK); 2557caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2567caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2570d8df780aef1acda5962347a32591efc629b6748Anders CarlssonUnresolvedUsingDecl * 2580d8df780aef1acda5962347a32591efc629b6748Anders CarlssonASTContext::getInstantiatedFromUnresolvedUsingDecl(UsingDecl *UUD) { 2591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::DenseMap<UsingDecl *, UnresolvedUsingDecl *>::iterator Pos 2600d8df780aef1acda5962347a32591efc629b6748Anders Carlsson = InstantiatedFromUnresolvedUsingDecl.find(UUD); 2610d8df780aef1acda5962347a32591efc629b6748Anders Carlsson if (Pos == InstantiatedFromUnresolvedUsingDecl.end()) 2620d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return 0; 2631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2640d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return Pos->second; 2650d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2660d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 2670d8df780aef1acda5962347a32591efc629b6748Anders Carlssonvoid 2680d8df780aef1acda5962347a32591efc629b6748Anders CarlssonASTContext::setInstantiatedFromUnresolvedUsingDecl(UsingDecl *UD, 2690d8df780aef1acda5962347a32591efc629b6748Anders Carlsson UnresolvedUsingDecl *UUD) { 2700d8df780aef1acda5962347a32591efc629b6748Anders Carlsson assert(!InstantiatedFromUnresolvedUsingDecl[UD] && 2710d8df780aef1acda5962347a32591efc629b6748Anders Carlsson "Already noted what using decl what instantiated from"); 2720d8df780aef1acda5962347a32591efc629b6748Anders Carlsson InstantiatedFromUnresolvedUsingDecl[UD] = UUD; 2730d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2740d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 275d8b285fee4471f393da8ee30f552ceacdc362afaAnders CarlssonFieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { 276d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos 277d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson = InstantiatedFromUnnamedFieldDecl.find(Field); 278d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson if (Pos == InstantiatedFromUnnamedFieldDecl.end()) 279d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return 0; 2801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 281d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return Pos->second; 282d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 283d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 284d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlssonvoid ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, 285d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson FieldDecl *Tmpl) { 286d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed"); 287d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Tmpl->getDeclName() && "Template field decl is not unnamed"); 288d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!InstantiatedFromUnnamedFieldDecl[Inst] && 289d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson "Already noted what unnamed field was instantiated from"); 2901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 291d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; 292d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 293d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 2942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregornamespace { 2951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump class BeforeInTranslationUnit 2962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor : std::binary_function<SourceRange, SourceRange, bool> { 2972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceManager *SourceMgr; 2981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor public: 3002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 3011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool operator()(SourceRange X, SourceRange Y) { 3032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 3042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor }; 3062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 3072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Determine whether the given comment is a Doxygen-style comment. 3092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Start the start of the comment text. 3112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param End the end of the comment text. 3132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Member whether we want to check whether this is a member comment 3152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// (which requires a < after the Doxygen-comment delimiter). Otherwise, 3162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// we only return true when we find a non-member comment. 3171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic bool 3181eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpisDoxygenComment(SourceManager &SourceMgr, SourceRange Comment, 3192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool Member = false) { 3201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *BufferStart 3212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(SourceMgr.getFileID(Comment.getBegin())).first; 3222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *Start = BufferStart + SourceMgr.getFileOffset(Comment.getBegin()); 3232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char* End = BufferStart + SourceMgr.getFileOffset(Comment.getEnd()); 3241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (End - Start < 4) 3262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor assert(Start[0] == '/' && "Not a comment?"); 3292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '*' && !(Start[2] == '!' || Start[2] == '*')) 3302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '/' && !(Start[2] == '!' || Start[2] == '/')) 3322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return (Start[3] == '<') == Member; 3352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 3362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Retrieve the comment associated with the given declaration, if 3381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// it has one. 3392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorconst char *ASTContext::getCommentForDecl(const Decl *D) { 3402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!D) 3412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check whether we have cached a comment string for this declaration 3442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // already. 3451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::DenseMap<const Decl *, std::string>::iterator Pos 3462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = DeclComments.find(D); 3472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Pos != DeclComments.end()) 3482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Pos->second.c_str(); 3492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If we have an external AST source and have not yet loaded comments from 3512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // that source, do so now. 3522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (ExternalSource && !LoadedExternalComments) { 3532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange> LoadedComments; 3542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExternalSource->ReadComments(LoadedComments); 3551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!LoadedComments.empty()) 3572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Comments.insert(Comments.begin(), LoadedComments.begin(), 3582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedComments.end()); 3591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments = true; 3612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If there are no comments anywhere, we won't find anything. 3642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Comments.empty()) 3652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the declaration doesn't map directly to a location in a file, we 3682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // can't find the comment. 3692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceLocation DeclStartLoc = D->getLocStart(); 3702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartLoc.isInvalid() || !DeclStartLoc.isFileID()) 3712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Find the comment that occurs just before this declaration. 3742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator LastComment 3751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = std::lower_bound(Comments.begin(), Comments.end(), 3762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceRange(DeclStartLoc), 3772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor BeforeInTranslationUnit(&SourceMgr)); 3781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the location for the start of the declaration and find the 3802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // beginning of the file buffer. 3811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<FileID, unsigned> DeclStartDecomp 3822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(DeclStartLoc); 3831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *FileBufferStart 3842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(DeclStartDecomp.first).first; 3851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // First check whether we have a comment for a member. 3872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment != Comments.end() && 3882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor !isa<TagDecl>(D) && !isa<NamespaceDecl>(D) && 3892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor isDoxygenComment(SourceMgr, *LastComment, true)) { 3902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 3912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 3922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first == LastCommentEndDecomp.first && 3932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second) 3941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump == SourceMgr.getLineNumber(LastCommentEndDecomp.first, 3952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second)) { 3962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The Doxygen member comment comes after the declaration starts and 3972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is on the same line and in the same file as the declaration. This 3982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is the comment we want. 3992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 4001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 4011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 4022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 4032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 4042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment == Comments.begin()) 4082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --LastComment; 4102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the end of the comment. 4122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 4132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 4141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment and the declaration aren't in the same file, then they 4162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // aren't related. 4172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first != LastCommentEndDecomp.first) 4182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check that we actually have a Doxygen comment. 4212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *LastComment)) 4222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Compute the starting line for the declaration and for the end of the 4252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // comment (this is expensive). 4261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned DeclStartLine 4272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second); 4282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned CommentEndLine 4291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = SourceMgr.getLineNumber(LastCommentEndDecomp.first, 4302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second); 4311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment does not end on the line prior to the declaration, then 4332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // the comment is not associated with the declaration at all. 4342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (CommentEndLine + 1 != DeclStartLine) 4352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // We have a comment, but there may be more comments on the previous lines. 4382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Keep looking so long as the comments are still Doxygen comments and are 4392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // still adjacent. 4401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ExpectedLine 4412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(LastComment->getBegin()) - 1; 4422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator FirstComment = LastComment; 4432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != Comments.begin()) { 4442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Look at the previous comment 4452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --FirstComment; 4462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> Decomp 4472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this previous comment is in a different file, we're done. 4502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Decomp.first != DeclStartDecomp.first) { 4512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this comment is not a Doxygen comment, we're done. 4562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *FirstComment)) { 4572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the line number is not what we expected, we're done. 4622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned Line = SourceMgr.getLineNumber(Decomp.first, Decomp.second); 4632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Line != ExpectedLine) { 4642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Set the next expected line number. 4691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExpectedLine 4702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(FirstComment->getBegin()) - 1; 4712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The iterator range [FirstComment, LastComment] contains all of the 4742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // BCPL comments that, together, are associated with this declaration. 4752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Form a single comment block string for this declaration that concatenates 4762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // all of these comments. 4772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 4782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != LastComment) { 4792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompStart 4802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getBegin()); 4812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompEnd 4822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + DecompStart.second, 4842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + DecompEnd.second + 1); 4852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Append the last comment line. 4891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 4901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 4912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 4922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 4932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 4942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 495464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 496464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 497464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 498a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 499b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 500b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 501b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 502183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const BuiltinType *BT = T->getAs<BuiltinType>(); 503b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 504b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 505b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 506b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 507b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 508b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 509b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 510b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 511b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 512196efbf095d75180305a45f3033caa1003746604Mike Stump/// getDeclAlignInBytes - Return a conservative estimate of the alignment of the 513af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 514af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 515b7d0844c887a72064b624dc6df12cbe1441f69d0Daniel Dunbarunsigned ASTContext::getDeclAlignInBytes(const Decl *D) { 516dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 517dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 51840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 519dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, AA->getAlignment()); 520dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 521af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 522af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 5236217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType* RT = T->getAs<ReferenceType>()) { 5244cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 525f0930235ce58a91aa3b840bece9052f44d630536Anders Carlsson Align = Target.getPointerAlign(AS); 5264cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson } else if (!T->isIncompleteType() && !T->isFunctionType()) { 5274cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 528dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 529dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 530dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 531dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 532dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 533af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 534dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 535dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 536af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 537b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 538a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 539a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 5400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// 5410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// FIXME: Pointers into different addr spaces could have different sizes and 5420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// alignment requirements: getPointerInfo should take an AddrSpace, this 5430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// should take a QualType, &c. 544d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 5451d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 5465e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 5475e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 548a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 54972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 55072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 55118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 55272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 55372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 55418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 55572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 55672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 55724fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis case Type::ObjCProtocolList: 55824fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis assert(false && "Should not see protocol list types"); 55924fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis break; 56024fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 5615d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 5625d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 56318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 56418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 56518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 56618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 56718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 56872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 569fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 57018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 57118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 57218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 57318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 574fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 5751d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 5761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 57798be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 5789e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 579030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 580030d8846c7e520330007087e949f621989876e3aChris Lattner break; 5815c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 582213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 583030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 5841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> EltInfo = 58598be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 5869e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 5874bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 5886fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 5896fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 5906fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // FIXME: this should probably be a target property. 5916fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman Align = 1 << llvm::Log2_32_Ceil(Align); 592030d8846c7e520330007087e949f621989876e3aChris Lattner break; 593030d8846c7e520330007087e949f621989876e3aChris Lattner } 5945d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 5959e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 596a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 597692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 598d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 59918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 60018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 60118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 60218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 60318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 6046f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 6059e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 6069e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 6076f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 608692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 609692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 610692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 6116f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 6129e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 6139e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 6146f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 61564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 61664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 61764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 61864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 619f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char16: 620f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar16Width(); 621f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar16Align(); 622f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 623f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char32: 624f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar32Width(); 625f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar32Align(); 626f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 627692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 6286f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 6299e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 6309e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 6316f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 632692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 6336f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 6349e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 6359e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 6366f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 637692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 6386f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 6399e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 6409e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 6416f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 642692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 6436f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 6449e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 6459e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 6466f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 647ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 648ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 649ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 650ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 651ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 6526f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 6539e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 6549e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 6556f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6566f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 6575426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 6585426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 6596f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6606f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 6619e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 6629e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 6636f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6646e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 6656e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 6666e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 6671590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 668a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 669bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 670f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case Type::FixedWidthInt: 671f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: This isn't precisely correct; the width/alignment should depend 672f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // on the available types for the target 673f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Width = cast<FixedWidthIntType>(T)->getWidth(); 674736166b38235cf6d0ffb67638960d95fb2afcbd6Chris Lattner Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 675f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Align = Width; 676f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman break; 677d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 6785426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 679f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 6806f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 681485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 682485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 683485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 684485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 685485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 686485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 687f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 688f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 6895426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 690f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 691f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 692f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 6937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 6947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 6957ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 6965d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 6976f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 6986f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 699bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 700f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 7011cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // FIXME: This is ABI dependent. We use the Itanium C++ ABI. 7021cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // http://www.codesourcery.com/public/cxx-abi/abi.html#member-pointers 7031cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // If we ever want to support other ABIs this needs to be abstracted. 7041cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson 705f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 7061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> PtrDiffInfo = 7071cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 7081cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 709f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 710f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 7111cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 7121cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 713f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 7145d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 7155d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 7165d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 7171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> EltInfo = 71898be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 7199e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 7205d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 7215d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 7225d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 72344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 7241d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 72544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 72644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 72744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 72844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 72944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 73072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 73172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 7321d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 7331d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 7341d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 7358389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 7368389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 7378389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 7388389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 7391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7401d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 7417176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 7427176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 7431d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 7447176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 7457176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 7467176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 747dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 748a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 7497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 75049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall case Type::SubstTemplateTypeParm: { 75149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return getTypeInfo(cast<SubstTemplateTypeParmType>(T)-> 75249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall getReplacementType().getTypePtr()); 75349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 75449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 7557da2431c23ef1ee8acb114e39692246e1801afc2John McCall case Type::Elaborated: { 7567da2431c23ef1ee8acb114e39692246e1801afc2John McCall return getTypeInfo(cast<ElaboratedType>(T)->getUnderlyingType().getTypePtr()); 7577da2431c23ef1ee8acb114e39692246e1801afc2John McCall } 7587da2431c23ef1ee8acb114e39692246e1801afc2John McCall 75918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 76018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 76140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 76218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = Aligned->getAlignment(); 76318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 76418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 76518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 7667532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 7677176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 76818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 76918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 77018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 77118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 77218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 77318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 77418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 77518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 776395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 777395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 778395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 779395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 78018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 78118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 7821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 78318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 7841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(getCanonicalType(T) != T && 78518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 78618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 78718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 78818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 78918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 79018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 7911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 792464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 7939e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 794a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 795a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 79634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 79734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 79834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 79934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 80034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 80134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 8021eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 8031eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 804183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType* CT = T->getAs<ComplexType>()) 8051eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 8061eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 8071eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 8081eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 8091eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 81034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 81134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 81234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 813a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 814a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 815a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 816a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 817a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 818f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 819a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 820a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 821a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 822a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 823a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 824a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 825a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 826a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 827a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 828a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 829a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 830a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 8318e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 8328e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 8338e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 8348e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 8358e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 8368e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian bool CollectSynthesized) { 8378e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 8388e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 8398e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 8408e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8418e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (CollectSynthesized) 8428e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian CollectSynthesizedIvars(OI, Ivars); 8438e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8448e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8459820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 8469820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 84717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 84817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8499820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8509820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8529820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 8539820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8549820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8559820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 8569820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8579820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8589820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// CollectSynthesizedIvars - 8599820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// This routine collect synthesized ivars for the designated class. 8609820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 8619820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 8629820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 86317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 86417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 8659820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8669820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8679820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8689820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 8699820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 8709820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 8719820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 8729820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 8739820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 8749820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8759820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8769820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 8788e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 87917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 88017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 8828e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8838e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8848e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into nested protocols. 8858e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8868e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8878e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(*P); 8888e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 8898e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8908e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) { 8928e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 89317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 89417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 8958e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 8968e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8978e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8988e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into interface's protocol list for properties declared 8998e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // in the protocol and whose ivars are synthesized. 9008e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 9018e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 9028e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ObjCProtocolDecl *PD = (*P); 9038e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(PD); 9048e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 9058e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 9068e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 9078e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9088a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCInterfaceDecl,or NULL if none exists. 9098a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { 9108a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 9118a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 9128a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 9138a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCImplementationDecl>(I->second); 9148a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 9158a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9168a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCCategoryDecl, or NULL if none exists. 9178a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { 9188a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 9198a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 9208a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 9218a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCCategoryImplDecl>(I->second); 9228a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 9238a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9248a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 9258a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCInterfaceDecl. 9268a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, 9278a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImplementationDecl *ImplD) { 9288a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(IFaceD && ImplD && "Passed null params"); 9298a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[IFaceD] = ImplD; 9308a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9318a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCCategoryDecl. 9328a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, 9338a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCCategoryImplDecl *ImplD) { 9348a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(CatD && ImplD && "Passed null params"); 9358a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[CatD] = ImplD; 9368a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9378a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 938b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \brief Allocate an uninitialized DeclaratorInfo. 939b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 940b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// The caller should initialize the memory held by DeclaratorInfo using 941b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// the TypeLoc wrappers. 942b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 943b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \param T the type that will be the basis for type source info. This type 944b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// should refer to how the declarator was written in source code, not to 945b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// what type semantic analysis resolved the declarator to. 946109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCallDeclaratorInfo *ASTContext::CreateDeclaratorInfo(QualType T, 947109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall unsigned DataSize) { 948109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall if (!DataSize) 949109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall DataSize = TypeLoc::getFullDataSizeForType(T); 950109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall else 951109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall assert(DataSize == TypeLoc::getFullDataSizeForType(T) && 952109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall "incorrect data size provided to CreateDeclaratorInfo!"); 953109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall 954b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis DeclaratorInfo *DInfo = 955b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis (DeclaratorInfo*)BumpAlloc.Allocate(sizeof(DeclaratorInfo) + DataSize, 8); 956b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis new (DInfo) DeclaratorInfo(T); 957b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis return DInfo; 958b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis} 959b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis 960b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 961b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 962b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 963b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 964b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 96544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 966b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 967b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 968532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 969532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 97044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 9711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCContainerDecl *Key = 972d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 973d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 974d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 97544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 976453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 977453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 97829445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson unsigned FieldCount = D->ivar_size(); 9798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned SynthCount = CountSynthesizedIvars(D); 9808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian FieldCount += SynthCount; 981d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 982453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 983453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 984453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 9858e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 986453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 987453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 988453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 9891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 99029445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D, Impl); 99129445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ObjCLayouts[Key] = NewEntry; 9921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 99344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 99444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 99544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 996b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 997b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 998b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 999b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1000b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 1001b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1002b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 1003b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 1004b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1005b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 100688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 1007464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 1008464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 100998be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 10104b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 10114b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 10124bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 1013464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 1014ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // Note that we can't save a reference to the entry because this function 1015ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // is recursive. 1016ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman const ASTRecordLayout *Entry = ASTRecordLayouts[D]; 1017464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 10184bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 10191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 102029445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D); 1021ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman ASTRecordLayouts[D] = NewEntry; 10221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10235d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 1024464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 1025464175bba1318bef7905122e9fda20cff926df78Chris Lattner 1026a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1027a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 1028a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1029a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 10300953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getExtQualType(const Type *TypeNode, Qualifiers Quals) { 10310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned Fast = Quals.getFastQualifiers(); 10320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeFastQualifiers(); 10330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Check if we've already instantiated this type. 10350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::FoldingSetNodeID ID; 10360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQuals::Profile(ID, TypeNode, Quals); 10370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void *InsertPos = 0; 10380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ExtQuals *EQ = ExtQualNodes.FindNodeOrInsertPos(ID, InsertPos)) { 10390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(EQ->getQualifiers() == Quals); 10400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(EQ, Fast); 10410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 10420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 10430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10446b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtQuals *New = new (*this, TypeAlignment) ExtQuals(*this, TypeNode, Quals); 10450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQualNodes.InsertNode(New, InsertPos); 10460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(New, Fast); 10470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 10480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 10490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10500953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getVolatileType(QualType T) { 10510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanT = getCanonicalType(T); 10520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (CanT.isVolatileQualified()) return T; 10530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 10550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 10560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addVolatile(); 10570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 10590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 10600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1061f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 1062f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 1063f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 1064f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 1065b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 10660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 10670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 10680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 10690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 10701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an address space specified, it cannot get 10720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 10730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasAddressSpace() && 10740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot be in multiple addr spaces!"); 10750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addAddressSpace(AddressSpace); 10761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1078ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 1079ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1080b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 10810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr) { 1082d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 1083b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 1084d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 10851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10864027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 10876217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 108858f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff if (Pointee->isAnyPointerType()) { 10894027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 10904027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 10914027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 10924027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 10931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 10950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 10960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 10970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 10981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an ObjCGC specified, it cannot get 11000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 11010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasObjCGCAttr() && 11020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot have multiple ObjCGCs!"); 11030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addObjCGCAttr(GCAttr); 11041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1106d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1107a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 11082455636163fdd18581d7fdae816433f886d88213Mike StumpQualType ASTContext::getNoReturnType(QualType T) { 11090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType ResultType; 11102455636163fdd18581d7fdae816433f886d88213Mike Stump if (T->isPointerType()) { 11116217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 11120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType = getNoReturnType(Pointee); 11136dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType = getPointerType(ResultType); 11140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else if (T->isBlockPointerType()) { 11156217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<BlockPointerType>()->getPointeeType(); 11160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType = getNoReturnType(Pointee); 11176dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType = getBlockPointerType(ResultType); 11180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else { 11190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert (T->isFunctionType() 11200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall && "can't noreturn qualify non-pointer to function or block type"); 11211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1122bdbeeb50c5d182c591bd8797dc0485921df19e9dBenjamin Kramer if (const FunctionNoProtoType *FNPT = T->getAs<FunctionNoProtoType>()) { 1123bdbeeb50c5d182c591bd8797dc0485921df19e9dBenjamin Kramer ResultType = getFunctionNoProtoType(FNPT->getResultType(), true); 11240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else { 11250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const FunctionProtoType *F = T->getAs<FunctionProtoType>(); 11260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType 11270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall = getFunctionType(F->getResultType(), F->arg_type_begin(), 11280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall F->getNumArgs(), F->isVariadic(), F->getTypeQuals(), 11290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall F->hasExceptionSpec(), F->hasAnyExceptionSpec(), 11300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall F->getNumExceptions(), F->exception_begin(), true); 11310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 11322455636163fdd18581d7fdae816433f886d88213Mike Stump } 11330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getQualifiedType(ResultType, T.getQualifiers()); 11352455636163fdd18581d7fdae816433f886d88213Mike Stump} 11362455636163fdd18581d7fdae816433f886d88213Mike Stump 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 11441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 11481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 11505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 1153f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 11541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1157f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11596b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ComplexType *New = new (*this, TypeAlignment) ComplexType(T, Canonical); 11605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 11625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1165f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 1166f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 1167f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 1168f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 1169f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 1170f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 1171f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 1172f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 11765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 11811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 11851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 1190f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 11911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1194f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11966b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall PointerType *New = new (*this, TypeAlignment) PointerType(T, Canonical); 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 11995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getBlockPointerType - Return the uniqued reference to the type for 12035618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 12045618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1205296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1206296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 12075618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 12085618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 12095618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 12101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12115618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 12125618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 12135618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 12145618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 12151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the block pointee type isn't canonical, this won't be a canonical 12175618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 12185618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 12195618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 12205618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 12211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12225618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 12235618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 12245618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1225f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12265618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 12276b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BlockPointerType *New 12286b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) BlockPointerType(T, Canonical); 12295618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 12305618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 12315618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 12325618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 12335618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 12347c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 12357c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 12367c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getLValueReferenceType(QualType T) { 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 12405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 12415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12437c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 12447c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 12467c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 12485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 12495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 12517c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getLValueReferenceType(getCanonicalType(T)); 12527c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12537c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 12547c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 12557c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 12567c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12577c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 12587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12596b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall LValueReferenceType *New 12606b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) LValueReferenceType(T, Canonical); 12617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 12627c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 12637c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 12647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 12657c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 12677c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 12687c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 12697c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 12707c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 12717c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 12727c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ReferenceType::Profile(ID, T); 12737c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12747c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 12757c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 12767c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12777c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 12787c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 12807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 12817c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 12827c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (!T->isCanonical()) { 12837c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getRValueReferenceType(getCanonicalType(T)); 12847c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 12877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1288f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12916b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall RValueReferenceType *New 12926b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); 12935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 12955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1298f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1299f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 13001eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) { 1301f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1302f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1303f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1304f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1305f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1306f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1307f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1308f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1309f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1310f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1311f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1312f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1313f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 1314f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (!T->isCanonical()) { 1315f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1316f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1317f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1318f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1319f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1320f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1321f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 13226b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall MemberPointerType *New 13236b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); 1324f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1325f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1326f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1327f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1328f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 13291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getConstantArrayType - Return the unique reference to the type for an 1330fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 13311eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getConstantArrayType(QualType EltTy, 133238aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1333c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1334c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1335587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman assert((EltTy->isDependentType() || EltTy->isConstantSizeType()) && 1336587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1337587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 133838aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 133938aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 134038aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 134138aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 13421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 13440be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 13451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ConstantArrayType *ATP = 13487192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 13495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 13501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 13525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 13535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 13545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 13551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1356c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 13575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ConstantArrayType *NewIP = 13597192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1360f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13636b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType *New = new(*this,TypeAlignment) 13646b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 13657192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 13665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1370bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1371bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 13727e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 13737e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1374c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 13757e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 13767e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1377c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1378c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1379c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 13806b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType *New = new(*this, TypeAlignment) 13816b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType(EltTy, QualType(), NumElts, ASM, EltTypeQuals, Brackets); 1382c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1383c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1384c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1385c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1386c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1387c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1388898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1389898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 139004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor/// type. 13917e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 13927e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1393898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 13947e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 13957e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 13961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 1397898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1398898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 139904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor llvm::FoldingSetNodeID ID; 14001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedArrayType::Profile(ID, *this, getCanonicalType(EltTy), ASM, 140104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor EltTypeQuals, NumElts); 1402898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 140304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor void *InsertPos = 0; 140404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *Canon 140504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 140604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *New; 140704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (Canon) { 140804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // We already have a canonical version of this array type; use it as 140904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // the canonical type for a newly-built type. 14106b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14116b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(Canon, 0), 14126b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 141304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 141404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType CanonEltTy = getCanonicalType(EltTy); 141504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (CanonEltTy == EltTy) { 14166b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14176b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(), 14186b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 141904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayTypes.InsertNode(New, InsertPos); 142004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 142104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType Canon = getDependentSizedArrayType(CanonEltTy, NumElts, 142204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor ASM, EltTypeQuals, 142304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor SourceRange()); 14246b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14256b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, Canon, 14266b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 142704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 142804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 14291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1430898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1431898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1432898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1433898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1434c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1435c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1436c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1437c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 14380be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1439c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1440c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 14411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (IncompleteArrayType *ATP = 1442c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1443c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1444c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1445c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1446c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1447c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1448c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1449c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 1450f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 14512bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1452c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1453c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1454c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1455c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1456f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14572bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1458c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 14596b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType *New = new (*this, TypeAlignment) 14606b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType(EltTy, Canonical, ASM, EltTypeQuals); 1461c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1462c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1463c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1464c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1465fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1466fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 146773322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 146873322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 146973322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 14705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 14711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1472f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 147373322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 14741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 14765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 14771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VectorType::Profile(ID, vecType, NumElts, Type::Vector); 14785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 14795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 14805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 14815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 14835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 14845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 14855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 1486f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 14871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 14895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1490f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14926b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType *New = new (*this, TypeAlignment) 14936b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType(vecType, NumElts, Canonical); 14945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 14955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 14965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 14975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1499213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 150073322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1501213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 150273322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 15031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1504f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1505213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 15061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 150773322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 150873322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 15091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 151073322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 151173322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 151273322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 151373322924127c873c13101b705dd823f5539ffa5fSteve Naroff 151473322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 151573322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 151673322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 151773322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 1518213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 15191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 152073322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 152173322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1522f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 152373322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 15246b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType *New = new (*this, TypeAlignment) 15256b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType(vecType, NumElts, Canonical); 152673322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 152773322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 152873322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 152973322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 153073322924127c873c13101b705dd823f5539ffa5fSteve Naroff 15311eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 15329cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 15339cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 15342ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor llvm::FoldingSetNodeID ID; 15351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), 15362ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr); 15371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15382ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor void *InsertPos = 0; 15392ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *Canon 15402ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 15412ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *New; 15422ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (Canon) { 15432ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // We already have a canonical version of this array type; use it as 15442ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // the canonical type for a newly-built type. 15456b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15466b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), 15476b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall SizeExpr, AttrLoc); 15482ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 15492ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType CanonVecTy = getCanonicalType(vecType); 15502ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (CanonVecTy == vecType) { 15516b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15526b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, 15536b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall AttrLoc); 15542ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorTypes.InsertNode(New, InsertPos); 15552ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 15562ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType Canon = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, 15572ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SourceLocation()); 15586b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15596b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, Canon, SizeExpr, AttrLoc); 15602ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 15612ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 15621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15639cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 15649cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 15659cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 15669cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 156772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 15685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 15692455636163fdd18581d7fdae816433f886d88213Mike StumpQualType ASTContext::getFunctionNoProtoType(QualType ResultTy, bool NoReturn) { 15705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 15715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 15725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 15732455636163fdd18581d7fdae816433f886d88213Mike Stump FunctionNoProtoType::Profile(ID, ResultTy, NoReturn); 15741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 15761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionNoProtoType *FT = 157772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 15785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 15791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 15815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 15822455636163fdd18581d7fdae816433f886d88213Mike Stump Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy), NoReturn); 15831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 158572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 158672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1587f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15906b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType *New = new (*this, TypeAlignment) 15916b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType(ResultTy, Canonical, NoReturn); 15925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 159372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 15945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 15955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 15985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 159961710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1600971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1601465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1602465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 16032455636163fdd18581d7fdae816433f886d88213Mike Stump const QualType *ExArray, bool NoReturn) { 160483913e36c847052966d9ff60d760ea7231ed8b6bAnders Carlsson if (LangOpts.CPlusPlus) { 160583913e36c847052966d9ff60d760ea7231ed8b6bAnders Carlsson for (unsigned i = 0; i != NumArgs; ++i) 16060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!ArgArray[i].hasQualifiers() && 16070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "C++ arguments can't have toplevel qualifiers!"); 160883913e36c847052966d9ff60d760ea7231ed8b6bAnders Carlsson } 160983913e36c847052966d9ff60d760ea7231ed8b6bAnders Carlsson 16105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 16115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 16125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 161372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1614465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 16152455636163fdd18581d7fdae816433f886d88213Mike Stump NumExs, ExArray, NoReturn); 16165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionProtoType *FTP = 161972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 16205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1621465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1622465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 16235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 1624465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl if (hasExceptionSpec) 1625465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl isCanonical = false; 16265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 16275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 16285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 16295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1631465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 16325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 16335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 16345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 16355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 16365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1637f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 1638465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1639f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1640beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 164147259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor isVariadic, TypeQuals, false, 164247259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor false, 0, 0, NoReturn); 1643465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 16445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 164572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 164672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1647f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1649465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 165072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1651465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1652465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 16531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FunctionProtoType *FTP = 1654465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1655465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 16566b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumExs*sizeof(QualType), TypeAlignment); 165772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1658465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 16592455636163fdd18581d7fdae816433f886d88213Mike Stump ExArray, NumExs, Canonical, NoReturn); 16605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 166172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 16635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16652ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 16662ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 16674b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 16681e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 16692ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 16701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16711e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 16722ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1673fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1674fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 16759fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (ObjCInterfaceDecl *ObjCInterface 16769fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump = dyn_cast<ObjCInterfaceDecl>(Decl)) 16772ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 167849aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1679c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1680566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1681566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1682f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 16836b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) RecordType(Record); 16849fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1685566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1686566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1687f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 16886b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) EnumType(Enum); 16899fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else 16902ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 169149aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 16924b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 169349aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 16942ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 16952ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 16965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 16975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 16985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 16995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 17001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1701f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 17026b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new(*this, TypeAlignment) 17036b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypedefType(Type::Typedef, Decl, Canonical); 17045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 17055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 17065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 170849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// \brief Retrieve a substitution-result type. 170949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallQualType 171049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallASTContext::getSubstTemplateTypeParmType(const TemplateTypeParmType *Parm, 171149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType Replacement) { 171249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall assert(Replacement->isCanonical() 171349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall && "replacement types must always be canonical"); 171449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 171549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall llvm::FoldingSetNodeID ID; 171649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType::Profile(ID, Parm, Replacement); 171749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall void *InsertPos = 0; 171849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType *SubstParm 171949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall = SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 172049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 172149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall if (!SubstParm) { 172249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstParm = new (*this, TypeAlignment) 172349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType(Parm, Replacement); 172449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall Types.push_back(SubstParm); 172549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos); 172649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 172749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 172849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return QualType(SubstParm, 0); 172949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall} 173049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 1731fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 17321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parameter or parameter pack with the given depth, index, and (optionally) 173376e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 17341eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 173576e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1736fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1737fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 173876e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1739fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 17401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateTypeParmType *TypeParm 1741fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1742fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1743fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1744fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 17451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 174676e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 174776e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 17486b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 17496b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack, Name, Canon); 175076e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 17516b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 17526b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack); 1753fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1754fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1755fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1756fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1757fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1758fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1759fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 17601eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 17617532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 17627532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 17637532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 17647532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 1765b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (!Canon.isNull()) 1766b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = getCanonicalType(Canon); 1767b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor else { 1768b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor // Build the canonical template specialization type. 17691275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateName CanonTemplate = getCanonicalTemplateName(Template); 17701275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::SmallVector<TemplateArgument, 4> CanonArgs; 17711275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.reserve(NumArgs); 17721275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor for (unsigned I = 0; I != NumArgs; ++I) 17731275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.push_back(getCanonicalTemplateArgument(Args[I])); 17741275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 17751275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Determine whether this canonical template specialization type already 17761275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // exists. 17771275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::FoldingSetNodeID ID; 17781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType::Profile(ID, CanonTemplate, 1779828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor CanonArgs.data(), NumArgs, *this); 17801275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 17811275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor void *InsertPos = 0; 17821275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateSpecializationType *Spec 17831275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 17841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17851275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor if (!Spec) { 17861275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate a new canonical template specialization type. 17871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 17881275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor sizeof(TemplateArgument) * NumArgs), 17896b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 17901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Spec = new (Mem) TemplateSpecializationType(*this, CanonTemplate, 17911275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.data(), NumArgs, 1792b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon); 17931275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Types.push_back(Spec); 17941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 17951275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 17961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1797b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (Canon.isNull()) 1798b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = QualType(Spec, 0); 17991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(Canon->isDependentType() && 18001275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor "Non-dependent template-id type must have a canonical type"); 1801b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor } 1802fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 18031275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate the (non-canonical) template specialization type, but don't 18041275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // try to unique it: these types typically have location information that 18051275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // we don't unique and don't want to lose. 18061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 180740808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 18086b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 18091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType *Spec 18101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = new (Mem) TemplateSpecializationType(*this, Template, Args, NumArgs, 1811828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor Canon); 18121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 181355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 18141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(Spec, 0); 181555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 181655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 18171eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 1818ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1819e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1820e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1821ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1822e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1823e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 18241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualifiedNameType *T 1825e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1826e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1827e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1828e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 18291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T = new (*this) QualifiedNameType(NNS, NamedType, 1830ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1831e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1832e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1833e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1834e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1835e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 18361eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1837d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1838d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1839d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1840d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1841d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1842d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1843d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1844d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1845d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1846d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1847d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1848d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1849d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1850d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 18511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypenameType *T 1852d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1853d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1854d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1855d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1856d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1857d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1858d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 18591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 1860d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1861d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 18621eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 18631eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpASTContext::getTypenameType(NestedNameSpecifier *NNS, 18641734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 18651734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 18661734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 18671734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18681734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 18691734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 18701734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 18711734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 18721734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 1873183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall = CanonType->getAs<TemplateSpecializationType>(); 18741734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 18751734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 18761734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 18771734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 18781734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 18791734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18801734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 18811734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 18821734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18831734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 18841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypenameType *T 18851734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 18861734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 18871734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 18881734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18891734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 18901734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 18911734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 18921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 18931734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 18941734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18957da2431c23ef1ee8acb114e39692246e1801afc2John McCallQualType 18967da2431c23ef1ee8acb114e39692246e1801afc2John McCallASTContext::getElaboratedType(QualType UnderlyingType, 18977da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::TagKind Tag) { 18987da2431c23ef1ee8acb114e39692246e1801afc2John McCall llvm::FoldingSetNodeID ID; 18997da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::Profile(ID, UnderlyingType, Tag); 19001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19017da2431c23ef1ee8acb114e39692246e1801afc2John McCall void *InsertPos = 0; 19027da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 19037da2431c23ef1ee8acb114e39692246e1801afc2John McCall if (T) 19047da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 19057da2431c23ef1ee8acb114e39692246e1801afc2John McCall 19067da2431c23ef1ee8acb114e39692246e1801afc2John McCall QualType Canon = getCanonicalType(UnderlyingType); 19077da2431c23ef1ee8acb114e39692246e1801afc2John McCall 19087da2431c23ef1ee8acb114e39692246e1801afc2John McCall T = new (*this) ElaboratedType(UnderlyingType, Tag, Canon); 19097da2431c23ef1ee8acb114e39692246e1801afc2John McCall Types.push_back(T); 19107da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedTypes.InsertNode(T, InsertPos); 19117da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 19127da2431c23ef1ee8acb114e39692246e1801afc2John McCall} 19137da2431c23ef1ee8acb114e39692246e1801afc2John McCall 191488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 191588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 191688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 191788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 19182e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 191988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 192088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 192188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 192288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 192388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 19241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 192588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 192688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 192788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 192888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 192988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 193088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 193188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 193288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1933d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 1934d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 193514108da7f7fc059772711e4ffee1322a27b152a7Steve NaroffQualType ASTContext::getObjCObjectPointerType(QualType InterfaceT, 19361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCProtocolDecl **Protocols, 1937d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff unsigned NumProtocols) { 1938d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // Sort the protocol list alphabetically to canonicalize it. 1939d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (NumProtocols) 1940d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff SortAndUniqueProtocols(Protocols, NumProtocols); 1941d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1942d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff llvm::FoldingSetNodeID ID; 194314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ObjCObjectPointerType::Profile(ID, InterfaceT, Protocols, NumProtocols); 1944d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1945d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 1946d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (ObjCObjectPointerType *QT = 1947d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1948d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QT, 0); 1949d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1950d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // No Match; 19516b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ObjCObjectPointerType *QType = new (*this, TypeAlignment) 19526b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ObjCObjectPointerType(InterfaceT, Protocols, NumProtocols); 19531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1954d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 1955d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 1956d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QType, 0); 1957d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 195888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1959c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// getObjCInterfaceType - Return the unique reference to the type for the 1960c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// specified ObjC interface decl. The list of protocols is optional. 1961c15cb2af27514ecc879daba9aa01389c5203685dSteve NaroffQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, 1962a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 19631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (NumProtocols) 1964c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff // Sort the protocol list alphabetically to canonicalize it. 1965c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff SortAndUniqueProtocols(Protocols, NumProtocols); 19661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19674b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1968c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 19691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19704b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1971c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (ObjCInterfaceType *QT = 1972c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 19734b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 19741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19754b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 19766b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ObjCInterfaceType *QType = new (*this, TypeAlignment) 19776b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ObjCInterfaceType(const_cast<ObjCInterfaceDecl*>(Decl), 19786b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Protocols, NumProtocols); 19794b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1980c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.InsertNode(QType, InsertPos); 19814b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 19824b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 19834b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 198424fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios KyrtzidisQualType ASTContext::getObjCProtocolListType(QualType T, 198524fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis ObjCProtocolDecl **Protocols, 198624fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis unsigned NumProtocols) { 198724fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis llvm::FoldingSetNodeID ID; 198824fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis ObjCProtocolListType::Profile(ID, T, Protocols, NumProtocols); 198924fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 199024fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis void *InsertPos = 0; 199124fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis if (ObjCProtocolListType *QT = 199224fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis ObjCProtocolListTypes.FindNodeOrInsertPos(ID, InsertPos)) 199324fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis return QualType(QT, 0); 199424fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 199524fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis // No Match; 199624fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis ObjCProtocolListType *QType = new (*this, TypeAlignment) 199724fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis ObjCProtocolListType(T, Protocols, NumProtocols); 199824fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis Types.push_back(QType); 199924fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis ObjCProtocolListTypes.InsertNode(QType, InsertPos); 200024fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis return QualType(QType, 0); 200124fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis} 200224fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 200372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 200472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 20059752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 20061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// DeclRefExpr's. This doesn't effect the type checker, since it operates 20079752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 200872564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 2009dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType *toe; 2010b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (tofExpr->isTypeDependent()) { 2011b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor llvm::FoldingSetNodeID ID; 2012b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType::Profile(ID, *this, tofExpr); 20131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2014b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor void *InsertPos = 0; 2015b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType *Canon 2016b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); 2017b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (Canon) { 2018b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // We already have a "canonical" version of an identical, dependent 2019b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // typeof(expr) type. Use that as our canonical type. 20206b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, 2021b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor QualType((TypeOfExprType*)Canon, 0)); 2022b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2023b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor else { 2024b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // Build a new, canonical typeof(expr) type. 20256b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon 20266b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) DependentTypeOfExprType(*this, tofExpr); 2027b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); 2028b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor toe = Canon; 2029b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2030b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } else { 2031dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType Canonical = getCanonicalType(tofExpr->getType()); 20326b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, Canonical); 2033dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 20349752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 20359752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 2036d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2037d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 20389752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 20399752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 20409752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 20411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 20429752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 2043d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 2044f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 20456b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeOfType *tot = new (*this, TypeAlignment) TypeOfType(tofType, Canonical); 20469752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 20479752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 2048d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2049d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 205060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 205160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 205260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 2053a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 2054a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 20551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 205660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 205760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 205860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 205960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 206060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 206160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 206260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 206360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 206460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 206560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 206660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 206760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 206860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 206960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 207060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 20711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 207260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 20731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 207560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 207660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 207760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 20781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 207960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 208060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 208160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 2082395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 2083395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 2084395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 20851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 2086395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 2087395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 2088dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor DecltypeType *dt; 20899d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (e->isTypeDependent()) { 20909d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor llvm::FoldingSetNodeID ID; 20919d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType::Profile(ID, *this, e); 20921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20939d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor void *InsertPos = 0; 20949d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType *Canon 20959d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); 20969d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (Canon) { 20979d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // We already have a "canonical" version of an equivalent, dependent 20989d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // decltype type. Use that as our canonical type. 20996b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, DependentTy, 21009d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor QualType((DecltypeType*)Canon, 0)); 21019d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 21029d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor else { 21039d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // Build a new, canonical typeof(expr) type. 21046b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon = new (*this, TypeAlignment) DependentDecltypeType(*this, e); 21059d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeTypes.InsertNode(Canon, InsertPos); 21069d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor dt = Canon; 21079d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 21089d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } else { 2109dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType T = getDecltypeForExpr(e, *this); 21106b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, T, getCanonicalType(T)); 2111dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 2112395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 2113395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 2114395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 2115395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 21165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 21175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 2118e607ed068334bacb8d7b093996b4671c6ca79e25Mike StumpQualType ASTContext::getTagDeclType(const TagDecl *Decl) { 2119d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 2120e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // FIXME: What is the design on getTagDeclType when it requires casting 2121e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // away const? mutable? 2122e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump return getTypeDeclType(const_cast<TagDecl*>(Decl)); 21235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 21245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 21251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 21261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 21271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// needs to agree with the definition in <stddef.h>. 21285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 2129b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 21305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 21315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 213264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 213364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 213464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 213564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 213664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 213764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 213864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 213964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 214064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 214164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 214264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 214364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 214464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 214564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 21468b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 21478b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 21488b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 2149b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 21508b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 21518b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 2152e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2153e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 2154e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2155e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 215677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 215777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 215877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 215977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 216077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 216177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 216250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas GregorCanQualType ASTContext::getCanonicalType(QualType T) { 21630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 21640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ptr = Quals.strip(T); 21650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanType = Ptr->getCanonicalTypeInternal(); 21660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 21670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // The canonical internal type will be the canonical type *except* 21680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // that we push type qualifiers down through array types. 21691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If there are no new qualifiers to push down, stop here. 21710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!Quals.hasQualifiers()) 217250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(CanType); 2173c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 21740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the type qualifiers are on an array type, get the canonical 21750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type of the array with the qualifiers applied to the element 21760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type. 2177c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 2178c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 21790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return CanQualType::CreateUnsafe(getQualifiedType(CanType, Quals)); 21801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2181c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2182c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 21830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(AT->getElementType(), Quals); 2184c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 21851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2186c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 218750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 218850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getConstantArrayType(NewEltTy, CAT->getSize(), 218950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor CAT->getSizeModifier(), 21900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2191c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 219250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 219350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 21940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 21951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2196898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 219750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 219850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getDependentSizedArrayType(NewEltTy, 2199bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2200bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 220150d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getSizeModifier(), 22020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 220350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getBracketsRange())); 2204898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2205c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 220650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(getVariableArrayType(NewEltTy, 2207bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 2208bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr()->Retain() : 0, 220950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getSizeModifier(), 22100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 221150d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getBracketsRange())); 2212c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 2213c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 221425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 221525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 221625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 221725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 221897fbaa2a38804268a024f1a104b43fcf8b4411b0Argyrios Kyrtzidis return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); 221925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 22201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If this template name refers to a set of overloaded function templates, 2221d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor /// the canonical template name merely stores the set of function templates. 22226ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (OverloadedFunctionDecl *Ovl = Name.getAsOverloadedFunctionDecl()) { 22236ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor OverloadedFunctionDecl *CanonOvl = 0; 22246ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor for (OverloadedFunctionDecl::function_iterator F = Ovl->function_begin(), 22256ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor FEnd = Ovl->function_end(); 22266ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor F != FEnd; ++F) { 22276ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor Decl *Canon = F->get()->getCanonicalDecl(); 22286ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (CanonOvl || Canon != F->get()) { 22296ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (!CanonOvl) 22301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CanonOvl = OverloadedFunctionDecl::Create(*this, 22311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Ovl->getDeclContext(), 22326ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor Ovl->getDeclName()); 22331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22346ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor CanonOvl->addOverload( 22356ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor AnyFunctionDecl::getFromNamedDecl(cast<NamedDecl>(Canon))); 22366ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 22376ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 22381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22396ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor return TemplateName(CanonOvl? CanonOvl : Ovl); 22406ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 22411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 224225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 224325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 224425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 224525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 224625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 22471eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateArgument 22481275ae098acda31fe0e434510c729fcfed0458a1Douglas GregorASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) { 22491275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor switch (Arg.getKind()) { 22501275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Null: 22511275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 22521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22531275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Expression: 22541275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Build canonical expression? 22551275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 22561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22571275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Declaration: 22581275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(SourceLocation(), 22591275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Arg.getAsDecl()->getCanonicalDecl()); 22601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22611275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Integral: 22621275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(SourceLocation(), 22631275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor *Arg.getAsIntegral(), 22641275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getIntegralType())); 22651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22661275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Type: 22671275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(SourceLocation(), 22681275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getAsType())); 22691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22701275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Pack: { 22711275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Allocate in ASTContext 22721275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument *CanonArgs = new TemplateArgument[Arg.pack_size()]; 22731275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor unsigned Idx = 0; 22741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (TemplateArgument::pack_iterator A = Arg.pack_begin(), 22751275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor AEnd = Arg.pack_end(); 22761275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor A != AEnd; (void)++A, ++Idx) 22771275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs[Idx] = getCanonicalTemplateArgument(*A); 22781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22791275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument Result; 22801275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Result.setArgumentPack(CanonArgs, Arg.pack_size(), false); 22811275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Result; 22821275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 22831275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 22841275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 22851275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Silence GCC warning 22861275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor assert(false && "Unhandled template argument kind"); 22871275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(); 22881275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor} 22891275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 2290d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 2291d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 22921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!NNS) 2293d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2294d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2295d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 2296d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 2297d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 22981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 2299d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 2300d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 2301d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2302d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 2303d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 2304d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 2305d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 2306d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2307d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 2308d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 2309d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 23101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 0, 23111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 2312d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 2313d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2314d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2315d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 2316d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 2317d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2318d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2319d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2320d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2321d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2322d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2323d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2324c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2325c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2326c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 23270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T.hasQualifiers()) { 2328c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2329c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2330c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2331c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 23321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Handle the common negative case fast. 2334c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 23350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!isa<ArrayType>(CType)) 2336c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 23371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Apply any qualifiers from the array type to the element type. This 2339c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2340c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 23411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2342c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2343c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 234450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor // we must propagate them down into the element type. 23450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 23460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 23470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ty = Qs.strip(T.getDesugaredType()); 23481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2349c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2350c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 23510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ATy == 0 || Qs.empty()) 2352c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 23531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2354c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2355c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2356c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2357c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 23580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(ATy->getElementType(), Qs); 23591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2360c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2361c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2362c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 23630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2364c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2365c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2366c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 23670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 2368898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 23691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const DependentSizedArrayType *DSAT 2370898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2371898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 23721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getDependentSizedArrayType(NewEltTy, 2373bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2374bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 2375898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 23760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 23777e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 23781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2379c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 23807e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 2381bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 23820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getSizeExpr()->Retain() : 0, 2383c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 23840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 23857e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 238677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 238777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 238877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2389e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2390e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2391e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2392e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2393e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2394e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2395e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2396c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2397c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2398c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2399c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2400c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2401c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 24021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2403c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2404e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2405e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 24060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getQualifiedType(PtrTy, PrettyArrayType->getIndexTypeQualifiers()); 2407e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2408e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 24095e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas GregorQualType ASTContext::getBaseElementType(QualType QT) { 24100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 24115e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor while (true) { 24120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *UT = Qs.strip(QT); 24135e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor if (const ArrayType *AT = getAsArrayType(QualType(UT,0))) { 24145e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QT = AT->getElementType(); 24156dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump } else { 24160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qs.apply(QT); 24175e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 24185e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 24195e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor} 24205e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor 2421fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders CarlssonQualType ASTContext::getBaseElementType(const ArrayType *AT) { 2422fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson QualType ElemTy = AT->getElementType(); 24231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2424fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson if (const ArrayType *AT = getAsArrayType(ElemTy)) 2425fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson return getBaseElementType(AT); 24261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24276183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 24286183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 24296183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 24300de78998e7bda473b408437053e48661b510d453Fariborz Jahanian/// getConstantArrayElementCount - Returns number of constant array elements. 24311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpuint64_t 24320de78998e7bda473b408437053e48661b510d453Fariborz JahanianASTContext::getConstantArrayElementCount(const ConstantArrayType *CA) const { 24330de78998e7bda473b408437053e48661b510d453Fariborz Jahanian uint64_t ElementCount = 1; 24340de78998e7bda473b408437053e48661b510d453Fariborz Jahanian do { 24350de78998e7bda473b408437053e48661b510d453Fariborz Jahanian ElementCount *= CA->getSize().getZExtValue(); 24360de78998e7bda473b408437053e48661b510d453Fariborz Jahanian CA = dyn_cast<ConstantArrayType>(CA->getElementType()); 24370de78998e7bda473b408437053e48661b510d453Fariborz Jahanian } while (CA); 24380de78998e7bda473b408437053e48661b510d453Fariborz Jahanian return ElementCount; 24390de78998e7bda473b408437053e48661b510d453Fariborz Jahanian} 24400de78998e7bda473b408437053e48661b510d453Fariborz Jahanian 24415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 24425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2443a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2444183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) 24455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2446a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2447183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall assert(T->getAs<BuiltinType>() && "getFloatingRank(): not a floating type"); 2448183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall switch (T->getAs<BuiltinType>()->getKind()) { 2449a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 24505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 24515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 24525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 24535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 24555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 24571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// point or a complex type (based on typeDomain/typeSize). 2458716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2459716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 24601361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 24611361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 24621361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 24631361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 24641361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2465716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2466f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2467f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2468f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2469f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2470f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 24711361b11066239ea15764a2a844405352d87296b3Chris Lattner 24721361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 24731361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 24741361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 24751361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 24761361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 24771361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 24785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 24805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24817cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 24827cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 24837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 24841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 2485a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2486a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2487a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 24881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2489a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2490fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2491a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2492fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2493fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 24945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 24955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2496f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2497f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2498f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2499f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2500f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 2501f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2502f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman T = ET->getDecl()->getIntegerType().getTypePtr(); 2503f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2504a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2505a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2506a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2507f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2508f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2509f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2510f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2511f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2512f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2513f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 2514f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 2515f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 25161b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) 2517f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 2518f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2519f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 25207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 25217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2522f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 25237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 25247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 25257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 25267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2527f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 25287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 25297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2530f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 25317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 25327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2533f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 25347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 25357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2536f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 25377cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 25387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2539f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 25402df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 25412df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 25422df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2543f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2544f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2545f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 254604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \brief Whether this is a promotable bitfield reference according 254704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// to C99 6.3.1.1p2, bullet 2 (and GCC extensions). 254804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// 254904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \returns the type this bit-field will promote to, or NULL if no 255004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// promotion occurs. 255104e8357f6801e9ff52673e7e899a67bbabf9de93Eli FriedmanQualType ASTContext::isPromotableBitField(Expr *E) { 255204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman FieldDecl *Field = E->getBitField(); 255304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (!Field) 255404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 255504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 255604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman QualType FT = Field->getType(); 255704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 255804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman llvm::APSInt BitWidthAP = Field->getBitWidth()->EvaluateAsInt(*this); 255904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t BitWidth = BitWidthAP.getZExtValue(); 256004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 256104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // GCC extension compatibility: if the bit-field size is less than or equal 256204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // to the size of int, it gets promoted no matter what its type is. 256304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // For instance, unsigned long bf : 4 gets promoted to signed int. 256404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth < IntSize) 256504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return IntTy; 256604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 256704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth == IntSize) 256804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return FT->isSignedIntegerType() ? IntTy : UnsignedIntTy; 256904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 257004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // Types bigger than int are not subject to promotions, and therefore act 257104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // like the base type. 257204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // FIXME: This doesn't quite match what gcc does, but what gcc does here 257304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // is ridiculous. 257404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 257504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman} 257604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 2577a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// getPromotedIntegerType - Returns the type that Promotable will 2578a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// promote to: C99 6.3.1.1p2, assuming that Promotable is a promotable 2579a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// integer type. 2580a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType ASTContext::getPromotedIntegerType(QualType Promotable) { 2581a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(!Promotable.isNull()); 2582a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isPromotableIntegerType()); 2583a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (Promotable->isSignedIntegerType()) 2584a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return IntTy; 2585a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t PromotableSize = getTypeSize(Promotable); 2586a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 2587a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize); 2588a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return (PromotableSize != IntSize) ? IntTy : UnsignedIntTy; 2589a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 2590a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 25911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getIntegerTypeOrder - Returns the highest ranked integer type: 25927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 25931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 25947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2595f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2596f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 25977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 25981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2599f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2600f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 26011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 26037cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 26041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26057cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 26067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 26077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 26087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 26091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 26117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 26127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 26137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 26147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 26151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 26177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 26181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 26197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 26207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 26217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 26227cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 26237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 26247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 26251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 26277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 26281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 26297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 26305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 263171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 26321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// getCFConstantStringType - Return the type used for constant CFStrings. 263371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 263471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 26351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CFConstantStringTypeDecl = 26361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2637df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 2638f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 26391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 264071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 26410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[0] = getPointerType(IntTy.withConst()); 2642f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2643f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 264471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 26450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[2] = getPointerType(CharTy.withConst()); 264671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 26471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[3] = LongTy; 26481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 264944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 265044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 26511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 265244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 2653a1d5662d96465f0fddf8819d245da4d19b892effArgyrios Kyrtzidis FieldTypes[i], /*DInfo=*/0, 26541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 26554afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 265617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 265744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 265844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 265944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 266071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 26611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 266271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 26638467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2664b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2665319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 26666217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2667319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2668319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2669319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2670319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 26711eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getObjCFastEnumerationStateType() { 2672bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 267344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 267444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 267544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 26761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2677bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2678bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2679de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff getPointerType(ObjCIdTypedefType), 2680bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2681bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2682bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2683bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 26841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 268544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 26861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, 26871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCFastEnumerationStateTypeDecl, 26881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation(), 0, 2689a1d5662d96465f0fddf8819d245da4d19b892effArgyrios Kyrtzidis FieldTypes[i], /*DInfo=*/0, 26901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 26914afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 269217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 269344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 26941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 269544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2696bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 26971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2698bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2699bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2700bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2701adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike StumpQualType ASTContext::getBlockDescriptorType() { 2702adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump if (BlockDescriptorType) 2703adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 2704adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2705adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 2706adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Needs the FlagAppleBlock bit. 2707adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T = RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2708adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get("__block_descriptor")); 2709adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2710adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 2711adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2712adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2713adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2714adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2715adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 2716adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "reserved", 2717adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "Size", 2718adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2719adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2720adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 2; ++i) { 2721adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldDecl *Field = FieldDecl::Create(*this, 2722adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T, 2723adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump SourceLocation(), 2724adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 2725adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldTypes[i], /*DInfo=*/0, 2726adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*BitWidth=*/0, 2727adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*Mutable=*/false); 2728adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 2729adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 2730adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2731adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->completeDefinition(*this); 2732adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2733adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = T; 2734adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2735adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 2736adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 2737adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2738adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stumpvoid ASTContext::setBlockDescriptorType(QualType T) { 2739adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const RecordType *Rec = T->getAs<RecordType>(); 2740adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump assert(Rec && "Invalid BlockDescriptorType"); 2741adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = Rec->getDecl(); 2742adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 2743adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2744af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stumpbool ASTContext::BlockRequiresCopying(QualType Ty) { 2745af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isBlockPointerType()) 2746af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 2747af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (isObjCNSObjectType(Ty)) 2748af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 2749af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isObjCObjectPointerType()) 2750af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 2751af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return false; 2752af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump} 2753af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2754af7b44d847d3e44c43346d508b2e55a6254b6e9dMike StumpQualType ASTContext::BuildByRefType(const char *DeclName, QualType Ty) { 2755af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // type = struct __Block_byref_1_X { 2756ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // void *__isa; 2757af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // struct __Block_byref_1_X *__forwarding; 2758ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __flags; 2759ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __size; 2760af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // void *__copy_helper; 2761af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // void *__destroy_helper; 2762af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // int X; 2763ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // } * 2764ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2765af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump bool HasCopyAndDispose = BlockRequiresCopying(Ty); 2766af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2767af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // FIXME: Move up 2768af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump static int UniqueBlockByRefTypeID = 0; 2769af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump char Name[36]; 2770af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump sprintf(Name, "__Block_byref_%d_%s", ++UniqueBlockByRefTypeID, DeclName); 2771af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump RecordDecl *T; 2772af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T = RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2773af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump &Idents.get(Name)); 2774af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->startDefinition(); 2775af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType Int32Ty = IntTy; 2776af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump assert(getIntWidth(IntTy) == 32 && "non-32bit int not supported"); 2777af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType FieldTypes[] = { 2778af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 2779af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(getTagDeclType(T)), 2780af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 2781af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 2782af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 2783af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 2784af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Ty 2785af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 2786af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2787af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump const char *FieldNames[] = { 2788af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__isa", 2789af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__forwarding", 2790af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__flags", 2791af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__size", 2792af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__copy_helper", 2793af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__destroy_helper", 2794af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump DeclName, 2795af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 2796af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2797af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump for (size_t i = 0; i < 7; ++i) { 2798af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (!HasCopyAndDispose && i >=4 && i <= 5) 2799af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump continue; 2800af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 2801af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump &Idents.get(FieldNames[i]), 2802af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldTypes[i], /*DInfo=*/0, 2803af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump /*BitWidth=*/0, /*Mutable=*/false); 2804af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->addDecl(Field); 2805af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump } 2806af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2807af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->completeDefinition(*this); 2808af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2809af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return getPointerType(getTagDeclType(T)); 2810ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump} 2811ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2812ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2813ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike StumpQualType ASTContext::getBlockParmType( 2814ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump llvm::SmallVector<const Expr *, 8> &BlockDeclRefDecls) { 2815adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Move up 2816adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump static int UniqueBlockParmTypeID = 0; 2817adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump char Name[36]; 2818adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump sprintf(Name, "__block_literal_%u", ++UniqueBlockParmTypeID); 2819adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 2820adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T = RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2821adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(Name)); 2822adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 2823adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 2824adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 2825adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 2826adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 2827adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(getBlockDescriptorType()), 2828adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2829adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2830adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 2831adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__isa", 2832adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__flags", 2833adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__reserved", 2834adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__FuncPtr", 2835adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__descriptor" 2836adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2837adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2838adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 5; ++i) { 2839ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 2840adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 2841adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldTypes[i], /*DInfo=*/0, 2842ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 2843ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump T->addDecl(Field); 2844ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 2845ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2846ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump for (size_t i = 0; i < BlockDeclRefDecls.size(); ++i) { 2847ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const Expr *E = BlockDeclRefDecls[i]; 2848ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(E); 2849ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump clang::IdentifierInfo *Name = 0; 2850ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE) { 2851ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const ValueDecl *D = BDRE->getDecl(); 2852ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump Name = &Idents.get(D->getName()); 2853ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 2854ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump QualType FieldType = E->getType(); 2855ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2856ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE && BDRE->isByRef()) 2857af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType = BuildByRefType(BDRE->getDecl()->getNameAsCString(), 2858af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType); 2859ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2860ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 2861ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump Name, FieldType, /*DInfo=*/0, 2862ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 2863adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 2864adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 2865adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2866adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->completeDefinition(*this); 2867ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2868ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump return getPointerType(getTagDeclType(T)); 2869adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 2870adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2871319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 28726217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2873319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 2874319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 2875319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2876319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2877e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 2878e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 28792d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 2880e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 2881bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 2882bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 28831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 288485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 288585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 288685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2887a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 288833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 2889a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 289098be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 28911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 289233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 289333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 289498be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 289533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 289633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 289798be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 289898be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 289933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 290033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2901a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 290233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 29031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 2904e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2905c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2906ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 2907a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 290833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 29090d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 291033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 291133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 291233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 291333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 291498be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 291533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 291633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 291733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 291889951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 291989951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 292089951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 292189951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 2922a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 292333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 292433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 292533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 292633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 292733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 29281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 292933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 293033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 293189951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 293289951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 293389951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 29341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType PType = PVDecl->getOriginalType(); 29354306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 2936ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 2937ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 2938ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 2939bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 2940ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2941ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 2942ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2943ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 294433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 29454306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 29460d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 294733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 2948a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 294933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 295033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 295133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2952c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 295383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 2954c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 2955c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 29561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Property attributes are stored as a comma-delimited C string. The simple 29571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// attributes readonly and bycopy are encoded as single characters. The 29581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parametrized attributes, getter=name, setter=name, and ivar=name, are 29591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// encoded as single characters, followed by an identifier. Property types 29601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// are also encoded as a parametrized attribute. The characters used to encode 296183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 296283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 296383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 296483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 296583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 296683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 296783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 296883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 296983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 297083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 297183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 297283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 297383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 297483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 297583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 297683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 29771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 2978c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 2979e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2980c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 2981c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 2982c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 2983c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2984c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 2985c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 29861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCCategoryImplDecl *CID = 2987c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 2988c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 298917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 2990653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2991c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2992c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2993c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2994c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2995c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2996c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2997c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2998c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2999c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3000c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 300161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 3002c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 300317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 3004653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3005c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3006c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3007c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3008c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3009c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3010c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3011c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3012c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 30131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3014c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3015c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3016c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3017c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3018c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 3019c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3020c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 3021090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 3022090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 30231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 3024090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 3025090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 3026c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3027c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 3028c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 3029c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3030c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 3031c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 3032c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 30331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case ObjCPropertyDecl::Retain: S += ",&"; break; 3034c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3035c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3036c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3037c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 3038c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 3039c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 3040c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 3041c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3042090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 3043090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 30441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3045c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 3046c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 3047077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 3048c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3049c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3050c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 3051c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 3052077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 3053c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3054c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3055c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 3056c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 3057c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 305839f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 3059c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3060c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3061c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 3062c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 3063c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3064a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 30651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Another legacy compatibility encoding: 32-bit longs are encoded as 30661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 'l' or 'L' , but not always. For typedefs, we need to use 3067a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 3068a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 3069a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 30708e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(PointeeTy.getTypePtr())) { 3071183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = PointeeTy->getAs<BuiltinType>()) { 3072c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 3073c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3074a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 30751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else 3076c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 3077c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3078a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 3079a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3080a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3081a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 3082a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 30837d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 3084153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 308582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 308682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 308782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 308882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 30891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(T, S, true, true, Field, 30905b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 309182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 309282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 30931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void EncodeBitField(const ASTContext *Context, std::string& S, 3094153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 30958b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 30968b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 30978b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 30989a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 30998b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 31008b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 31018b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 31028b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 310301eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar// FIXME: Use SmallString for accumulating string. 310482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 310582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 310682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 3107153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 3108090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 31096ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 3110183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = T->getAs<BuiltinType>()) { 3111ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD && FD->isBitField()) 3112ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return EncodeBitField(this, S, FD); 3113ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner char encoding; 3114ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner switch (BT->getKind()) { 31151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: assert(0 && "Unhandled builtin type kind"); 3116ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 3117ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 3118ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_U: 3119ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 3120ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 3121ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 31221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::ULong: 31231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 31241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 312572696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 3126ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 3127ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 3128ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_S: 3129ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 3130ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Short: encoding = 's'; break; 3131ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 31321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::Long: 31331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 31341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 3135ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner break; 3136ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 3137ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 3138ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 3139ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 3140ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 314143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 31421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3143ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += encoding; 3144ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3145ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 31461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3147183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) { 3148c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 31491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 3150c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 3151ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3152ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 31531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31546217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const PointerType *PT = T->getAs<PointerType>()) { 315585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 3156a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 3157a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 3158a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 3159a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 31601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Also, do not emit the 'r' for anything but the outermost type! 31618e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(T.getTypePtr())) { 3162a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 3163a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3164a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3165a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 31669fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (OutermostType) { 3167a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 31686217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek while (P->getAs<PointerType>()) 31696217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek P = P->getAs<PointerType>()->getPointeeType(); 3170a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 3171a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3172a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3173a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3174a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3175a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 3176a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 3177a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 3178a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 3179a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 3180a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 3181a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 3182a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 3183a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 3184a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3185a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 318614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (isObjCSelType(PointeeTy)) { 31878baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 31888baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 3189c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 31901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 319185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 319285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 319385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 3194e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 319585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 319685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 319785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 31986217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek } else if (const RecordType *RTy = PointeeTy->getAs<RecordType>()) { 31999533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_class *" to "#". 32009533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { 32019533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '#'; 32029533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 32039533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 32049533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_object *" to "@". 32059533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { 32069533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '@'; 32079533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 32089533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 32099533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // fall through... 321085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 321185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 3212a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 3213a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 32141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 321543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 3216ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3217ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 32181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3219ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ArrayType *AT = 3220ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Ignore type qualifiers etc. 3221ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 3222559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 3223559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 3224559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 3225559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 32261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3227559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3228559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 3229559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 32301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3231559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 3232559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 3233559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 3234559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 3235559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 3236559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 3237559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 32381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3240559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3241559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 3242559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 3243ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3244ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 32451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3246183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (T->getAs<FunctionType>()) { 3247c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 3248ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3249ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 32501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32516217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *RTy = T->getAs<RecordType>()) { 325282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 3253d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 3254502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 3255502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 3256502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 3257502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 3258502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 3259502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 32600d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 32617d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 326217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 326317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 326444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 326543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 3266d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 326744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 3268d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 3269d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 32701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3271d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 327243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 32731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 327443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 3275d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 3276a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 3277a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 32781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(qt, S, false, true, 327943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 3280d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 32817d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 32826de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 3283d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 3284ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3285ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 32861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3287ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isEnumeralType()) { 32888b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 32898b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 32908b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 32918b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 3292ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3293ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 32941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3295ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isBlockPointerType()) { 329621a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 3297ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3298ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 32991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (const ObjCInterfaceType *OIT = T->getAs<ObjCInterfaceType>()) { 330143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 33020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ObjCInterfaceDecl *OI = OIT->getDecl(); 330343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 330443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 330543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 330643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 3307f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 330843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 3309f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 331043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 33111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 331243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 331343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 33141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 331543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 331643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 331743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 3318ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 331943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 33201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3321183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = T->getAs<ObjCObjectPointerType>()) { 332214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (OPT->isObjCIdType()) { 332314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '@'; 332414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3325ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 33261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3327ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCClassType()) { 332814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '#'; 332914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3330ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 33311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3332ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCQualifiedIdType()) { 33331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(getObjCIdType(), S, 333414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandPointedToStructures, 333514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandStructures, FD); 333614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (FD || EncodingProperty) { 333714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Note that we do extended encoding of protocol qualifer list 333814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Only when doing ivar or property encoding. 333914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 334067ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 334167ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 334214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '<'; 334314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += (*I)->getNameAsString(); 334414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '>'; 334514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 334614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 334714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 334814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3349ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 33501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3351ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner QualType PointeeTy = OPT->getPointeeType(); 3352ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (!EncodingProperty && 3353ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner isa<TypedefType>(PointeeTy.getTypePtr())) { 3354ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Another historical/compatibility reason. 33551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We encode the underlying type which comes out as 3356ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // {...}; 3357ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '^'; 33581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, 33591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump false, ExpandPointedToStructures, 3360ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner NULL); 336114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 336214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 3363ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3364ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '@'; 3365ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD || EncodingProperty) { 3366ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 336767ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff S += OPT->getInterfaceDecl()->getNameAsCString(); 336867ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 336967ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 3370ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '<'; 3371ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += (*I)->getNameAsString(); 3372ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '>'; 33731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3374ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 3375ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3376ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3377ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 33781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3379ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner assert(0 && "@encode for type not implemented!"); 338085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 338185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 33821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 3383ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 3384ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 3385ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 3386ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 3387ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 3388ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 3389ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 3390ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 3391ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 3392ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 3393ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 3394ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 3395ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 3396ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 3397ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 3398ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setBuiltinVaListType(QualType T) { 3399b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 34001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3401b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 3402b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 3403b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3404ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCIdType(QualType T) { 3405de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = T; 34067e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 34077e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 3408ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCSelType(QualType T) { 3409319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCSelType = T; 3410319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3411183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const TypedefType *TT = T->getAs<TypedefType>(); 3412319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 3413319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 3414319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 3415b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3416b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 34176217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *ptr = TD->getUnderlyingType()->getAs<PointerType>(); 3418c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 3419c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 3420b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 3421c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 3422c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 3423b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 3424b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 3425b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3426ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCProtoType(QualType QT) { 3427a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 3428390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 3429390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 3430ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCClassType(QualType T) { 3431de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = T; 34328baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 34338baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3434a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 34351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(ObjCConstantStringType.isNull() && 34362198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 34371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3438a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 34392198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 34402198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 34417532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a qualified 34427532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c std::vector. 34431eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 34447532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool TemplateKeyword, 34457532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateDecl *Template) { 34467532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 34477532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 34487532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 34497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 34507532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName *QTN = 34517532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 34527532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (!QTN) { 34537532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 34547532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 34557532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 34567532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 34577532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 34587532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 34597532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3460d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// \brief Retrieve the template name that represents a qualified 3461d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// template name such as \c std::vector. 34621eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 3463d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor bool TemplateKeyword, 3464d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor OverloadedFunctionDecl *Template) { 3465d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor llvm::FoldingSetNodeID ID; 3466d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 34671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3468d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor void *InsertPos = 0; 3469d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName *QTN = 3470d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3471d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor if (!QTN) { 3472d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 3473d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 3474d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor } 34751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3476d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor return TemplateName(QTN); 3477d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor} 3478d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 34797532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 34807532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 34811eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 34827532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 34831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((!NNS || NNS->isDependent()) && 34843b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor "Nested name specifier must be dependent"); 34857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 34867532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 34877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 34887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 34897532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 34907532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 34917532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 34927532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 34937532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 34947532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 34957532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 34967532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 34977532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 34987532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 34997532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 35007532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 35017532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 35027532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 35037532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 35047532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 35057532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 35067532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 35077532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3508b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 3509d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 3510d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 3511d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 3512b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 35131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case TargetInfo::NoInt: return QualType(); 3514b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 3515b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 3516b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 3517b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 3518b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 3519b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 3520b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 3521b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 3522b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 3523b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 3524b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 3525b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 3526b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 3527b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3528b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3529b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 3530b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3531b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3532fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 3533fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 3534fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 3535f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff/// FIXME: Move to Type. 3536fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 3537fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 3538fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 3539fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 354040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 3541fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 3542fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 35431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return false; 3544fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 3545fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 35464fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 35474fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 35484fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 35490953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualifiers::GC ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 35500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttrs = Qualifiers::GCNone; 35514fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 35524fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 3553b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 35544fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 35551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // (or pointers to them) be treated as though they were declared 3556a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 35570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GCAttrs == Qualifiers::GCNone) { 355875212ee91313bc1b6dd826d9b173541bc4016539Fariborz Jahanian if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) 35590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttrs = Qualifiers::Strong; 3560a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 35616217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek return getObjCGCAttrKind(Ty->getAs<PointerType>()->getPointeeType()); 3562a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 3563c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 3564c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 3565f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 35660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qualifiers::GCNone; 35674fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 3568b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 35694fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 35704fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 35716ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 35726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 35736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 3574770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 35751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// areCompatVectorTypes - Return true if the two specified vector types are 35766ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 35776ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 35786ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 35796ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 35806ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 358161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 35826ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 35836ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 35844084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 35854084c306635b70f37029dca938444e6013f08684Steve Naroff// ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. 35864084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 35874084c306635b70f37029dca938444e6013f08684Steve Naroff 35884084c306635b70f37029dca938444e6013f08684Steve Naroff/// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the 35894084c306635b70f37029dca938444e6013f08684Steve Naroff/// inheritance hierarchy of 'rProto'. 35900fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanianbool ASTContext::ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, 35910fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian ObjCProtocolDecl *rProto) { 35924084c306635b70f37029dca938444e6013f08684Steve Naroff if (lProto == rProto) 359314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return true; 35944084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCProtocolDecl::protocol_iterator PI = rProto->protocol_begin(), 35954084c306635b70f37029dca938444e6013f08684Steve Naroff E = rProto->protocol_end(); PI != E; ++PI) 35964084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 35974084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 35984084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 35994084c306635b70f37029dca938444e6013f08684Steve Naroff} 360014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 36014084c306635b70f37029dca938444e6013f08684Steve Naroff/// QualifiedIdConformsQualifiedId - compare id<p,...> with id<p1,...> 36024084c306635b70f37029dca938444e6013f08684Steve Naroff/// return true if lhs's protocols conform to rhs's protocol; false 36034084c306635b70f37029dca938444e6013f08684Steve Naroff/// otherwise. 36044084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::QualifiedIdConformsQualifiedId(QualType lhs, QualType rhs) { 36054084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isObjCQualifiedIdType() && rhs->isObjCQualifiedIdType()) 36064084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(lhs, rhs, false); 36074084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 36084084c306635b70f37029dca938444e6013f08684Steve Naroff} 36094084c306635b70f37029dca938444e6013f08684Steve Naroff 36104084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an 36114084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIDType. 36124084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::ObjCQualifiedIdTypesAreCompatible(QualType lhs, QualType rhs, 36134084c306635b70f37029dca938444e6013f08684Steve Naroff bool compare) { 36144084c306635b70f37029dca938444e6013f08684Steve Naroff // Allow id<P..> and an 'id' or void* type in all cases. 36151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isVoidPointerType() || 36164084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->isObjCIdType() || lhs->isObjCClassType()) 36174084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 36181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else if (rhs->isVoidPointerType() || 36194084c306635b70f37029dca938444e6013f08684Steve Naroff rhs->isObjCIdType() || rhs->isObjCClassType()) 36204084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 36214084c306635b70f37029dca938444e6013f08684Steve Naroff 36224084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsQID = lhs->getAsObjCQualifiedIdType()) { 3623183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *rhsOPT = rhs->getAs<ObjCObjectPointerType>(); 36241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36254084c306635b70f37029dca938444e6013f08684Steve Naroff if (!rhsOPT) return false; 36261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36274084c306635b70f37029dca938444e6013f08684Steve Naroff if (rhsOPT->qual_empty()) { 36281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a unqualified interface pointer "NSString*", 36294084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 36304084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 36314084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 36324084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 36334084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 36344084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 36354084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 36360fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (!rhsID->ClassImplementsProtocol(*I, true)) 36374084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 36384084c306635b70f37029dca938444e6013f08684Steve Naroff } 36394084c306635b70f37029dca938444e6013f08684Steve Naroff } 36404084c306635b70f37029dca938444e6013f08684Steve Naroff // If there are no qualifiers and no interface, we have an 'id'. 36414084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 36424084c306635b70f37029dca938444e6013f08684Steve Naroff } 36431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 36444084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 36454084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 36464084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 36474084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 3648de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 3649de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // when comparing an id<P> on lhs with a static type on rhs, 3650de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // see if static class implements all of id's protocols, directly or 3651de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // through its super class and categories. 36524084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsOPT->qual_begin(), 36534084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsOPT->qual_end(); J != E; ++J) { 36544084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 36554084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 36564084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 36574084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 36588f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 36598f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 3660de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 36611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a qualified interface pointer "NSString<P>*", 36624084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 36634084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 36644084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 36654084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 36664084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 36674084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 36684084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 36690fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (rhsID->ClassImplementsProtocol(*I, true)) { 36704084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 36714084c306635b70f37029dca938444e6013f08684Steve Naroff break; 36724084c306635b70f37029dca938444e6013f08684Steve Naroff } 36734084c306635b70f37029dca938444e6013f08684Steve Naroff } 36744084c306635b70f37029dca938444e6013f08684Steve Naroff } 36754084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 3676de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return false; 3677de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 36781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3679de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return true; 3680de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 36811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36824084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsQID = rhs->getAsObjCQualifiedIdType(); 36834084c306635b70f37029dca938444e6013f08684Steve Naroff assert(rhsQID && "One of the LHS/RHS should be id<x>"); 36844084c306635b70f37029dca938444e6013f08684Steve Naroff 36851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCObjectPointerType *lhsOPT = 36864084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->getAsObjCInterfacePointerType()) { 36874084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhsOPT->qual_empty()) { 36884084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 36894084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *lhsID = lhsOPT->getInterfaceDecl()) { 36904084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = rhsQID->qual_begin(), 36914084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); I != E; ++I) { 36924084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 36934084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 36944084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 36950fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (lhsID->ClassImplementsProtocol(*I, true)) { 36964084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 36974084c306635b70f37029dca938444e6013f08684Steve Naroff break; 36984084c306635b70f37029dca938444e6013f08684Steve Naroff } 36994084c306635b70f37029dca938444e6013f08684Steve Naroff } 37004084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 37014084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 37024084c306635b70f37029dca938444e6013f08684Steve Naroff } 37034084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 37044084c306635b70f37029dca938444e6013f08684Steve Naroff } 37051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 37064084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsOPT->qual_begin(), 37074084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsOPT->qual_end(); I != E; ++I) { 37084084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 37094084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 37104084c306635b70f37029dca938444e6013f08684Steve Naroff 37114084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 37124084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 37134084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 37144084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsQID->qual_begin(), 37154084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); J != E; ++J) { 37164084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 37174084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 37184084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 37194084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 37204084c306635b70f37029dca938444e6013f08684Steve Naroff break; 37214084c306635b70f37029dca938444e6013f08684Steve Naroff } 37224084c306635b70f37029dca938444e6013f08684Steve Naroff } 37234084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 37244084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 37254084c306635b70f37029dca938444e6013f08684Steve Naroff } 37264084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 37274084c306635b70f37029dca938444e6013f08684Steve Naroff } 37284084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 37294084c306635b70f37029dca938444e6013f08684Steve Naroff} 37304084c306635b70f37029dca938444e6013f08684Steve Naroff 37314084c306635b70f37029dca938444e6013f08684Steve Naroff/// canAssignObjCInterfaces - Return true if the two interface types are 37324084c306635b70f37029dca938444e6013f08684Steve Naroff/// compatible for assignment from RHS to LHS. This handles validation of any 37334084c306635b70f37029dca938444e6013f08684Steve Naroff/// protocol qualifiers on the LHS or RHS. 37344084c306635b70f37029dca938444e6013f08684Steve Naroff/// 37354084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 37364084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *RHSOPT) { 37374084c306635b70f37029dca938444e6013f08684Steve Naroff // If either type represents the built-in 'id' or 'Class' types, return true. 37384084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCBuiltinType() || RHSOPT->isObjCBuiltinType()) 37394084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 37404084c306635b70f37029dca938444e6013f08684Steve Naroff 37414084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 37421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 37431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType(RHSOPT,0), 37444084c306635b70f37029dca938444e6013f08684Steve Naroff false); 37454084c306635b70f37029dca938444e6013f08684Steve Naroff 37464084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 37474084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 37484084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHS && RHS) // We have 2 user-defined types. 37494084c306635b70f37029dca938444e6013f08684Steve Naroff return canAssignObjCInterfaces(LHS, RHS); 37501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37514084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 375214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 375314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 37543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 37553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 37566ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 37576ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 37586ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 37596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 37601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37616ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 37626ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 3763c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (LHS->getNumProtocols() == 0) 37646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 37651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37666ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 37676ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 3768c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (RHS->getNumProtocols() == 0) 37696ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 37701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3771c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator LHSPI = LHS->qual_begin(), 3772c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff LHSPE = LHS->qual_end(); 377391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 377491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 377591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 377691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 377791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 3778c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator RHSPI = RHS->qual_begin(), 37794084c306635b70f37029dca938444e6013f08684Steve Naroff RHSPE = RHS->qual_end(); 37808f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff RHSPI != RHSPE; RHSPI++) { 37818f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 378291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 37838f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 37848f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 378591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 378691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 378791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 378891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 378991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 379091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 379191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 37926ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 37936ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 3794389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 3795389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 3796183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *LHSOPT = LHS->getAs<ObjCObjectPointerType>(); 3797183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *RHSOPT = RHS->getAs<ObjCObjectPointerType>(); 37981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 379914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (!LHSOPT || !RHSOPT) 3800389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 380114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 380214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 380314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff canAssignObjCInterfaces(RHSOPT, LHSOPT); 3804389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 3805389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 38061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 3807ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 38081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C99 6.2.7p1: Two types have compatible types if their types are the 3809ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 38103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 38113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 38123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 38133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 38143d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 3815183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *lbase = lhs->getAs<FunctionType>(); 3816183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *rbase = rhs->getAs<FunctionType>(); 381772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 381872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 38193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 38203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 38213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 38223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 38233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 38243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 382561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 382661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 382761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 382861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 38296dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump // FIXME: double check this 38302455636163fdd18581d7fdae816433f886d88213Mike Stump bool NoReturn = lbase->getNoReturnAttr() || rbase->getNoReturnAttr(); 38312455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != lbase->getNoReturnAttr()) 38322455636163fdd18581d7fdae816433f886d88213Mike Stump allLTypes = false; 38332455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != rbase->getNoReturnAttr()) 38342455636163fdd18581d7fdae816433f886d88213Mike Stump allRTypes = false; 38351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 3837465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 3838465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 38393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 38403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 38413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 38423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 38433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 38443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 38453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 38463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 38473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 38483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 38493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 38507fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 38517fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 38527fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 38533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 38543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 38553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 38563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 38573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 38583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 38593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 38603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 386161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 386261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 386361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 386461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 38653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 38663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 38673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 38683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 38692455636163fdd18581d7fdae816433f886d88213Mike Stump lproto->isVariadic(), lproto->getTypeQuals(), 38702455636163fdd18581d7fdae816433f886d88213Mike Stump NoReturn); 38713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 38723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 38733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 38743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 38753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 387672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 38773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 3878465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 38793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 38803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 38813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 38823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 38833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 38843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 38853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 38863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 38873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 38883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 38893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 38903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 38913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 38923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 38933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 38943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 38953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 38962d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getNumArgs(), proto->isVariadic(), 38972d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getTypeQuals(), NoReturn); 38983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 38993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 39013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 39022455636163fdd18581d7fdae816433f886d88213Mike Stump return getFunctionNoProtoType(retType, NoReturn); 39033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 39043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39053d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 390643d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 390743d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 390843d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 39097c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 39107c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 39113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 39123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 39137c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 39147c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 39156217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RT = LHS->getAs<ReferenceType>()) 3916c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 39176217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RT = RHS->getAs<ReferenceType>()) 3918c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 39193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 39213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 39223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3923f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 39243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 39253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 39263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the qualifiers are different, the types aren't compatible... mostly. 39280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers LQuals = LHSCan.getQualifiers(); 39290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers RQuals = RHSCan.getQualifiers(); 39300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals != RQuals) { 39310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If any of these qualifiers are different, we have a type 39320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // mismatch. 39330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || 39340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall LQuals.getAddressSpace() != RQuals.getAddressSpace()) 39350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 39360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 39370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Exactly one GC qualifier difference is allowed: __strong is 39380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // okay if the other type has no GC qualifier but is an Objective 39390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // C object pointer (i.e. implicitly strong by default). We fix 39400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // this by pretending that the unqualified type was actually 39410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // qualified __strong. 39420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); 39430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); 39440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements"); 39450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 39460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) 39470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 39480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 39490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Strong && RHSCan->isObjCObjectPointerType()) { 39500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(LHS, getObjCGCQualType(RHS, Qualifiers::Strong)); 39510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 39520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_R == Qualifiers::Strong && LHSCan->isObjCObjectPointerType()) { 39530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(getObjCGCQualType(LHS, Qualifiers::Strong), RHS); 39540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 39553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 39560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 39570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 39580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Okay, qualifiers are equal. 39593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3960852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 3961852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 3962f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 39631adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 39641adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 39651adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 39661adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 39674c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 39684c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 3969a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 3970a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 3971a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 3972a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 39731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3974213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 3975213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 3976213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 39771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39784e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 39794e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 39801adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 39811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // a signed integer type, or an unsigned integer type. 3982183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = LHS->getAs<EnumType>()) { 39833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 39843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 3985bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 3986183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = RHS->getAs<EnumType>()) { 39873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 39883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 3989bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 39901adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 39913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 3992ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 39933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39944a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 39951adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 399672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 399772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 399872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 399972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 400072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 400172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 400272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 400372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 40047c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 40057c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 400672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 400772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 400872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 400972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 401072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 401172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 401272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 401372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 401472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 401572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 401672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 40171adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 40183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 40193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 40206217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<PointerType>()->getPointeeType(); 40216217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<PointerType>()->getPointeeType(); 40223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 40233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 402407d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 402561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 402607d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 402761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 40283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 40293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 4030c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 4031c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 4032c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 40336217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<BlockPointerType>()->getPointeeType(); 40346217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<BlockPointerType>()->getPointeeType(); 4035c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 4036c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 4037c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 4038c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 4039c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 4040c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 4041c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 4042c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 40431adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 40443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 40453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 40463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 40473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 40483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 40493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 40503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 40513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 40523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 40533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 405461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 405561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 405661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 405761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 40583bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 40593bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 40603bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 40613bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 40623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 40633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 406461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 406561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 406661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 406761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 40683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 40693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 40703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 40713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 40723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 40733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 40743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 40753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 40763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 40773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 40783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 40793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 40803bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 40813bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 40827e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 40837e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 40843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 40851adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 40863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 408772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 408872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 40893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 40901adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 40913cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 40923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 409364cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 409464cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 409564cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 40963cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 40975a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 4098183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (areCompatVectorTypes(LHS->getAs<VectorType>(), RHS->getAs<VectorType>())) 40993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 410061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 410161490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 41025fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 41035a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 41045a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 4105183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* LHSIface = LHS->getAs<ObjCInterfaceType>(); 4106183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* RHSIface = RHS->getAs<ObjCInterfaceType>(); 41075fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 41085fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 41095fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 41105fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 41113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 411261490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 411314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff case Type::ObjCObjectPointer: { 4114183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (canAssignObjCInterfaces(LHS->getAs<ObjCObjectPointerType>(), 4115183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall RHS->getAs<ObjCObjectPointerType>())) 411614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return LHS; 411714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4118bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 411914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 41205a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 41215a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 41225a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 41237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 41247532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 41257532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 4126ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 412772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 412872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 4129ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 41307192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 41315426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 4132ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 4133ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 413488054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 4135ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 4136ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 4137ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 41386a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (FixedWidthIntType *FWIT = dyn_cast<FixedWidthIntType>(T)) { 4139f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 4140f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 4141f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 4142ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 4143ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4144ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 4145ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 4146ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 41476a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 41486a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // Turn <4 x signed int> -> <4 x unsigned int> 41496a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const VectorType *VTy = T->getAs<VectorType>()) 41506a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner return getVectorType(getCorrespondingUnsignedType(VTy->getElementType()), 41516a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner VTy->getNumElements()); 41526a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 41536a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // For enums, we return the unsigned version of the base type. 41546a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const EnumType *ETy = T->getAs<EnumType>()) 4155ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 41566a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 41576a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner const BuiltinType *BTy = T->getAs<BuiltinType>(); 41586a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner assert(BTy && "Unexpected signed integer type"); 4159ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 4160ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 4161ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 4162ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 4163ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 4164ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 4165ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 4166ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 4167ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 4168ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 4169ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 4170ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 41712df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 41722df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 4173ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 4174ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 4175ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 4176ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 4177ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4178ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 41792cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 41802cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 41812cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 418286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 418386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 418486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 418586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 418686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 418786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 418886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 418986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 41901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 419186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 419286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 419386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 419486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 419586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 41961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 419786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 419886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 419986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 420086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 42011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: Done = true; --Str; break; 420286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 420386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 420486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 420586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 420686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 420786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 420886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 420986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 421086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 421186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 421286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 421386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 421486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 421586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 421686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 421786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 421886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 421986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 42201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 422186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 422286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 422386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 422486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 422586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 422686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 422786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 422886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 422986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 423086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 423186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 423286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 423386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 423486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 423586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 423686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 423786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 423886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 423986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 424086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 424186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 424286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 424386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 424486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 424586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 424686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 424786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 424886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 424986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 425086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 425186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 425286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 425386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 425486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 425586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 425686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 425786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 425886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 425986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 426086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 426186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 426286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 426386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 426486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 426586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 426686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 426786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 426886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 426986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 427086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 427186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 427286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 427386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 427486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 427586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 427686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 427786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 427886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 427986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 428086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 428186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 428286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 428386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 428486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 428586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 428686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 428786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 428886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 428986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 429086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 429186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 429286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 429386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 429486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 429586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 429686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 429786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 429886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 429986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 430086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 430186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 430286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 430386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 43041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 430586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 43061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 430786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 430886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getVectorType(ElementType, NumElements); 430986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 431086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4311d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor case 'X': { 4312d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 4313d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor Type = Context.getComplexType(ElementType); 4314d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor break; 4315d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor } 43169a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'P': 4317c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor Type = Context.getFILEType(); 4318c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor if (Type.isNull()) { 4319f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_stdio; 432086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 432186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4322fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 43239a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'J': 4324f711c41dd9412a8182793259d355c4f6979ed5edMike Stump if (Signed) 4325782fa308a765aeac2acb39c4e697c937ec21185bMike Stump Type = Context.getsigjmp_bufType(); 4326f711c41dd9412a8182793259d355c4f6979ed5edMike Stump else 4327f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Type = Context.getjmp_bufType(); 4328f711c41dd9412a8182793259d355c4f6979ed5edMike Stump 4329fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump if (Type.isNull()) { 4330f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_setjmp; 4331fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump return QualType(); 4332fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump } 4333fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 4334782fa308a765aeac2acb39c4e697c937ec21185bMike Stump } 43351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 433686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 433786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 43381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 433986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 434086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 434186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 434286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 434386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 434486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getPointerType(Type); 434586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 434686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 434786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 434886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 434986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 435086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 43510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Type = Type.withConst(); 435286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 435386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 435486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 43551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 435686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 435786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 435886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 435986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 436086df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 436186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 436286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 43631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 436486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 43651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 436686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 436786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 436886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 436986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 437086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 437186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 437286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 437386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 437486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 437586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 437686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 437786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 43781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 437986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 438086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 438186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 438286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 438386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 438486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 438586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 438686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 438786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 438886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 438986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner TypeStr[0] == '.', 0); 439086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 4391a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4392a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType 4393a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanASTContext::UsualArithmeticConversionsType(QualType lhs, QualType rhs) { 4394a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Perform the usual unary conversions. We do this early so that 4395a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // integral promotions to "int" can allow us to exit early, in the 4396a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // lhs == rhs check. Also, for conversion purposes, we ignore any 4397a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // qualifiers. For example, "const float" and "float" are 4398a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // equivalent. 4399a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isPromotableIntegerType()) 4400a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getPromotedIntegerType(lhs); 4401a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4402a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = lhs.getUnqualifiedType(); 4403a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isPromotableIntegerType()) 4404a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getPromotedIntegerType(rhs); 4405a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4406a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = rhs.getUnqualifiedType(); 4407a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4408a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If both types are identical, no conversion is needed. 4409a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs == rhs) 4410a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 44111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4412a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If either side is a non-arithmetic type (e.g. a pointer), we are done. 4413a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The caller can deal with this (e.g. pointer + int). 4414a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (!lhs->isArithmeticType() || !rhs->isArithmeticType()) 4415a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 44161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // At this point, we have two different arithmetic types. 44181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4419a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle complex types first (C99 6.3.1.8p1). 4420a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexType() || rhs->isComplexType()) { 4421a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the complex type. 44221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (rhs->isIntegerType() || rhs->isComplexIntegerType()) { 4423a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 4424a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4425a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 44261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isIntegerType() || lhs->isComplexIntegerType()) { 4427a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 4428a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4429a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4430a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // This handles complex/complex, complex/float, or float/complex. 44311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // When both operands are complex, the shorter operand is converted to the 44321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type of the longer, and that is the type of the result. This corresponds 44331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // to what is done when combining two real floating-point operands. 44341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The fun begins when size promotion occur across type domains. 4435a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // From H&S 6.3.4: When one operand is complex and the other is a real 44361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // floating-point type, the less precise type is converted, within it's 4437a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // real or complex domain, to the precision of the other type. For example, 44381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // when combining a "long double" with a "double _Complex", the 4439a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // "double _Complex" is promoted to "long double _Complex". 4440a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 44411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (result > 0) { // The left side is bigger, convert rhs. 4443a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getFloatingTypeOfSizeWithinDomain(lhs, rhs); 44441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (result < 0) { // The right side is bigger, convert lhs. 4445a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getFloatingTypeOfSizeWithinDomain(rhs, lhs); 44461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 4447a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // At this point, lhs and rhs have the same rank/size. Now, make sure the 4448a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // domains match. This is a requirement for our implementation, C99 4449a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // does not require this promotion. 4450a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs != rhs) { // Domains don't match, we have complex/float mix. 4451a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType()) { // handle "double, _Complex double". 4452a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4453a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { // handle "_Complex double, double". 4454a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4455a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4456a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4457a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // The domain/size match exactly. 4458a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4459a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Now handle "real" floating types (i.e. float, double, long double). 4460a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType() || rhs->isRealFloatingType()) { 4461a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the real floating type. 4462a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isIntegerType()) { 4463a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the lhs floating point type. 4464a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4465a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4466a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isComplexIntegerType()) { 4467a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the complex floating point type. 4468a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(lhs); 4469a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4470a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isIntegerType()) { 4471a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the rhs floating point type. 4472a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4473a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 44741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isComplexIntegerType()) { 4475a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the complex floating point type. 4476a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(rhs); 4477a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4478a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // We have two real floating types, float/complex combos were handled above. 4479a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Convert the smaller operand to the bigger result. 4480a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 4481a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (result > 0) // convert the rhs 4482a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4483a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(result < 0 && "illegal float comparison"); 4484a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; // convert the lhs 4485a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4486a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexIntegerType() || rhs->isComplexIntegerType()) { 4487a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle GCC complex int extension. 4488a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *lhsComplexInt = lhs->getAsComplexIntegerType(); 4489a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *rhsComplexInt = rhs->getAsComplexIntegerType(); 4490a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4491a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsComplexInt && rhsComplexInt) { 44921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (getIntegerTypeOrder(lhsComplexInt->getElementType(), 4493a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsComplexInt->getElementType()) >= 0) 4494a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // convert the rhs 4495a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4496a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (lhsComplexInt && rhs->isIntegerType()) { 4497a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 4498a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4499a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (rhsComplexInt && lhs->isIntegerType()) { 4500a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 4501a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4502a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4503a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4504a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Finally, we have two differing integer types. 4505a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The rules for this case are in C99 6.3.1.8 4506a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int compare = getIntegerTypeOrder(lhs, rhs); 4507a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman bool lhsSigned = lhs->isSignedIntegerType(), 4508a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsSigned = rhs->isSignedIntegerType(); 4509a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman QualType destType; 4510a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsSigned == rhsSigned) { 4511a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Same signedness; use the higher-ranked type 4512a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = compare >= 0 ? lhs : rhs; 4513a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (compare != (lhsSigned ? 1 : -1)) { 4514a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The unsigned type has greater than or equal rank to the 4515a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // signed type, so use the unsigned type 4516a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? rhs : lhs; 4517a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (getIntWidth(lhs) != getIntWidth(rhs)) { 4518a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The two types are different widths; if we are here, that 4519a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // means the signed type is larger than the unsigned type, so 4520a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // use the signed type. 4521a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? lhs : rhs; 4522a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { 4523a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The signed type is higher-ranked than the unsigned type, 4524a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // but isn't actually any bigger (like unsigned int and long 4525a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // on most 32-bit systems). Use the unsigned type corresponding 4526a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // to the signed type. 4527a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = getCorrespondingUnsignedType(lhsSigned ? lhs : rhs); 4528a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4529a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return destType; 4530a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 4531