ASTContext.cpp revision 19c8576b7328f4dc2d07682f5da552875c1912ef
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" 15bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck#include "clang/AST/CharUnits.h" 1649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis#include "clang/AST/DeclCXX.h" 17980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 18aaba5e346dffdbad5d1c42765a89e4a7afb0da67Douglas Gregor#include "clang/AST/DeclTemplate.h" 19b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis#include "clang/AST/TypeLoc.h" 20e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 212cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor#include "clang/AST/ExternalASTSource.h" 2219cc4abea06a9b49e0e16a50d335c064cd723572Anders Carlsson#include "clang/AST/RecordLayout.h" 231b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner#include "clang/Basic/Builtins.h" 24a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner#include "clang/Basic/SourceManager.h" 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 26f5942a44880be26878592eb052b737579349411eBenjamin Kramer#include "llvm/ADT/SmallString.h" 2785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 286fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.h" 29f5942a44880be26878592eb052b737579349411eBenjamin Kramer#include "llvm/Support/raw_ostream.h" 3029445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson#include "RecordLayoutBuilder.h" 3129445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3861710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 39444be7366d0a1e172c0290a1ea54c1cb16b5947cDaniel Dunbar const TargetInfo &t, 40e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 411b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner Builtin::Context &builtins, 421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool FreeMem, unsigned size_reserve) : 431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 44782fa308a765aeac2acb39c4e697c937ec21185bMike Stump ObjCFastEnumerationStateTypeDecl(0), FILEDecl(0), jmp_bufDecl(0), 45083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump sigjmp_bufDecl(0), BlockDescriptorType(0), BlockDescriptorExtendedType(0), 46083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump SourceMgr(SM), LangOpts(LOpts), 471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump LoadedExternalComments(false), FreeMemory(FreeMem), Target(t), 482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Idents(idents), Selectors(sels), 491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BuiltinInfo(builtins), ExternalSource(0), PrintingPolicy(LOpts) { 500f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCIdRedefinitionType = QualType(); 510f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCClassRedefinitionType = QualType(); 52369a3bd9979cf529eed529aa037de713c213e47dFariborz Jahanian ObjCSelRedefinitionType = QualType(); 531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (size_reserve > 0) Types.reserve(size_reserve); 54e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 5514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff InitBuiltinTypes(); 56e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 57e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 593478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek // Release the DenseMaps associated with DeclContext objects. 603478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek // FIXME: Is this the ideal solution? 613478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek ReleaseDeclContextMaps(); 623478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek 63bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek if (FreeMemory) { 64bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Deallocate all the types. 65bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek while (!Types.empty()) { 66bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek Types.back()->Destroy(*this); 67bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek Types.pop_back(); 68bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 69b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 70bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek for (llvm::FoldingSet<ExtQuals>::iterator 71bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek I = ExtQualNodes.begin(), E = ExtQualNodes.end(); I != E; ) { 72bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Increment in loop to prevent using deallocated memory. 730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Deallocate(&*I++); 74bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 77bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek for (llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 78bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); I != E; ) { 79bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Increment in loop to prevent using deallocated memory. 80bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 81bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek delete R; 82b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 83b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 84bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek for (llvm::DenseMap<const ObjCContainerDecl*, 85bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek const ASTRecordLayout*>::iterator 86bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek I = ObjCLayouts.begin(), E = ObjCLayouts.end(); I != E; ) { 87bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Increment in loop to prevent using deallocated memory. 88bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 89bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek delete R; 90b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 91b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 92ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 931ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 941ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNSEnd = NestedNameSpecifiers.end(); 96bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek NNS != NNSEnd; ) { 97bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Increment in loop to prevent using deallocated memory. 981ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 99bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 100ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 101ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 102ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 103ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 104b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 1082cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 1092cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 1102cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 1112cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 1157c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 116dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 1171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump#define TYPE(Name, Parent) 0, 118dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 119dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 120dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 121dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 122c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 125dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 128dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 129dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 130dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 131dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 132dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 133dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 134dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 135dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 136dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 1371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 138dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1392cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1402cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1412cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1422cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1432cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 147e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallvoid ASTContext::InitBuiltinType(CanQualType &R, BuiltinType::Kind K) { 1486b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BuiltinType *Ty = new (*this, TypeAlignment) BuiltinType(K); 149e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall R = CanQualType::CreateUnsafe(QualType(Ty, 0)); 1506b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Types.push_back(Ty); 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 16215b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 18464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1852df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1862df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1872df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1882df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1893a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1903a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1913a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1923a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 19364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 194f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 195f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char16Ty, BuiltinType::Char16); 196f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 197f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16Ty = getFromTargetType(Target.getChar16Type()); 198f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 199f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 200f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char32Ty, BuiltinType::Char32); 201f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 202f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32Ty = getFromTargetType(Target.getChar32Type()); 203f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2048e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 205898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 206898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 207898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 208898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 209898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 210898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 211898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 212898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 2138e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Placeholder type for C++0x auto declarations whose real type has 215e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 216e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 2171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2228e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2237e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 2241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 225de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // "Builtin" typedefs set by Sema::ActOnTranslationUnitScope(). 226de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = QualType(); 227de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = QualType(); 22813dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian ObjCSelTypedefType = QualType(); 2291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23013dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian // Builtin types for 'id', 'Class', and 'SEL'. 231de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); 232de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); 23313dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian InitBuiltinType(ObjCBuiltinSelTy, BuiltinType::ObjCSel); 23414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 235a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 2361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 23833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2396e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2406e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2416e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 244251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorMemberSpecializationInfo * 245663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas GregorASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) { 2467caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Var->isStaticDataMember() && "Not a static data member"); 247663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor llvm::DenseMap<const VarDecl *, MemberSpecializationInfo *>::iterator Pos 2487caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor = InstantiatedFromStaticDataMember.find(Var); 2497caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Pos == InstantiatedFromStaticDataMember.end()) 2507caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return 0; 2511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2527caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return Pos->second; 2537caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2547caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 256251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl, 257251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor TemplateSpecializationKind TSK) { 2587caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Inst->isStaticDataMember() && "Not a static data member"); 2597caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Tmpl->isStaticDataMember() && "Not a static data member"); 2607caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(!InstantiatedFromStaticDataMember[Inst] && 2617caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor "Already noted what static data member was instantiated from"); 262251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor InstantiatedFromStaticDataMember[Inst] 263251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor = new (*this) MemberSpecializationInfo(Tmpl, TSK); 2647caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2657caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2667ba107a1863ddfa1664555854f0d7bdb3c491c92John McCallNamedDecl * 267ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::getInstantiatedFromUsingDecl(UsingDecl *UUD) { 2687ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall llvm::DenseMap<UsingDecl *, NamedDecl *>::const_iterator Pos 269ed97649e9574b9d854fa4d6109c9333ae0993554John McCall = InstantiatedFromUsingDecl.find(UUD); 270ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (Pos == InstantiatedFromUsingDecl.end()) 2710d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return 0; 2721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2730d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return Pos->second; 2740d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2750d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 2760d8df780aef1acda5962347a32591efc629b6748Anders Carlssonvoid 277ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::setInstantiatedFromUsingDecl(UsingDecl *Inst, NamedDecl *Pattern) { 278ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert((isa<UsingDecl>(Pattern) || 279ed97649e9574b9d854fa4d6109c9333ae0993554John McCall isa<UnresolvedUsingValueDecl>(Pattern) || 280ed97649e9574b9d854fa4d6109c9333ae0993554John McCall isa<UnresolvedUsingTypenameDecl>(Pattern)) && 281ed97649e9574b9d854fa4d6109c9333ae0993554John McCall "pattern decl is not a using decl"); 282ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert(!InstantiatedFromUsingDecl[Inst] && "pattern already exists"); 283ed97649e9574b9d854fa4d6109c9333ae0993554John McCall InstantiatedFromUsingDecl[Inst] = Pattern; 284ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 285ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 286ed97649e9574b9d854fa4d6109c9333ae0993554John McCallUsingShadowDecl * 287ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::getInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst) { 288ed97649e9574b9d854fa4d6109c9333ae0993554John McCall llvm::DenseMap<UsingShadowDecl*, UsingShadowDecl*>::const_iterator Pos 289ed97649e9574b9d854fa4d6109c9333ae0993554John McCall = InstantiatedFromUsingShadowDecl.find(Inst); 290ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (Pos == InstantiatedFromUsingShadowDecl.end()) 291ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return 0; 292ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 293ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return Pos->second; 294ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 295ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 296ed97649e9574b9d854fa4d6109c9333ae0993554John McCallvoid 297ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::setInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst, 298ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UsingShadowDecl *Pattern) { 299ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert(!InstantiatedFromUsingShadowDecl[Inst] && "pattern already exists"); 300ed97649e9574b9d854fa4d6109c9333ae0993554John McCall InstantiatedFromUsingShadowDecl[Inst] = Pattern; 3010d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 3020d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 303d8b285fee4471f393da8ee30f552ceacdc362afaAnders CarlssonFieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { 304d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos 305d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson = InstantiatedFromUnnamedFieldDecl.find(Field); 306d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson if (Pos == InstantiatedFromUnnamedFieldDecl.end()) 307d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return 0; 3081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 309d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return Pos->second; 310d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 311d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 312d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlssonvoid ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, 313d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson FieldDecl *Tmpl) { 314d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed"); 315d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Tmpl->getDeclName() && "Template field decl is not unnamed"); 316d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!InstantiatedFromUnnamedFieldDecl[Inst] && 317d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson "Already noted what unnamed field was instantiated from"); 3181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 319d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; 320d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 321d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 3222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregornamespace { 3231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump class BeforeInTranslationUnit 3242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor : std::binary_function<SourceRange, SourceRange, bool> { 3252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceManager *SourceMgr; 3261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor public: 3282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 3291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool operator()(SourceRange X, SourceRange Y) { 3312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 3322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor }; 3342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 3352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Determine whether the given comment is a Doxygen-style comment. 3372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Start the start of the comment text. 3392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param End the end of the comment text. 3412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Member whether we want to check whether this is a member comment 3432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// (which requires a < after the Doxygen-comment delimiter). Otherwise, 3442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// we only return true when we find a non-member comment. 3451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic bool 3461eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpisDoxygenComment(SourceManager &SourceMgr, SourceRange Comment, 3472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool Member = false) { 3481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *BufferStart 3492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(SourceMgr.getFileID(Comment.getBegin())).first; 3502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *Start = BufferStart + SourceMgr.getFileOffset(Comment.getBegin()); 3512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char* End = BufferStart + SourceMgr.getFileOffset(Comment.getEnd()); 3521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (End - Start < 4) 3542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor assert(Start[0] == '/' && "Not a comment?"); 3572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '*' && !(Start[2] == '!' || Start[2] == '*')) 3582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '/' && !(Start[2] == '!' || Start[2] == '/')) 3602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return (Start[3] == '<') == Member; 3632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 3642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Retrieve the comment associated with the given declaration, if 3661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// it has one. 3672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorconst char *ASTContext::getCommentForDecl(const Decl *D) { 3682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!D) 3692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check whether we have cached a comment string for this declaration 3722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // already. 3731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::DenseMap<const Decl *, std::string>::iterator Pos 3742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = DeclComments.find(D); 3752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Pos != DeclComments.end()) 3762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Pos->second.c_str(); 3772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If we have an external AST source and have not yet loaded comments from 3792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // that source, do so now. 3802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (ExternalSource && !LoadedExternalComments) { 3812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange> LoadedComments; 3822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExternalSource->ReadComments(LoadedComments); 3831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!LoadedComments.empty()) 3852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Comments.insert(Comments.begin(), LoadedComments.begin(), 3862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedComments.end()); 3871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments = true; 3892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If there are no comments anywhere, we won't find anything. 3922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Comments.empty()) 3932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the declaration doesn't map directly to a location in a file, we 3962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // can't find the comment. 3972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceLocation DeclStartLoc = D->getLocStart(); 3982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartLoc.isInvalid() || !DeclStartLoc.isFileID()) 3992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Find the comment that occurs just before this declaration. 4022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator LastComment 4031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = std::lower_bound(Comments.begin(), Comments.end(), 4042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceRange(DeclStartLoc), 4052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor BeforeInTranslationUnit(&SourceMgr)); 4061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the location for the start of the declaration and find the 4082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // beginning of the file buffer. 4091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<FileID, unsigned> DeclStartDecomp 4102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(DeclStartLoc); 4111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *FileBufferStart 4122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(DeclStartDecomp.first).first; 4131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // First check whether we have a comment for a member. 4152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment != Comments.end() && 4162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor !isa<TagDecl>(D) && !isa<NamespaceDecl>(D) && 4172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor isDoxygenComment(SourceMgr, *LastComment, true)) { 4182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 4192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 4202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first == LastCommentEndDecomp.first && 4212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second) 4221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump == SourceMgr.getLineNumber(LastCommentEndDecomp.first, 4232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second)) { 4242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The Doxygen member comment comes after the declaration starts and 4252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is on the same line and in the same file as the declaration. This 4262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is the comment we want. 4272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 4281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 4291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 4302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 4312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 4322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment == Comments.begin()) 4362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --LastComment; 4382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the end of the comment. 4402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 4412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 4421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment and the declaration aren't in the same file, then they 4442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // aren't related. 4452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first != LastCommentEndDecomp.first) 4462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check that we actually have a Doxygen comment. 4492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *LastComment)) 4502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Compute the starting line for the declaration and for the end of the 4532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // comment (this is expensive). 4541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned DeclStartLine 4552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second); 4562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned CommentEndLine 4571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = SourceMgr.getLineNumber(LastCommentEndDecomp.first, 4582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second); 4591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment does not end on the line prior to the declaration, then 4612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // the comment is not associated with the declaration at all. 4622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (CommentEndLine + 1 != DeclStartLine) 4632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // We have a comment, but there may be more comments on the previous lines. 4662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Keep looking so long as the comments are still Doxygen comments and are 4672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // still adjacent. 4681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ExpectedLine 4692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(LastComment->getBegin()) - 1; 4702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator FirstComment = LastComment; 4712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != Comments.begin()) { 4722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Look at the previous comment 4732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --FirstComment; 4742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> Decomp 4752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this previous comment is in a different file, we're done. 4782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Decomp.first != DeclStartDecomp.first) { 4792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this comment is not a Doxygen comment, we're done. 4842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *FirstComment)) { 4852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the line number is not what we expected, we're done. 4902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned Line = SourceMgr.getLineNumber(Decomp.first, Decomp.second); 4912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Line != ExpectedLine) { 4922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Set the next expected line number. 4971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExpectedLine 4982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(FirstComment->getBegin()) - 1; 4992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 5001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The iterator range [FirstComment, LastComment] contains all of the 5022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // BCPL comments that, together, are associated with this declaration. 5032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Form a single comment block string for this declaration that concatenates 5042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // all of these comments. 5052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 5062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != LastComment) { 5072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompStart 5082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getBegin()); 5092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompEnd 5102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 5112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + DecompStart.second, 5122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + DecompEnd.second + 1); 5132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 5142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 5151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Append the last comment line. 5171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 5181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 5192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 5202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 5212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 5222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 523464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 524464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 525464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 526a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 527b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 528b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 529b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 530183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const BuiltinType *BT = T->getAs<BuiltinType>(); 531b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 532b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 533b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 534b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 535b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 536b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 537b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 538b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 539b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 5408b752f10c394b140f9ef89e049cbad1a7676fc25Ken Dyck/// getDeclAlign - Return a conservative estimate of the alignment of the 541af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 542af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 5435d484e8cf710207010720589d89602233de61d01Sebastian Redl/// If @p RefAsPointee, references are treated like their underlying type 5445d484e8cf710207010720589d89602233de61d01Sebastian Redl/// (for alignof), else they're treated like pointers (for CodeGen). 5458b752f10c394b140f9ef89e049cbad1a7676fc25Ken DyckCharUnits ASTContext::getDeclAlign(const Decl *D, bool RefAsPointee) { 546dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 547dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 54840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 549bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Align = std::max(Align, AA->getMaxAlignment()); 550dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 551af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 552af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 5536217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType* RT = T->getAs<ReferenceType>()) { 5545d484e8cf710207010720589d89602233de61d01Sebastian Redl if (RefAsPointee) 5555d484e8cf710207010720589d89602233de61d01Sebastian Redl T = RT->getPointeeType(); 5565d484e8cf710207010720589d89602233de61d01Sebastian Redl else 5575d484e8cf710207010720589d89602233de61d01Sebastian Redl T = getPointerType(RT->getPointeeType()); 5585d484e8cf710207010720589d89602233de61d01Sebastian Redl } 5595d484e8cf710207010720589d89602233de61d01Sebastian Redl if (!T->isIncompleteType() && !T->isFunctionType()) { 5604cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 561dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 562dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 563dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 564dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 565dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 566af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 567dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 5688b752f10c394b140f9ef89e049cbad1a7676fc25Ken Dyck return CharUnits::fromQuantity(Align / Target.getCharWidth()); 569af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 570b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 571a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 572a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 5730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// 5740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// FIXME: Pointers into different addr spaces could have different sizes and 5750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// alignment requirements: getPointerInfo should take an AddrSpace, this 5760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// should take a QualType, &c. 577d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 5781d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 5795e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 5805e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 581a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 58272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 58372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 58418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 58572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 58672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 58718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 58872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 58972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 5905d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 5915d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 59218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 59318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 59418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 59518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 59618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 59772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 598fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 59918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 60018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 60118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 60218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 603fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 6041d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 6051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 60698be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 6079e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 608030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 609030d8846c7e520330007087e949f621989876e3aChris Lattner break; 6105c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 611213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 612030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 6139fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner const VectorType *VT = cast<VectorType>(T); 6149fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(VT->getElementType()); 6159fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = EltInfo.first*VT->getNumElements(); 6164bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 6176fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 6186fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 6199fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner if (VT->getNumElements() & (VT->getNumElements()-1)) { 6209fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Align = llvm::NextPowerOf2(Align); 6219fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = llvm::RoundUpToAlignment(Width, Align); 6229fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner } 623030d8846c7e520330007087e949f621989876e3aChris Lattner break; 624030d8846c7e520330007087e949f621989876e3aChris Lattner } 6255d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 6269e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 627a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 628692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 629d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 63018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 63118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 63218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 63318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 63418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 6356f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 6369e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 6379e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 6386f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 639692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 640692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 641692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 6426f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 6439e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 6449e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 6456f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 64664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 64764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 64864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 64964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 650f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char16: 651f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar16Width(); 652f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar16Align(); 653f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 654f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char32: 655f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar32Width(); 656f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar32Align(); 657f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 658692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 6596f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 6609e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 6619e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 6626f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 663692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 6646f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 6659e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 6669e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 6676f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 668692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 6696f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 6709e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 6719e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 6726f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 673692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 6746f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 6759e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 6769e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 6776f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 678ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 679ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 680ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 681ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 682ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 6836f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 6849e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 6859e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 6866f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6876f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 6885426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 6895426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 6906f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6916f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 6929e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 6939e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 6946f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6956e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 6966e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 6976e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 6981590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 699a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 700bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 701d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 7025426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 703f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 7046f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 705485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 706485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 707485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 708485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 709485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 710485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 7115d484e8cf710207010720589d89602233de61d01Sebastian Redl case Type::LValueReference: 7125d484e8cf710207010720589d89602233de61d01Sebastian Redl case Type::RValueReference: { 7135d484e8cf710207010720589d89602233de61d01Sebastian Redl // alignof and sizeof should never enter this code path here, so we go 7145d484e8cf710207010720589d89602233de61d01Sebastian Redl // the pointer route. 7155d484e8cf710207010720589d89602233de61d01Sebastian Redl unsigned AS = cast<ReferenceType>(T)->getPointeeType().getAddressSpace(); 7165d484e8cf710207010720589d89602233de61d01Sebastian Redl Width = Target.getPointerWidth(AS); 7175d484e8cf710207010720589d89602233de61d01Sebastian Redl Align = Target.getPointerAlign(AS); 7185d484e8cf710207010720589d89602233de61d01Sebastian Redl break; 7195d484e8cf710207010720589d89602233de61d01Sebastian Redl } 720f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 721f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 7225426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 723f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 724f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 725f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 726f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 727f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 7281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> PtrDiffInfo = 7291cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 7301cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 731f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 732f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 7331cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 7341cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 735f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 7365d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 7375d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 7385d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 7391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> EltInfo = 74098be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 7419e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 7425d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 7435d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 7445d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 74544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 7461d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 74744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 74844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 74944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 75044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 75144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 75272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 75372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 7541d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 7551d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 7561d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 7578389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 7588389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 7598389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 7608389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 7611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7621d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 7637176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 7647176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 7651d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 7667176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 7677176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 7687176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 769dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 770a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 7717532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 7729fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::SubstTemplateTypeParm: 77349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return getTypeInfo(cast<SubstTemplateTypeParmType>(T)-> 77449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall getReplacementType().getTypePtr()); 77549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 7769fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::Elaborated: 7779fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner return getTypeInfo(cast<ElaboratedType>(T)->getUnderlyingType() 7789fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner .getTypePtr()); 7797da2431c23ef1ee8acb114e39692246e1801afc2John McCall 78018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 78118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 78240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 783bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Align = std::max(Aligned->getMaxAlignment(), 784bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt getTypeAlign(Typedef->getUnderlyingType().getTypePtr())); 78518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 78618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 78718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 7887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 7897176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 79018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 79118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 79218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 79318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 79418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 79518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 79618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 79718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 798395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 799395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 800395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 801395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 80218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 80318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 8041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 80518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 8061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(getCanonicalType(T) != T && 80718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 80818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 80918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 81018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 81118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 81218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 8131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 814464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 8159e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 816a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 817a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 818bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck/// getTypeSizeInChars - Return the size of the specified type, in characters. 819bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck/// This method does not work on incomplete types. 820bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen DyckCharUnits ASTContext::getTypeSizeInChars(QualType T) { 821199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return CharUnits::fromQuantity(getTypeSize(T) / getCharWidth()); 822bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck} 823bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen DyckCharUnits ASTContext::getTypeSizeInChars(const Type *T) { 824199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return CharUnits::fromQuantity(getTypeSize(T) / getCharWidth()); 825bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck} 826bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck 82716e20cce43385001f33f8e3f90ee345609c805d1Ken Dyck/// getTypeAlignInChars - Return the ABI-specified alignment of a type, in 82886fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck/// characters. This method does not work on incomplete types. 82986fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken DyckCharUnits ASTContext::getTypeAlignInChars(QualType T) { 83086fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck return CharUnits::fromQuantity(getTypeAlign(T) / getCharWidth()); 83186fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck} 83286fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken DyckCharUnits ASTContext::getTypeAlignInChars(const Type *T) { 83386fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck return CharUnits::fromQuantity(getTypeAlign(T) / getCharWidth()); 83486fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck} 83586fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck 83634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 83734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 83834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 83934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 84034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 84134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 8421eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 8431eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 844183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType* CT = T->getAs<ComplexType>()) 8451eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 8461eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 8471eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 8481eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 8491eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 85034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 85134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 85234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 853a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 854a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 855a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 856a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 857a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 858f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 859a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 860a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 861a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 862a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 863a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 864a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 865a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 866a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 867a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 868a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 869a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 870a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 8718e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 8728e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 8738e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 8748e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 8758e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 8768e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian bool CollectSynthesized) { 8778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 8788e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 8798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 8808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (CollectSynthesized) 8828e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian CollectSynthesizedIvars(OI, Ivars); 8838e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8848e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8859820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 8869820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 88717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 88817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8899820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8909820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8929820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 8939820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8949820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8959820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 8969820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8979820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8989820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// CollectSynthesizedIvars - 8999820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// This routine collect synthesized ivars for the designated class. 9009820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 9019820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 9029820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 90317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 90417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 9059820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 9069820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 9079820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 9089820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 9099820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 9109820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 9119820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 9129820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 9139820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 9149820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 9159820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 9169820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 917e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// CollectInheritedProtocols - Collect all protocols in current class and 918e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// those inherited by it. 919e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid ASTContext::CollectInheritedProtocols(const Decl *CDecl, 920432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl*, 8> &Protocols) { 921e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCInterfaceDecl *OI = dyn_cast<ObjCInterfaceDecl>(CDecl)) { 922e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 923e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 924e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 925432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 926e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 927e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 928e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 929e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 930e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 931e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian // Categories of this Interface. 932e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (const ObjCCategoryDecl *CDeclChain = OI->getCategoryList(); 933e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CDeclChain; CDeclChain = CDeclChain->getNextClassCategory()) 934e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(CDeclChain, Protocols); 935e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (ObjCInterfaceDecl *SD = OI->getSuperClass()) 936e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian while (SD) { 937e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(SD, Protocols); 938e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian SD = SD->getSuperClass(); 939e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 940e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 941e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 942e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCCategoryDecl *OC = dyn_cast<ObjCCategoryDecl>(CDecl)) { 943e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OC->protocol_begin(), 944e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OC->protocol_end(); P != PE; ++P) { 945e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 946432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 947e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 948e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 949e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 950e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 951e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 952e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 953e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCProtocolDecl *OP = dyn_cast<ObjCProtocolDecl>(CDecl)) { 954e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = OP->protocol_begin(), 955e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OP->protocol_end(); P != PE; ++P) { 956e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 957432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 958e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 959e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 960e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 961e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 962e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 963e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 964e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 965e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 9668e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 9678e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 96817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 96917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 9708e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 9718e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 9728e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9738e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into nested protocols. 9748e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 9758e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->protocol_end(); P != E; ++P) 9768e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(*P); 9778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 9788e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 9798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) { 9818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 98217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 98317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 9848e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 9858e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 9868e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 9878e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into interface's protocol list for properties declared 9888e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // in the protocol and whose ivars are synthesized. 9898e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 9908e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 9918e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ObjCProtocolDecl *PD = (*P); 9928e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(PD); 9938e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 9948e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 9958e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 9968e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9978a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCInterfaceDecl,or NULL if none exists. 9988a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { 9998a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 10008a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 10018a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 10028a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCImplementationDecl>(I->second); 10038a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 10048a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 10058a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCCategoryDecl, or NULL if none exists. 10068a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { 10078a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 10088a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 10098a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 10108a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCCategoryImplDecl>(I->second); 10118a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 10128a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 10138a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 10148a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCInterfaceDecl. 10158a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, 10168a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImplementationDecl *ImplD) { 10178a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(IFaceD && ImplD && "Passed null params"); 10188a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[IFaceD] = ImplD; 10198a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 10208a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCCategoryDecl. 10218a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, 10228a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCCategoryImplDecl *ImplD) { 10238a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(CatD && ImplD && "Passed null params"); 10248a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[CatD] = ImplD; 10258a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 10268a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 1027a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Allocate an uninitialized TypeSourceInfo. 1028b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 1029a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// The caller should initialize the memory held by TypeSourceInfo using 1030b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// the TypeLoc wrappers. 1031b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 1032b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \param T the type that will be the basis for type source info. This type 1033b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// should refer to how the declarator was written in source code, not to 1034b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// what type semantic analysis resolved the declarator to. 1035a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo *ASTContext::CreateTypeSourceInfo(QualType T, 1036109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall unsigned DataSize) { 1037109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall if (!DataSize) 1038109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall DataSize = TypeLoc::getFullDataSizeForType(T); 1039109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall else 1040109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall assert(DataSize == TypeLoc::getFullDataSizeForType(T) && 1041a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall "incorrect data size provided to CreateTypeSourceInfo!"); 1042109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall 1043a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 1044a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall (TypeSourceInfo*)BumpAlloc.Allocate(sizeof(TypeSourceInfo) + DataSize, 8); 1045a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (TInfo) TypeSourceInfo(T); 1046a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 1047b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis} 1048b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis 1049a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo *ASTContext::getTrivialTypeSourceInfo(QualType T, 1050a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall SourceLocation L) { 1051a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = CreateTypeSourceInfo(T); 1052a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall DI->getTypeLoc().initialize(L); 1053a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall return DI; 1054a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall} 1055a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall 1056b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 1057b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 1058b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 1059b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 1060b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 106144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 1062b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 1063b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 1064532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 1065532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 106644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 10671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCContainerDecl *Key = 1068d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 1069d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 1070d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 107144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 1072453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 1073453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 10748e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned SynthCount = CountSynthesizedIvars(D); 1075d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 1076453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 1077453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 1078453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 10798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 1080453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 1081453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 1082453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 10831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 108429445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D, Impl); 108529445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ObjCLayouts[Key] = NewEntry; 10861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 108744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 108844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 108944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 1090b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1091b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 1092b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 1093b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1094b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 1095b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1096b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 1097b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 1098b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1099b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 110088a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 1101464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 1102464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 110398be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 1104952b017601f9c82b51119c3a1600f1312a833db9Douglas Gregor D = D->getDefinition(); 11054b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 11064bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 1107464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 1108ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // Note that we can't save a reference to the entry because this function 1109ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // is recursive. 1110ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman const ASTRecordLayout *Entry = ASTRecordLayouts[D]; 1111464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 11124bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 11131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 111429445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D); 1115ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman ASTRecordLayouts[D] = NewEntry; 11161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11175d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 1118464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 1119464175bba1318bef7905122e9fda20cff926df78Chris Lattner 1120f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlssonconst CXXMethodDecl *ASTContext::getKeyFunction(const CXXRecordDecl *RD) { 1121952b017601f9c82b51119c3a1600f1312a833db9Douglas Gregor RD = cast<CXXRecordDecl>(RD->getDefinition()); 1122f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson assert(RD && "Cannot get key function for forward declarations!"); 1123f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1124f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson const CXXMethodDecl *&Entry = KeyFunctions[RD]; 1125f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson if (!Entry) 1126f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson Entry = ASTRecordLayoutBuilder::ComputeKeyFunction(RD); 1127f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson else 1128f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson assert(Entry == ASTRecordLayoutBuilder::ComputeKeyFunction(RD) && 1129f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson "Key function changed!"); 1130f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1131f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson return Entry; 1132f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson} 1133f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1134a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1135a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 1136a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1137a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 11380953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getExtQualType(const Type *TypeNode, Qualifiers Quals) { 11390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned Fast = Quals.getFastQualifiers(); 11400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeFastQualifiers(); 11410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Check if we've already instantiated this type. 11430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::FoldingSetNodeID ID; 11440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQuals::Profile(ID, TypeNode, Quals); 11450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void *InsertPos = 0; 11460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ExtQuals *EQ = ExtQualNodes.FindNodeOrInsertPos(ID, InsertPos)) { 11470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(EQ->getQualifiers() == Quals); 11480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(EQ, Fast); 11490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 11500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 11510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11526b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtQuals *New = new (*this, TypeAlignment) ExtQuals(*this, TypeNode, Quals); 11530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQualNodes.InsertNode(New, InsertPos); 11540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(New, Fast); 11550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 11560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 11570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11580953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getVolatileType(QualType T) { 11590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanT = getCanonicalType(T); 11600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (CanT.isVolatileQualified()) return T; 11610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 11630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 11640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addVolatile(); 11650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 11670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 11680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1169f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 1170f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 1171f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 1172f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 1173b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 11740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 11750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 11760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 11770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 11781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an address space specified, it cannot get 11800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 11810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasAddressSpace() && 11820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot be in multiple addr spaces!"); 11830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addAddressSpace(AddressSpace); 11841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11850953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1186ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 1187ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1188b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 11890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr) { 1190d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 1191b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 1192d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 11931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11944027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 11956217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 119658f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff if (Pointee->isAnyPointerType()) { 11974027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 11984027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 11994027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 12004027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 12011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 12030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 12040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 12050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 12061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an ObjCGC specified, it cannot get 12080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 12090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasObjCGCAttr() && 12100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot have multiple ObjCGCs!"); 12110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addObjCGCAttr(GCAttr); 12121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1214d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1215a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 1216ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregorstatic QualType getNoReturnCallConvType(ASTContext& Context, QualType T, 1217ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor bool AddNoReturn, 1218ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv CallConv) { 12190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType ResultType; 122043c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (const PointerType *Pointer = T->getAs<PointerType>()) { 122143c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor QualType Pointee = Pointer->getPointeeType(); 1222ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = getNoReturnCallConvType(Context, Pointee, AddNoReturn, 1223ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallConv); 122443c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (ResultType == Pointee) 122543c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1226ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1227ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getPointerType(ResultType); 122843c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else if (const BlockPointerType *BlockPointer 122943c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor = T->getAs<BlockPointerType>()) { 123043c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor QualType Pointee = BlockPointer->getPointeeType(); 1231ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = getNoReturnCallConvType(Context, Pointee, AddNoReturn, 1232ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallConv); 123343c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (ResultType == Pointee) 123443c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1235ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1236ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getBlockPointerType(ResultType); 1237ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor } else if (const FunctionType *F = T->getAs<FunctionType>()) { 1238ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor if (F->getNoReturnAttr() == AddNoReturn && F->getCallConv() == CallConv) 123943c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1240ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 124143c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (const FunctionNoProtoType *FNPT = dyn_cast<FunctionNoProtoType>(F)) { 1242ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getFunctionNoProtoType(FNPT->getResultType(), 1243ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor AddNoReturn, CallConv); 12440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else { 124543c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor const FunctionProtoType *FPT = cast<FunctionProtoType>(F); 12460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType 1247ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor = Context.getFunctionType(FPT->getResultType(), FPT->arg_type_begin(), 1248ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getNumArgs(), FPT->isVariadic(), 1249ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getTypeQuals(), 1250ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->hasExceptionSpec(), 1251ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->hasAnyExceptionSpec(), 1252ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getNumExceptions(), 1253ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->exception_begin(), 1254ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor AddNoReturn, CallConv); 12550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 125643c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else 125743c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1258ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1259ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return Context.getQualifiedType(ResultType, T.getLocalQualifiers()); 1260ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 1261ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1262ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getNoReturnType(QualType T, bool AddNoReturn) { 1263ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return getNoReturnCallConvType(*this, T, AddNoReturn, T.getCallConv()); 1264ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 1265ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1266ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getCallConvType(QualType T, CallingConv CallConv) { 1267ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return getNoReturnCallConvType(*this, T, T.getNoReturnAttr(), CallConv); 12682455636163fdd18581d7fdae816433f886d88213Mike Stump} 12692455636163fdd18581d7fdae816433f886d88213Mike Stump 12705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 12715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 12725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 12735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 12765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 12771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 12805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 12811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1285467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1286f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 12871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1290f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12926b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ComplexType *New = new (*this, TypeAlignment) ComplexType(T, Canonical); 12935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 12955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 12995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 13005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 13015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 13025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 13035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 13045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 13051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 13091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 13115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1313467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1314f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 13151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1318f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13206b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall PointerType *New = new (*this, TypeAlignment) PointerType(T, Canonical); 13215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 13235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getBlockPointerType - Return the uniqued reference to the type for 13275618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 13285618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1329296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1330296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 13315618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 13325618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 13335618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 13341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13355618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 13365618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 13375618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 13385618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 13391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the block pointee type isn't canonical, this won't be a canonical 13415618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 13425618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 1343467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 13445618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 13451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13465618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 13475618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 13485618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1349f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13505618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 13516b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BlockPointerType *New 13526b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) BlockPointerType(T, Canonical); 13535618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 13545618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 13555618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 13565618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 13575618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 13587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 13597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 136054e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType ASTContext::getLValueReferenceType(QualType T, bool SpelledAsLValue) { 13615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 13625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 13635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 136454e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, SpelledAsLValue); 13655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13677c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 13687c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 13695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 13707c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 137154e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 137254e14c4db764c0636160d26c5bbf491637c83a76John McCall 13735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 13745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 13755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 137654e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!SpelledAsLValue || InnerRef || !T.isCanonical()) { 137754e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 137854e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getLValueReferenceType(getCanonicalType(PointeeType)); 13797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 13817c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 13827c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 13837c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13847c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 13857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13866b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall LValueReferenceType *New 138754e14c4db764c0636160d26c5bbf491637c83a76John McCall = new (*this, TypeAlignment) LValueReferenceType(T, Canonical, 138854e14c4db764c0636160d26c5bbf491637c83a76John McCall SpelledAsLValue); 13897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 13907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 139154e14c4db764c0636160d26c5bbf491637c83a76John McCall 13927c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 13937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 13947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13957c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 13967c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 13977c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 13987c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 13997c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 14007c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 140154e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, false); 14027c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 14037c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 14047c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 14057c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 14067c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 14077c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 140854e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 140954e14c4db764c0636160d26c5bbf491637c83a76John McCall 14107c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 14117c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 14127c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 141354e14c4db764c0636160d26c5bbf491637c83a76John McCall if (InnerRef || !T.isCanonical()) { 141454e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 141554e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getRValueReferenceType(getCanonicalType(PointeeType)); 14167c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 14175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 14187c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 14197c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1420f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14236b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall RValueReferenceType *New 14246b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); 14255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 14267c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 14275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 14285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1430f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1431f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 14321eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) { 1433f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1434f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1435f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1436f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1437f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1438f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1439f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1440f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1441f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1442f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1443f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1444f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1445f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 144687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor if (!T.isCanonical() || !Cls->isCanonicalUnqualified()) { 1447f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1448f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1449f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1450f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1451f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1452f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1453f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 14546b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall MemberPointerType *New 14556b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); 1456f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1457f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1458f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1459f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1460f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 14611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getConstantArrayType - Return the unique reference to the type for an 1462fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 14631eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getConstantArrayType(QualType EltTy, 146438aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1465c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1466c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1467923d56d436f750bc1f29db50e641078725558a1bSebastian Redl assert((EltTy->isDependentType() || 1468923d56d436f750bc1f29db50e641078725558a1bSebastian Redl EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && 1469587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1470587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 147138aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 147238aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 147338aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 147438aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 14751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 14770be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 14781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 14801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ConstantArrayType *ATP = 14817192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 14825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 14831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 14855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 14865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1487467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 14881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1489c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 14905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 14911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ConstantArrayType *NewIP = 14927192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1493f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14966b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType *New = new(*this,TypeAlignment) 14976b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 14987192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 14995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 15005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 15015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1503bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1504bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 15057e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 15067e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1507c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 15087e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 15097e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1510c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1511c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1512c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 15136b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType *New = new(*this, TypeAlignment) 15146b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType(EltTy, QualType(), NumElts, ASM, EltTypeQuals, Brackets); 1515c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1516c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1517c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1518c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1519c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1520c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1521898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1522898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 152304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor/// type. 15247e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 15257e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1526898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 15277e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 15287e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1529cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor assert((!NumElts || NumElts->isTypeDependent() || 1530cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor NumElts->isValueDependent()) && 1531898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1532898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 153304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor void *InsertPos = 0; 1534cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayType *Canon = 0; 1535789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor llvm::FoldingSetNodeID ID; 1536cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1537cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor if (NumElts) { 1538cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // Dependently-sized array types that do not have a specified 1539cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // number of elements will have their sizes deduced from an 1540cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // initializer. 1541cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayType::Profile(ID, *this, getCanonicalType(EltTy), ASM, 1542cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor EltTypeQuals, NumElts); 1543cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1544cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor Canon = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1545cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor } 1546cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 154704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *New; 154804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (Canon) { 154904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // We already have a canonical version of this array type; use it as 155004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // the canonical type for a newly-built type. 15516b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15526b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(Canon, 0), 15536b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 155404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 155504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType CanonEltTy = getCanonicalType(EltTy); 155604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (CanonEltTy == EltTy) { 15576b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15586b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(), 15596b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 1560cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1561789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (NumElts) { 1562789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentSizedArrayType *CanonCheck 1563789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1564789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CanonCheck && "Dependent-sized canonical array type broken"); 1565789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CanonCheck; 1566cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayTypes.InsertNode(New, InsertPos); 1567789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 156804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 156904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType Canon = getDependentSizedArrayType(CanonEltTy, NumElts, 157004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor ASM, EltTypeQuals, 157104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor SourceRange()); 15726b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15736b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, Canon, 15746b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 157504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 157604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 15771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1578898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1579898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1580898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1581898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1582c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1583c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1584c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1585c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 15860be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1587c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1588c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 15891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (IncompleteArrayType *ATP = 1590c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1591c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1592c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1593c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1594c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1595c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1596c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1597467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 1598f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 15992bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1600c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1601c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1602c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1603c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1604f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16052bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1606c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 16076b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType *New = new (*this, TypeAlignment) 16086b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType(EltTy, Canonical, ASM, EltTypeQuals); 1609c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1610c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1611c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1612c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1613fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1614fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 161573322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 161673322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 161782287d19ded35248c4ce6a425ce74116a13ce44eJohn ThompsonQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts, 161882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson bool IsAltiVec, bool IsPixel) { 16195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 16201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1621f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 162273322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 16231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 16255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 162682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VectorType::Profile(ID, vecType, NumElts, Type::Vector, 162782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson IsAltiVec, IsPixel); 16285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 16305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 16315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 16335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 16345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 163582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson if (!vecType.isCanonical() || IsAltiVec || IsPixel) { 163682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Canonical = getVectorType(getCanonicalType(vecType), 163782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson NumElts, false, false); 16381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 16405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1641f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16436b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType *New = new (*this, TypeAlignment) 164482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VectorType(vecType, NumElts, Canonical, IsAltiVec, IsPixel); 16455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 16465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 16475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 16485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1650213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 165173322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1652213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 165373322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 16541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1655f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1656213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 16571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 165873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 165973322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 166082287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VectorType::Profile(ID, vecType, NumElts, Type::ExtVector, false, false); 166173322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 166273322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 166373322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 166473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 166573322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 166673322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 166773322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 1668467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!vecType.isCanonical()) { 1669213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 16701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 167173322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 167273322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1673f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 167473322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 16756b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType *New = new (*this, TypeAlignment) 16766b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType(vecType, NumElts, Canonical); 167773322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 167873322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 167973322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 168073322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 168173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 16821eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 16839cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 16849cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 16852ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor llvm::FoldingSetNodeID ID; 16861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), 16872ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr); 16881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16892ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor void *InsertPos = 0; 16902ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *Canon 16912ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 16922ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *New; 16932ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (Canon) { 16942ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // We already have a canonical version of this array type; use it as 16952ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // the canonical type for a newly-built type. 16966b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16976b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), 16986b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall SizeExpr, AttrLoc); 16992ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 17002ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType CanonVecTy = getCanonicalType(vecType); 17012ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (CanonVecTy == vecType) { 17026b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 17036b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, 17046b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall AttrLoc); 1705789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 1706789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentSizedExtVectorType *CanonCheck 1707789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1708789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CanonCheck && "Dependent-sized ext_vector canonical type broken"); 1709789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CanonCheck; 17102ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorTypes.InsertNode(New, InsertPos); 17112ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 17122ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType Canon = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, 17132ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SourceLocation()); 17146b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 17156b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, Canon, SizeExpr, AttrLoc); 17162ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 17172ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 17181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17199cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 17209cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 17219cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 17229cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 172372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 17245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1725ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getFunctionNoProtoType(QualType ResultTy, bool NoReturn, 1726ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv CallConv) { 17275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 17285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 17295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 1730f82b4e85b1219295cad4b5851b035575bc293010John McCall FunctionNoProtoType::Profile(ID, ResultTy, NoReturn, CallConv); 17311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 17331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionNoProtoType *FT = 173472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 17355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 17361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1738ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor if (!ResultTy.isCanonical() || 173904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall getCanonicalCallConv(CallConv) != CallConv) { 1740ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy), NoReturn, 174104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall getCanonicalCallConv(CallConv)); 17421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 174472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 174572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1746f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 17475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17496b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType *New = new (*this, TypeAlignment) 1750f82b4e85b1219295cad4b5851b035575bc293010John McCall FunctionNoProtoType(ResultTy, Canonical, NoReturn, CallConv); 17515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 175272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 17535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 17545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 17575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 175861710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1759971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1760465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1761465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 1762ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor const QualType *ExArray, bool NoReturn, 1763ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv CallConv) { 17645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 17655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 17665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 176772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1768465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1769f82b4e85b1219295cad4b5851b035575bc293010John McCall NumExs, ExArray, NoReturn, CallConv); 17705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 17721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionProtoType *FTP = 177372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 17745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1775465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1776465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 177754e14c4db764c0636160d26c5bbf491637c83a76John McCall bool isCanonical = !hasExceptionSpec && ResultTy.isCanonical(); 17785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 177954e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!ArgArray[i].isCanonicalAsParam()) 17805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 17815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1783465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 17845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 178504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!isCanonical || getCanonicalCallConv(CallConv) != CallConv) { 17865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 17875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 17885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 178954e14c4db764c0636160d26c5bbf491637c83a76John McCall CanonicalArgs.push_back(getCanonicalParamType(ArgArray[i])); 1790465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1791f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1792beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 179347259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor isVariadic, TypeQuals, false, 1794ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor false, 0, 0, NoReturn, 179504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall getCanonicalCallConv(CallConv)); 1796465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 17975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 179872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 179972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1800f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 18015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1802465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 180372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1804465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1805465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 18061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FunctionProtoType *FTP = 1807465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1808465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 18096b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumExs*sizeof(QualType), TypeAlignment); 181072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1811465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1812ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ExArray, NumExs, Canonical, NoReturn, CallConv); 18135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 181472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 18155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 18165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 18175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18182ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 18192ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 182019c8576b7328f4dc2d07682f5da552875c1912efJohn McCallQualType ASTContext::getTypeDeclType(const TypeDecl *Decl, 182119c8576b7328f4dc2d07682f5da552875c1912efJohn McCall const TypeDecl* PrevDecl) { 18221e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 18232ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 18241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 182519c8576b7328f4dc2d07682f5da552875c1912efJohn McCall if (const TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 18262ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1827fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1828fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 182919c8576b7328f4dc2d07682f5da552875c1912efJohn McCall } else if (const ObjCInterfaceDecl *ObjCInterface 18309fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump = dyn_cast<ObjCInterfaceDecl>(Decl)) 18312ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 183249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 183319c8576b7328f4dc2d07682f5da552875c1912efJohn McCall if (const RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1834566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1835566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1836f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 18376b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) RecordType(Record); 183819c8576b7328f4dc2d07682f5da552875c1912efJohn McCall } else if (const EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1839566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1840566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1841f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 18426b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) EnumType(Enum); 184319c8576b7328f4dc2d07682f5da552875c1912efJohn McCall } else if (const UnresolvedUsingTypenameDecl *Using = 1844ed97649e9574b9d854fa4d6109c9333ae0993554John McCall dyn_cast<UnresolvedUsingTypenameDecl>(Decl)) { 1845ed97649e9574b9d854fa4d6109c9333ae0993554John McCall Decl->TypeForDecl = new (*this, TypeAlignment) UnresolvedUsingType(Using); 18469fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else 18472ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 184849aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 18494b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 185049aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 18512ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 18522ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 18535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 18545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 185519c8576b7328f4dc2d07682f5da552875c1912efJohn McCallQualType ASTContext::getTypedefType(const TypedefDecl *Decl) { 18565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 18571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1858f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 18596b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new(*this, TypeAlignment) 18606b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypedefType(Type::Typedef, Decl, Canonical); 18615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 18625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 18635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 18645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 186549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// \brief Retrieve a substitution-result type. 186649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallQualType 186749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallASTContext::getSubstTemplateTypeParmType(const TemplateTypeParmType *Parm, 186849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType Replacement) { 1869467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(Replacement.isCanonical() 187049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall && "replacement types must always be canonical"); 187149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 187249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall llvm::FoldingSetNodeID ID; 187349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType::Profile(ID, Parm, Replacement); 187449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall void *InsertPos = 0; 187549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType *SubstParm 187649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall = SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 187749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 187849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall if (!SubstParm) { 187949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstParm = new (*this, TypeAlignment) 188049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType(Parm, Replacement); 188149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall Types.push_back(SubstParm); 188249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos); 188349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 188449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 188549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return QualType(SubstParm, 0); 188649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall} 188749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 1888fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 18891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parameter or parameter pack with the given depth, index, and (optionally) 189076e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 18911eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 189276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1893fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1894fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 189576e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1896fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 18971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateTypeParmType *TypeParm 1898fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1899fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1900fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1901fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 19021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 190376e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 190476e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 19056b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 19066b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack, Name, Canon); 1907789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 1908789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor TemplateTypeParmType *TypeCheck 1909789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1910789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!TypeCheck && "Template type parameter canonical type broken"); 1911789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)TypeCheck; 191276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 19136b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 19146b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack); 1915fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1916fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1917fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1918fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1919fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1920fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1921fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 19221eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 19237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 1924d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo &Args, 1925833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall QualType Canon) { 1926d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall unsigned NumArgs = Args.size(); 1927d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 1928833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall llvm::SmallVector<TemplateArgument, 4> ArgVec; 1929833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.reserve(NumArgs); 1930833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall for (unsigned i = 0; i != NumArgs; ++i) 1931833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.push_back(Args[i].getArgument()); 1932833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1933833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return getTemplateSpecializationType(Template, ArgVec.data(), NumArgs, Canon); 1934833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall} 1935833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1936833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallQualType 1937833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallASTContext::getTemplateSpecializationType(TemplateName Template, 19387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 19397532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 19407532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 1941b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (!Canon.isNull()) 1942b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = getCanonicalType(Canon); 1943b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor else { 1944b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor // Build the canonical template specialization type. 19451275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateName CanonTemplate = getCanonicalTemplateName(Template); 19461275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::SmallVector<TemplateArgument, 4> CanonArgs; 19471275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.reserve(NumArgs); 19481275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor for (unsigned I = 0; I != NumArgs; ++I) 19491275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.push_back(getCanonicalTemplateArgument(Args[I])); 19501275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 19511275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Determine whether this canonical template specialization type already 19521275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // exists. 19531275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::FoldingSetNodeID ID; 19541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType::Profile(ID, CanonTemplate, 1955828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor CanonArgs.data(), NumArgs, *this); 19561275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 19571275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor void *InsertPos = 0; 19581275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateSpecializationType *Spec 19591275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 19601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19611275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor if (!Spec) { 19621275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate a new canonical template specialization type. 19631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 19641275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor sizeof(TemplateArgument) * NumArgs), 19656b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 19661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Spec = new (Mem) TemplateSpecializationType(*this, CanonTemplate, 19671275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.data(), NumArgs, 1968b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon); 19691275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Types.push_back(Spec); 19701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 19711275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 19721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1973b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (Canon.isNull()) 1974b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = QualType(Spec, 0); 19751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(Canon->isDependentType() && 19761275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor "Non-dependent template-id type must have a canonical type"); 1977b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor } 1978fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 19791275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate the (non-canonical) template specialization type, but don't 19801275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // try to unique it: these types typically have location information that 19811275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // we don't unique and don't want to lose. 19821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 198340808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 19846b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 19851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType *Spec 19861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = new (Mem) TemplateSpecializationType(*this, Template, Args, NumArgs, 1987828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor Canon); 19881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 198955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 19901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(Spec, 0); 199155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 199255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 19931eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 1994ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1995e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1996e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1997ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1998e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1999e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 20001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualifiedNameType *T 2001e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 2002e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 2003e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 2004e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 2005789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor QualType Canon = NamedType; 2006789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (!Canon.isCanonical()) { 2007789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor Canon = getCanonicalType(NamedType); 2008789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor QualifiedNameType *CheckT 2009789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 2010789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckT && "Qualified name canonical type broken"); 2011789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckT; 2012789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 2013789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 2014789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor T = new (*this) QualifiedNameType(NNS, NamedType, Canon); 2015e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 2016e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 2017e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 2018e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 2019e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 20201eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 2021d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 2022d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 2023d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 2024d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2025d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 2026d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 2027d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 2028d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 2029d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2030d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2031d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 2032d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 2033d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2034d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 20351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypenameType *T 2036d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 2037d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 2038d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 2039d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2040d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 2041d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 2042d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 20431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 2044d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2045d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 20461eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 20471eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpASTContext::getTypenameType(NestedNameSpecifier *NNS, 20481734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 20491734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 20501734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 20511734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 2052789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor llvm::FoldingSetNodeID ID; 2053789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 2054789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 2055789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor void *InsertPos = 0; 2056789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor TypenameType *T 2057789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 2058789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (T) 2059789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor return QualType(T, 0); 2060789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 20611734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 20621734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 20631734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 20641734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 20651734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 2066183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall = CanonType->getAs<TemplateSpecializationType>(); 20671734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 20681734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 20691734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 20701734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 20711734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 2072789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor TypenameType *CheckT 2073789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 2074789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckT && "Typename canonical type is broken"); (void)CheckT; 2075789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 20761734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20771734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 20781734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 20791734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 20801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 20811734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 20821734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20837da2431c23ef1ee8acb114e39692246e1801afc2John McCallQualType 20847da2431c23ef1ee8acb114e39692246e1801afc2John McCallASTContext::getElaboratedType(QualType UnderlyingType, 20857da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::TagKind Tag) { 20867da2431c23ef1ee8acb114e39692246e1801afc2John McCall llvm::FoldingSetNodeID ID; 20877da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::Profile(ID, UnderlyingType, Tag); 20881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20897da2431c23ef1ee8acb114e39692246e1801afc2John McCall void *InsertPos = 0; 20907da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 20917da2431c23ef1ee8acb114e39692246e1801afc2John McCall if (T) 20927da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 20937da2431c23ef1ee8acb114e39692246e1801afc2John McCall 2094789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor QualType Canon = UnderlyingType; 2095789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (!Canon.isCanonical()) { 2096789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor Canon = getCanonicalType(Canon); 2097789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor ElaboratedType *CheckT = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 2098789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckT && "Elaborated canonical type is broken"); (void)CheckT; 2099789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 21007da2431c23ef1ee8acb114e39692246e1801afc2John McCall 21017da2431c23ef1ee8acb114e39692246e1801afc2John McCall T = new (*this) ElaboratedType(UnderlyingType, Tag, Canon); 21027da2431c23ef1ee8acb114e39692246e1801afc2John McCall Types.push_back(T); 21037da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedTypes.InsertNode(T, InsertPos); 21047da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 21057da2431c23ef1ee8acb114e39692246e1801afc2John McCall} 21067da2431c23ef1ee8acb114e39692246e1801afc2John McCall 210788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 210888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 210988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 211088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 21112e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 211288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 211388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 211454e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic bool areSortedAndUniqued(ObjCProtocolDecl **Protocols, 211554e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned NumProtocols) { 211654e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols == 0) return true; 211754e14c4db764c0636160d26c5bbf491637c83a76John McCall 211854e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 1; i != NumProtocols; ++i) 211954e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!CmpProtocolNames(Protocols[i-1], Protocols[i])) 212054e14c4db764c0636160d26c5bbf491637c83a76John McCall return false; 212154e14c4db764c0636160d26c5bbf491637c83a76John McCall return true; 212254e14c4db764c0636160d26c5bbf491637c83a76John McCall} 212354e14c4db764c0636160d26c5bbf491637c83a76John McCall 212454e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic void SortAndUniqueProtocols(ObjCProtocolDecl **Protocols, 212588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 212688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 21271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 212888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 212988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 213088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 213188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 213288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 213388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 213488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 213588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2136d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 2137d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 213814108da7f7fc059772711e4ffee1322a27b152a7Steve NaroffQualType ASTContext::getObjCObjectPointerType(QualType InterfaceT, 21391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCProtocolDecl **Protocols, 2140d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff unsigned NumProtocols) { 2141d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff llvm::FoldingSetNodeID ID; 214214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ObjCObjectPointerType::Profile(ID, InterfaceT, Protocols, NumProtocols); 2143d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 2144d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 2145d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (ObjCObjectPointerType *QT = 2146d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 2147d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QT, 0); 2148d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 214954e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 215054e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 215154e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!InterfaceT.isCanonical() || 215254e14c4db764c0636160d26c5bbf491637c83a76John McCall !areSortedAndUniqued(Protocols, NumProtocols)) { 215354e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!areSortedAndUniqued(Protocols, NumProtocols)) { 215454e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 215554e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 215654e14c4db764c0636160d26c5bbf491637c83a76John McCall 215754e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 215854e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 215954e14c4db764c0636160d26c5bbf491637c83a76John McCall 216054e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 216154e14c4db764c0636160d26c5bbf491637c83a76John McCall &Sorted[0], UniqueCount); 216254e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 216354e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 216454e14c4db764c0636160d26c5bbf491637c83a76John McCall Protocols, NumProtocols); 216554e14c4db764c0636160d26c5bbf491637c83a76John McCall } 216654e14c4db764c0636160d26c5bbf491637c83a76John McCall 216754e14c4db764c0636160d26c5bbf491637c83a76John McCall // Regenerate InsertPos. 216854e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 216954e14c4db764c0636160d26c5bbf491637c83a76John McCall } 217054e14c4db764c0636160d26c5bbf491637c83a76John McCall 2171fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor // No match. 2172fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor unsigned Size = sizeof(ObjCObjectPointerType) 2173fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor + NumProtocols * sizeof(ObjCProtocolDecl *); 2174fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor void *Mem = Allocate(Size, TypeAlignment); 2175fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor ObjCObjectPointerType *QType = new (Mem) ObjCObjectPointerType(Canonical, 2176fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor InterfaceT, 2177fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor Protocols, 2178fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor NumProtocols); 21791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2180d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 2181d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 2182d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QType, 0); 2183d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 218488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2185c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// getObjCInterfaceType - Return the unique reference to the type for the 2186c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// specified ObjC interface decl. The list of protocols is optional. 2187c15cb2af27514ecc879daba9aa01389c5203685dSteve NaroffQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, 2188a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 21894b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 2190c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 21911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21924b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 2193c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (ObjCInterfaceType *QT = 2194c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 21954b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 21961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 219754e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 219854e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 219954e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols && !areSortedAndUniqued(Protocols, NumProtocols)) { 220054e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 220154e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 22024b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 220354e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 220454e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 220524fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 220654e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCInterfaceType(Decl, &Sorted[0], UniqueCount); 220754e14c4db764c0636160d26c5bbf491637c83a76John McCall 220854e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos); 220954e14c4db764c0636160d26c5bbf491637c83a76John McCall } 221054e14c4db764c0636160d26c5bbf491637c83a76John McCall 2211fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor unsigned Size = sizeof(ObjCInterfaceType) 2212fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor + NumProtocols * sizeof(ObjCProtocolDecl *); 2213fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor void *Mem = Allocate(Size, TypeAlignment); 2214fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor ObjCInterfaceType *QType = new (Mem) ObjCInterfaceType(Canonical, 2215fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor const_cast<ObjCInterfaceDecl*>(Decl), 2216fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor Protocols, 2217fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor NumProtocols); 221824fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 221924fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis Types.push_back(QType); 222054e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.InsertNode(QType, InsertPos); 222124fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis return QualType(QType, 0); 222224fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis} 222324fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 222472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 222572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 22269752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 22271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// DeclRefExpr's. This doesn't effect the type checker, since it operates 22289752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 222972564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 2230dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType *toe; 2231b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (tofExpr->isTypeDependent()) { 2232b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor llvm::FoldingSetNodeID ID; 2233b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType::Profile(ID, *this, tofExpr); 22341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2235b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor void *InsertPos = 0; 2236b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType *Canon 2237b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); 2238b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (Canon) { 2239b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // We already have a "canonical" version of an identical, dependent 2240b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // typeof(expr) type. Use that as our canonical type. 22416b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, 2242b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor QualType((TypeOfExprType*)Canon, 0)); 2243b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2244b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor else { 2245b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // Build a new, canonical typeof(expr) type. 22466b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon 22476b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) DependentTypeOfExprType(*this, tofExpr); 2248b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); 2249b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor toe = Canon; 2250b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2251b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } else { 2252dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType Canonical = getCanonicalType(tofExpr->getType()); 22536b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, Canonical); 2254dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 22559752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 22569752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 2257d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2258d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 22599752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 22609752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 22619752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 22621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 22639752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 2264d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 2265f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 22666b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeOfType *tot = new (*this, TypeAlignment) TypeOfType(tofType, Canonical); 22679752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 22689752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 2269d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2270d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 227160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 227260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 227360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 2274a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 2275a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 22761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 227760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 227860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 227960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 228060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 228160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 228260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 228360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 228460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 228560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 228660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 228760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 228860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 228960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 229060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 229160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 22921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 229360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 22941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 229660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 229760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 229860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 22991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 230060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 230160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 230260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 2303395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 2304395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 2305395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 23061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 2307395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 2308395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 2309dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor DecltypeType *dt; 23109d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (e->isTypeDependent()) { 23119d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor llvm::FoldingSetNodeID ID; 23129d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType::Profile(ID, *this, e); 23131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23149d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor void *InsertPos = 0; 23159d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType *Canon 23169d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); 23179d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (Canon) { 23189d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // We already have a "canonical" version of an equivalent, dependent 23199d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // decltype type. Use that as our canonical type. 23206b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, DependentTy, 23219d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor QualType((DecltypeType*)Canon, 0)); 23229d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 23239d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor else { 23249d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // Build a new, canonical typeof(expr) type. 23256b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon = new (*this, TypeAlignment) DependentDecltypeType(*this, e); 23269d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeTypes.InsertNode(Canon, InsertPos); 23279d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor dt = Canon; 23289d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 23299d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } else { 2330dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType T = getDecltypeForExpr(e, *this); 23316b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, T, getCanonicalType(T)); 2332dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 2333395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 2334395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 2335395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 2336395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 23375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 23385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 2339e607ed068334bacb8d7b093996b4671c6ca79e25Mike StumpQualType ASTContext::getTagDeclType(const TagDecl *Decl) { 2340d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 2341e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // FIXME: What is the design on getTagDeclType when it requires casting 2342e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // away const? mutable? 2343e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump return getTypeDeclType(const_cast<TagDecl*>(Decl)); 23445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 23471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 23481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// needs to agree with the definition in <stddef.h>. 2349a3ccda58913cc1a4b8564e349448b12acc462da7Anders CarlssonCanQualType ASTContext::getSizeType() const { 2350b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 23515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 235364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 235464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 235564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 235664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 235764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 235864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 235964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 236064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 236164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 236264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 236364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 236464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 236564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 236664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 23678b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 23688b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 23698b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 2370b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 23718b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 23728b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 2373e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2374e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 2375e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2376e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 237754e14c4db764c0636160d26c5bbf491637c83a76John McCallCanQualType ASTContext::getCanonicalParamType(QualType T) { 237854e14c4db764c0636160d26c5bbf491637c83a76John McCall // Push qualifiers into arrays, and then discard any remaining 237954e14c4db764c0636160d26c5bbf491637c83a76John McCall // qualifiers. 238054e14c4db764c0636160d26c5bbf491637c83a76John McCall T = getCanonicalType(T); 238154e14c4db764c0636160d26c5bbf491637c83a76John McCall const Type *Ty = T.getTypePtr(); 238254e14c4db764c0636160d26c5bbf491637c83a76John McCall 238354e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Result; 238454e14c4db764c0636160d26c5bbf491637c83a76John McCall if (isa<ArrayType>(Ty)) { 238554e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getArrayDecayedType(QualType(Ty,0)); 238654e14c4db764c0636160d26c5bbf491637c83a76John McCall } else if (isa<FunctionType>(Ty)) { 238754e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getPointerType(QualType(Ty, 0)); 238854e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 238954e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = QualType(Ty, 0); 239054e14c4db764c0636160d26c5bbf491637c83a76John McCall } 239154e14c4db764c0636160d26c5bbf491637c83a76John McCall 239254e14c4db764c0636160d26c5bbf491637c83a76John McCall return CanQualType::CreateUnsafe(Result); 239354e14c4db764c0636160d26c5bbf491637c83a76John McCall} 239454e14c4db764c0636160d26c5bbf491637c83a76John McCall 239577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 239677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 239777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 239877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 239977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 240077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 240150d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas GregorCanQualType ASTContext::getCanonicalType(QualType T) { 24020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 24030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ptr = Quals.strip(T); 24040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanType = Ptr->getCanonicalTypeInternal(); 24050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 24060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // The canonical internal type will be the canonical type *except* 24070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // that we push type qualifiers down through array types. 24081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If there are no new qualifiers to push down, stop here. 24100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!Quals.hasQualifiers()) 241150d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(CanType); 2412c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 24130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the type qualifiers are on an array type, get the canonical 24140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type of the array with the qualifiers applied to the element 24150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type. 2416c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 2417c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 24180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return CanQualType::CreateUnsafe(getQualifiedType(CanType, Quals)); 24191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2420c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2421c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 24220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(AT->getElementType(), Quals); 2423c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 24241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2425c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 242650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 242750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getConstantArrayType(NewEltTy, CAT->getSize(), 242850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor CAT->getSizeModifier(), 24290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2430c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 243150d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 243250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 24330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 24341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2435898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 243650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 243750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getDependentSizedArrayType(NewEltTy, 2438bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2439bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 244050d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getSizeModifier(), 24410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 244287a924e37dc40c6e3e2b33d1dbd646aeccf4c15bDouglas Gregor DSAT->getBracketsRange())->getCanonicalTypeInternal()); 2443898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2444c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 244550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(getVariableArrayType(NewEltTy, 2446bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 2447bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr()->Retain() : 0, 244850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getSizeModifier(), 24490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 245050d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getBracketsRange())); 2451c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 2452c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 245328e318cc6008c2bc008f0caee70dc736a03d6289Chandler CarruthQualType ASTContext::getUnqualifiedArrayType(QualType T, 245428e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth Qualifiers &Quals) { 24555535c38a2fcface6c13bc8bbeca66882de2fa227Chandler Carruth Quals = T.getQualifiers(); 245628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (!isa<ArrayType>(T)) { 24575535c38a2fcface6c13bc8bbeca66882de2fa227Chandler Carruth return T.getUnqualifiedType(); 245828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 245928e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 246028e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth const ArrayType *AT = cast<ArrayType>(T); 246128e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth QualType Elt = AT->getElementType(); 2462c1ae0a8b0022a9fbb50d3413139f36ec5d8a63beZhongxing Xu QualType UnqualElt = getUnqualifiedArrayType(Elt, Quals); 246328e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (Elt == UnqualElt) 246428e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return T; 246528e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 246628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(T)) { 246728e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getConstantArrayType(UnqualElt, CAT->getSize(), 246828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth CAT->getSizeModifier(), 0); 246928e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 247028e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 247128e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(T)) { 247228e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getIncompleteArrayType(UnqualElt, IAT->getSizeModifier(), 0); 247328e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 247428e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 247528e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth const DependentSizedArrayType *DSAT = cast<DependentSizedArrayType>(T); 247628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getDependentSizedArrayType(UnqualElt, DSAT->getSizeExpr()->Retain(), 247728e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth DSAT->getSizeModifier(), 0, 247828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth SourceRange()); 247928e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth} 248028e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 248180ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCallDeclarationName ASTContext::getNameForTemplate(TemplateName Name) { 248280ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (TemplateDecl *TD = Name.getAsTemplateDecl()) 248380ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return TD->getDeclName(); 248480ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 248580ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (DependentTemplateName *DTN = Name.getAsDependentTemplateName()) { 248680ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (DTN->isIdentifier()) { 248780ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return DeclarationNames.getIdentifier(DTN->getIdentifier()); 248880ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } else { 248980ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return DeclarationNames.getCXXOperatorName(DTN->getOperator()); 249080ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } 249180ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } 249280ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 24930bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall OverloadedTemplateStorage *Storage = Name.getAsOverloadedTemplate(); 24940bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(Storage); 24950bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall return (*Storage->begin())->getDeclName(); 249680ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall} 249780ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 249825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 249925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 250025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 250125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 250297fbaa2a38804268a024f1a104b43fcf8b4411b0Argyrios Kyrtzidis return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); 250325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 25040bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(!Name.getAsOverloadedTemplate()); 25051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 250625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 250725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 250825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 250925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 251025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 2511db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregorbool ASTContext::hasSameTemplateName(TemplateName X, TemplateName Y) { 2512db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor X = getCanonicalTemplateName(X); 2513db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor Y = getCanonicalTemplateName(Y); 2514db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor return X.getAsVoidPointer() == Y.getAsVoidPointer(); 2515db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor} 2516db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor 25171eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateArgument 25181275ae098acda31fe0e434510c729fcfed0458a1Douglas GregorASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) { 25191275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor switch (Arg.getKind()) { 25201275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Null: 25211275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 25221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25231275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Expression: 25241275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 25251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25261275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Declaration: 2527833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(Arg.getAsDecl()->getCanonicalDecl()); 25281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2529788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor case TemplateArgument::Template: 2530788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor return TemplateArgument(getCanonicalTemplateName(Arg.getAsTemplate())); 2531788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor 25321275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Integral: 2533833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(*Arg.getAsIntegral(), 25341275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getIntegralType())); 25351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25361275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Type: 2537833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(getCanonicalType(Arg.getAsType())); 25381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25391275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Pack: { 25401275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Allocate in ASTContext 25411275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument *CanonArgs = new TemplateArgument[Arg.pack_size()]; 25421275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor unsigned Idx = 0; 25431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (TemplateArgument::pack_iterator A = Arg.pack_begin(), 25441275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor AEnd = Arg.pack_end(); 25451275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor A != AEnd; (void)++A, ++Idx) 25461275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs[Idx] = getCanonicalTemplateArgument(*A); 25471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25481275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument Result; 25491275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Result.setArgumentPack(CanonArgs, Arg.pack_size(), false); 25501275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Result; 25511275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 25521275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 25531275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 25541275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Silence GCC warning 25551275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor assert(false && "Unhandled template argument kind"); 25561275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(); 25571275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor} 25581275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 2559d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 2560d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 25611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!NNS) 2562d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2563d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2564d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 2565d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 2566d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 25671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 2568d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 2569d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 2570d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2571d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 2572d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 2573d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 2574d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 2575d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2576d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 2577d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 2578d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 25791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 0, 25801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 2581d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 2582d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2583d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2584d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 2585d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 2586d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2587d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2588d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2589d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2590d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2591d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2592d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2593c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2594c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2595c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 2596a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor if (!T.hasLocalQualifiers()) { 2597c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2598c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2599c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2600c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 26011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Handle the common negative case fast. 2603c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 26040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!isa<ArrayType>(CType)) 2605c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 26061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Apply any qualifiers from the array type to the element type. This 2608c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2609c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 26101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2611c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2612c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 261350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor // we must propagate them down into the element type. 26140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 26150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 26160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ty = Qs.strip(T.getDesugaredType()); 26171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2618c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2619c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 26200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ATy == 0 || Qs.empty()) 2621c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 26221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2623c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2624c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2625c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2626c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 26270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(ATy->getElementType(), Qs); 26281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2629c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2630c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2631c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 26320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2633c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2634c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2635c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 26360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 2637898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 26381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const DependentSizedArrayType *DSAT 2639898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2640898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 26411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getDependentSizedArrayType(NewEltTy, 2642bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2643bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 2644898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 26450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 26467e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 26471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2648c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 26497e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 2650bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 26510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getSizeExpr()->Retain() : 0, 2652c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 26530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 26547e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 265577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 265677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 265777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2658e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2659e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2660e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2661e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2662e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2663e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2664e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2665c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2666c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2667c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2668c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2669c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2670c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 26711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2672c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2673e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2674e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 26750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getQualifiedType(PtrTy, PrettyArrayType->getIndexTypeQualifiers()); 2676e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2677e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 26785e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas GregorQualType ASTContext::getBaseElementType(QualType QT) { 26790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 26805e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor while (true) { 26810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *UT = Qs.strip(QT); 26825e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor if (const ArrayType *AT = getAsArrayType(QualType(UT,0))) { 26835e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QT = AT->getElementType(); 26846dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump } else { 26850953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qs.apply(QT); 26865e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 26875e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 26885e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor} 26895e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor 2690fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders CarlssonQualType ASTContext::getBaseElementType(const ArrayType *AT) { 2691fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson QualType ElemTy = AT->getElementType(); 26921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2693fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson if (const ArrayType *AT = getAsArrayType(ElemTy)) 2694fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson return getBaseElementType(AT); 26951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26966183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 26976183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 26986183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 26990de78998e7bda473b408437053e48661b510d453Fariborz Jahanian/// getConstantArrayElementCount - Returns number of constant array elements. 27001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpuint64_t 27010de78998e7bda473b408437053e48661b510d453Fariborz JahanianASTContext::getConstantArrayElementCount(const ConstantArrayType *CA) const { 27020de78998e7bda473b408437053e48661b510d453Fariborz Jahanian uint64_t ElementCount = 1; 27030de78998e7bda473b408437053e48661b510d453Fariborz Jahanian do { 27040de78998e7bda473b408437053e48661b510d453Fariborz Jahanian ElementCount *= CA->getSize().getZExtValue(); 27050de78998e7bda473b408437053e48661b510d453Fariborz Jahanian CA = dyn_cast<ConstantArrayType>(CA->getElementType()); 27060de78998e7bda473b408437053e48661b510d453Fariborz Jahanian } while (CA); 27070de78998e7bda473b408437053e48661b510d453Fariborz Jahanian return ElementCount; 27080de78998e7bda473b408437053e48661b510d453Fariborz Jahanian} 27090de78998e7bda473b408437053e48661b510d453Fariborz Jahanian 27105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 27115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2712a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2713183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) 27145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2715a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2716183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall assert(T->getAs<BuiltinType>() && "getFloatingRank(): not a floating type"); 2717183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall switch (T->getAs<BuiltinType>()->getKind()) { 2718a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 27195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 27205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 27215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 27225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 27245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 27251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 27261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// point or a complex type (based on typeDomain/typeSize). 2727716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2728716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 27291361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 27301361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 27311361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 27321361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 27331361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2734716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2735f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2736f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2737f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2738f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2739f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 27401361b11066239ea15764a2a844405352d87296b3Chris Lattner 27411361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 27421361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 27431361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 27441361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 27451361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 27461361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 27475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 27495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 27507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 27517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 27527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 27531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 2754a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2755a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2756a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 27571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2758a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2759fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2760a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2761fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2762fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 27635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 27645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2765f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2766f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2767f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2768f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2769467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(T->isCanonicalUnqualified() && "T should be canonicalized"); 2770f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2771842aef8d942a880eeb9535d40de31a86838264cbJohn McCall T = ET->getDecl()->getPromotionType().getTypePtr(); 2772f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2773a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2774a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2775a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2776f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2777f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2778f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2779f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2780f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2781f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2782f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 27837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 27847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2785f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 27867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 27877cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 27887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 27897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2790f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 27917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 27927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2793f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 27947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 27957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2796f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 27977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 27987cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2799f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 28007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 28017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2802f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 28032df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 28042df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 28052df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2806f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2807f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2808f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 280904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \brief Whether this is a promotable bitfield reference according 281004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// to C99 6.3.1.1p2, bullet 2 (and GCC extensions). 281104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// 281204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \returns the type this bit-field will promote to, or NULL if no 281304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// promotion occurs. 281404e8357f6801e9ff52673e7e899a67bbabf9de93Eli FriedmanQualType ASTContext::isPromotableBitField(Expr *E) { 281504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman FieldDecl *Field = E->getBitField(); 281604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (!Field) 281704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 281804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 281904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman QualType FT = Field->getType(); 282004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 282104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman llvm::APSInt BitWidthAP = Field->getBitWidth()->EvaluateAsInt(*this); 282204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t BitWidth = BitWidthAP.getZExtValue(); 282304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 282404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // GCC extension compatibility: if the bit-field size is less than or equal 282504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // to the size of int, it gets promoted no matter what its type is. 282604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // For instance, unsigned long bf : 4 gets promoted to signed int. 282704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth < IntSize) 282804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return IntTy; 282904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 283004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth == IntSize) 283104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return FT->isSignedIntegerType() ? IntTy : UnsignedIntTy; 283204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 283304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // Types bigger than int are not subject to promotions, and therefore act 283404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // like the base type. 283504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // FIXME: This doesn't quite match what gcc does, but what gcc does here 283604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // is ridiculous. 283704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 283804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman} 283904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 2840a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// getPromotedIntegerType - Returns the type that Promotable will 2841a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// promote to: C99 6.3.1.1p2, assuming that Promotable is a promotable 2842a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// integer type. 2843a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType ASTContext::getPromotedIntegerType(QualType Promotable) { 2844a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(!Promotable.isNull()); 2845a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isPromotableIntegerType()); 2846842aef8d942a880eeb9535d40de31a86838264cbJohn McCall if (const EnumType *ET = Promotable->getAs<EnumType>()) 2847842aef8d942a880eeb9535d40de31a86838264cbJohn McCall return ET->getDecl()->getPromotionType(); 2848a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (Promotable->isSignedIntegerType()) 2849a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return IntTy; 2850a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t PromotableSize = getTypeSize(Promotable); 2851a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 2852a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize); 2853a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return (PromotableSize != IntSize) ? IntTy : UnsignedIntTy; 2854a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 2855a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 28561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getIntegerTypeOrder - Returns the highest ranked integer type: 28577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 28581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 28597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2860f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2861f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 28627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 28631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2864f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2865f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 28661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 28687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 28691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28707cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 28717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 28727cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 28737cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 28741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28757cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 28767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 28777cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 28787cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 28797cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 28801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28817cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 28827cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 28831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 28847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 28857cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 28867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 28877cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 28887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 28897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 28901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 28927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 28931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 28947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 28955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 289671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 289779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlssonstatic RecordDecl * 289879cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders CarlssonCreateRecordDecl(ASTContext &Ctx, RecordDecl::TagKind TK, DeclContext *DC, 289979cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson SourceLocation L, IdentifierInfo *Id) { 290079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson if (Ctx.getLangOptions().CPlusPlus) 290179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson return CXXRecordDecl::Create(Ctx, TK, DC, L, Id); 290279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson else 290379cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson return RecordDecl::Create(Ctx, TK, DC, L, Id); 290479cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson} 290579cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson 29061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// getCFConstantStringType - Return the type used for constant CFStrings. 290771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 290871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 29091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CFConstantStringTypeDecl = 291079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 291179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("NSConstantString")); 29125cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall CFConstantStringTypeDecl->startDefinition(); 291379cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson 2914f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 29151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 291671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 29170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[0] = getPointerType(IntTy.withConst()); 2918f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2919f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 292071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 29210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[2] = getPointerType(CharTy.withConst()); 292271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 29231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[3] = LongTy; 29241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 292544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 292644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 29271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 292844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 2929a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 29301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 29314afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 293217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 293344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 293444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2935838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor CFConstantStringTypeDecl->completeDefinition(); 293671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 29371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 293871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 29398467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2940b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2941319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 29426217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2943319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2944319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2945319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2946319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 29471eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getObjCFastEnumerationStateType() { 2948bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 294944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 295079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 295179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__objcFastEnumerationState")); 29525cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall ObjCFastEnumerationStateTypeDecl->startDefinition(); 29531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2954bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2955bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2956de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff getPointerType(ObjCIdTypedefType), 2957bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2958bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2959bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2960bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 29611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 296244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 29631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, 29641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCFastEnumerationStateTypeDecl, 29651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation(), 0, 2966a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 29671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 29684afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 296917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 297044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 29711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2972838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(); 2973bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 29741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2975bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2976bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2977bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2978adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike StumpQualType ASTContext::getBlockDescriptorType() { 2979adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump if (BlockDescriptorType) 2980adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 2981adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2982adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 2983adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Needs the FlagAppleBlock bit. 298479cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 298579cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__block_descriptor")); 29865cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 2987adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2988adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 2989adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2990adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2991adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2992adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2993adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 2994adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "reserved", 2995083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size" 2996adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2997adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2998adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 2; ++i) { 2999adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldDecl *Field = FieldDecl::Create(*this, 3000adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T, 3001adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump SourceLocation(), 3002adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 3003a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3004adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*BitWidth=*/0, 3005adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*Mutable=*/false); 3006adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 3007adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 3008adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3009838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3010adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3011adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = T; 3012adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3013adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 3014adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3015adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3016adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stumpvoid ASTContext::setBlockDescriptorType(QualType T) { 3017adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const RecordType *Rec = T->getAs<RecordType>(); 3018adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump assert(Rec && "Invalid BlockDescriptorType"); 3019adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = Rec->getDecl(); 3020adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3021adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3022083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike StumpQualType ASTContext::getBlockDescriptorExtendedType() { 3023083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump if (BlockDescriptorExtendedType) 3024083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 3025083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3026083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump RecordDecl *T; 3027083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump // FIXME: Needs the FlagAppleBlock bit. 302879cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 302979cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__block_descriptor_withcopydispose")); 30305cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 3031083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3032083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump QualType FieldTypes[] = { 3033083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 3034083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 3035083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy), 3036083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy) 3037083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 3038083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3039083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const char *FieldNames[] = { 3040083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "reserved", 3041083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size", 3042083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "CopyFuncPtr", 3043083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "DestroyFuncPtr" 3044083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 3045083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3046083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump for (size_t i = 0; i < 4; ++i) { 3047083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump FieldDecl *Field = FieldDecl::Create(*this, 3048083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T, 3049083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump SourceLocation(), 3050083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump &Idents.get(FieldNames[i]), 3051a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3052083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*BitWidth=*/0, 3053083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*Mutable=*/false); 3054083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T->addDecl(Field); 3055083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump } 3056083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3057838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3058083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3059083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = T; 3060083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3061083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 3062083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 3063083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3064083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stumpvoid ASTContext::setBlockDescriptorExtendedType(QualType T) { 3065083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const RecordType *Rec = T->getAs<RecordType>(); 3066083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump assert(Rec && "Invalid BlockDescriptorType"); 3067083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = Rec->getDecl(); 3068083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 3069083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3070af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stumpbool ASTContext::BlockRequiresCopying(QualType Ty) { 3071af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isBlockPointerType()) 3072af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3073af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (isObjCNSObjectType(Ty)) 3074af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3075af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isObjCObjectPointerType()) 3076af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3077af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return false; 3078af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump} 3079af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3080af7b44d847d3e44c43346d508b2e55a6254b6e9dMike StumpQualType ASTContext::BuildByRefType(const char *DeclName, QualType Ty) { 3081af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // type = struct __Block_byref_1_X { 3082ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // void *__isa; 3083af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // struct __Block_byref_1_X *__forwarding; 3084ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __flags; 3085ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __size; 308638e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__copy_helper; // as needed 308738e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__destroy_help // as needed 3088af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // int X; 3089ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // } * 3090ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3091af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump bool HasCopyAndDispose = BlockRequiresCopying(Ty); 3092af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3093af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // FIXME: Move up 30944d0d85c3370f2726c74ba0ece0a5e712830a1d82Fariborz Jahanian static unsigned int UniqueBlockByRefTypeID = 0; 3095f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 3096f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__Block_byref_" << 3097f5942a44880be26878592eb052b737579349411eBenjamin Kramer ++UniqueBlockByRefTypeID << '_' << DeclName; 3098af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump RecordDecl *T; 309979cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 310079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get(Name.str())); 3101af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->startDefinition(); 3102af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType Int32Ty = IntTy; 3103af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump assert(getIntWidth(IntTy) == 32 && "non-32bit int not supported"); 3104af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType FieldTypes[] = { 3105af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3106af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(getTagDeclType(T)), 3107af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 3108af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 3109af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3110af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3111af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Ty 3112af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 3113af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3114af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump const char *FieldNames[] = { 3115af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__isa", 3116af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__forwarding", 3117af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__flags", 3118af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__size", 3119af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__copy_helper", 3120af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__destroy_helper", 3121af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump DeclName, 3122af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 3123af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3124af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump for (size_t i = 0; i < 7; ++i) { 3125af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (!HasCopyAndDispose && i >=4 && i <= 5) 3126af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump continue; 3127af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3128af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump &Idents.get(FieldNames[i]), 3129a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3130af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump /*BitWidth=*/0, /*Mutable=*/false); 3131af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->addDecl(Field); 3132af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump } 3133af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3134838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3135af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3136af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return getPointerType(getTagDeclType(T)); 3137ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump} 3138ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3139ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3140ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike StumpQualType ASTContext::getBlockParmType( 3141083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump bool BlockHasCopyDispose, 3142ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump llvm::SmallVector<const Expr *, 8> &BlockDeclRefDecls) { 3143adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Move up 31444d0d85c3370f2726c74ba0ece0a5e712830a1d82Fariborz Jahanian static unsigned int UniqueBlockParmTypeID = 0; 3145f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 3146f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__block_literal_" 3147f5942a44880be26878592eb052b737579349411eBenjamin Kramer << ++UniqueBlockParmTypeID; 3148adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 314979cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 315079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get(Name.str())); 31515cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 3152adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 3153adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 3154adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 3155adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 3156adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 3157083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump (BlockHasCopyDispose ? 3158083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorExtendedType()) : 3159083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorType())) 3160adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3161adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3162adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 3163adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__isa", 3164adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__flags", 3165adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__reserved", 3166adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__FuncPtr", 3167adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__descriptor" 3168adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3169adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3170adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 5; ++i) { 3171ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3172adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 3173a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3174ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 3175ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump T->addDecl(Field); 3176ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3177ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3178ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump for (size_t i = 0; i < BlockDeclRefDecls.size(); ++i) { 3179ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const Expr *E = BlockDeclRefDecls[i]; 3180ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(E); 3181ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump clang::IdentifierInfo *Name = 0; 3182ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE) { 3183ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const ValueDecl *D = BDRE->getDecl(); 3184ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump Name = &Idents.get(D->getName()); 3185ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3186ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump QualType FieldType = E->getType(); 3187ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3188ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE && BDRE->isByRef()) 3189af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType = BuildByRefType(BDRE->getDecl()->getNameAsCString(), 3190af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType); 3191ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3192ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3193a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Name, FieldType, /*TInfo=*/0, 3194ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 3195adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 3196adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 3197adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3198838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3199ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3200ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump return getPointerType(getTagDeclType(T)); 3201adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3202adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3203319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 32046217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 3205319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 3206319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 3207319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 3208319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3209e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 3210e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 32112d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 3212e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 3213bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 3214bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 32151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 321685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 321785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 321885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 3219a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 322033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 3221aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen DyckCharUnits ASTContext::getObjCEncodingTypeSize(QualType type) { 3222199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits sz = getTypeSizeInChars(type); 32231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 322433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 3225199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck if (sz.isPositive() && type->isIntegralType()) 3226199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck sz = std::max(sz, getTypeSizeInChars(IntTy)); 322733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 322833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 3229199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck sz = getTypeSizeInChars(VoidPtrTy); 3230aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck return sz; 3231199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck} 3232199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck 3233199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyckstatic inline 3234199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyckstd::string charUnitsToString(const CharUnits &CU) { 3235199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return llvm::itostr(CU.getQuantity()); 323633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 323733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 32385e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall/// getObjCEncodingForBlockDecl - Return the encoded type for this method 32395e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall/// declaration. 32405e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnallvoid ASTContext::getObjCEncodingForBlock(const BlockExpr *Expr, 32415e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall std::string& S) { 32425e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall const BlockDecl *Decl = Expr->getBlockDecl(); 32435e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType BlockTy = 32445e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall Expr->getType()->getAs<BlockPointerType>()->getPointeeType(); 32455e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Encode result type. 32465e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall getObjCEncodingForType(cast<FunctionType>(BlockTy)->getResultType(), S); 32475e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Compute size of all parameters. 32485e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Start with computing size of a pointer in number of bytes. 32495e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // FIXME: There might(should) be a better way of doing this computation! 32505e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall SourceLocation Loc; 3251199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); 3252199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits ParmOffset = PtrSize; 32535e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 32545e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall E = Decl->param_end(); PI != E; ++PI) { 32555e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType PType = (*PI)->getType(); 3256aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck CharUnits sz = getObjCEncodingTypeSize(PType); 3257199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck assert (sz.isPositive() && "BlockExpr - Incomplete param type"); 32585e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset += sz; 32595e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } 32605e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Size of the argument frame 3261199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 32625e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Block pointer and offset. 32635e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall S += "@?0"; 32645e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset = PtrSize; 32655e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall 32665e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Argument types. 32675e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset = PtrSize; 32685e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall for (BlockDecl::param_const_iterator PI = Decl->param_begin(), E = 32695e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall Decl->param_end(); PI != E; ++PI) { 32705e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmVarDecl *PVDecl = *PI; 32715e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType PType = PVDecl->getOriginalType(); 32725e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall if (const ArrayType *AT = 32735e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 32745e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Use array's original type only if it has known number of 32755e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // elements. 32765e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall if (!isa<ConstantArrayType>(AT)) 32775e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall PType = PVDecl->getType(); 32785e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } else if (PType->isFunctionType()) 32795e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall PType = PVDecl->getType(); 32805e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall getObjCEncodingForType(PType, S); 3281199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 3282aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck ParmOffset += getObjCEncodingTypeSize(PType); 32835e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } 32845e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall} 32855e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall 3286a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 328733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 32881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 3289e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3290c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3291ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 3292a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 329333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 32940d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 329533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 329633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 329733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 329833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 3299199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); 330033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 330133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 3302199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits ParmOffset = 2 * PtrSize; 330389951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 330489951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 330589951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 3306aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck CharUnits sz = getObjCEncodingTypeSize(PType); 3307199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck assert (sz.isPositive() && 3308199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck "getObjCEncodingForMethodDecl - Incomplete param type"); 330933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 331033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 3311199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 331233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 3313199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(PtrSize); 33141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 331533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 331633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 331789951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 331889951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 331989951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 33201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType PType = PVDecl->getOriginalType(); 33214306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 3322ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 3323ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 3324ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 3325bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 3326ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3327ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 3328ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3329ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 333033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 33314306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 33320d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 3333199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 3334aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck ParmOffset += getObjCEncodingTypeSize(PType); 333533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 333633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 333733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 3338c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 333983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 3340c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 3341c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 33421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Property attributes are stored as a comma-delimited C string. The simple 33431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// attributes readonly and bycopy are encoded as single characters. The 33441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parametrized attributes, getter=name, setter=name, and ivar=name, are 33451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// encoded as single characters, followed by an identifier. Property types 33461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// are also encoded as a parametrized attribute. The characters used to encode 334783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 334883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 334983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 335083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 335183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 335283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 335383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 335483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 335583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 335683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 335783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 335883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 335983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 336083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 336183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 336283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 33631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 3364c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 3365e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3366c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 3367c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 3368c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 3369c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3370c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 3371c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 33721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCCategoryImplDecl *CID = 3373c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 3374c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 337517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 3376653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3377c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3378c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3379c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3380c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3381c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3382c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3383c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3384c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3385c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3386c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 338761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 3388c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 338917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 3390653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3391c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3392c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3393c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3394c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3395c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3396c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3397c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3398c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 33991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3400c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3401c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3402c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3403c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3404c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 3405c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3406c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 3407090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 3408090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 34091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 3410090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 3411090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 3412c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3413c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 3414c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 3415c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3416c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 3417c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 3418c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 34191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case ObjCPropertyDecl::Retain: S += ",&"; break; 3420c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3421c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3422c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3423c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 3424c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 3425c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 3426c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 3427c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3428090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 3429090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 34301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3431c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 3432c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 3433077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 3434c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3435c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3436c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 3437c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 3438077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 3439c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3440c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3441c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 3442c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 3443c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 344439f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 3445c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3446c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3447c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 3448c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 3449c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3450a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 34511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Another legacy compatibility encoding: 32-bit longs are encoded as 34521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 'l' or 'L' , but not always. For typedefs, we need to use 3453a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 3454a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 3455a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 34568e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(PointeeTy.getTypePtr())) { 3457183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = PointeeTy->getAs<BuiltinType>()) { 3458c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 3459c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3460a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 34611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else 3462c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 3463c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3464a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 3465a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3466a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3467a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 3468a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 34697d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 3470153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 347182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 347282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 347382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 347482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 34751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(T, S, true, true, Field, 34765b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 347782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 347882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 34791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void EncodeBitField(const ASTContext *Context, std::string& S, 3480153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 34818b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 34828b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 34838b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 34849a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 34858b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 34868b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 34878b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 34888b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 348901eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar// FIXME: Use SmallString for accumulating string. 349082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 349182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 349282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 3493153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 3494090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 34956ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 3496183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = T->getAs<BuiltinType>()) { 3497ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD && FD->isBitField()) 3498ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return EncodeBitField(this, S, FD); 3499ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner char encoding; 3500ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner switch (BT->getKind()) { 35011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: assert(0 && "Unhandled builtin type kind"); 3502ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 3503ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 3504ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_U: 3505ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 3506ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 3507ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 35081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::ULong: 35091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 35101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 351172696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 3512ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 3513ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 3514ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_S: 3515ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 3516ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Short: encoding = 's'; break; 3517ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 35181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::Long: 35191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 35201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 3521ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner break; 3522ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 3523ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 3524ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 3525ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 3526ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 352743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 35281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3529ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += encoding; 3530ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3531ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3533183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) { 3534c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 35351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 3536c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 3537ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3538ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 353960bce3ef20a4c9684e3825cdd739fefb9810327dFariborz Jahanian 35406217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const PointerType *PT = T->getAs<PointerType>()) { 35418d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian if (PT->isObjCSelType()) { 35428d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian S += ':'; 35438d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian return; 35448d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian } 354585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 35468d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian 3547a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 3548a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 3549a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 3550a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 35511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Also, do not emit the 'r' for anything but the outermost type! 35528e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(T.getTypePtr())) { 3553a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 3554a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3555a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3556a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 35579fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (OutermostType) { 3558a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 35596217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek while (P->getAs<PointerType>()) 35606217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek P = P->getAs<PointerType>()->getPointeeType(); 3561a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 3562a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3563a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3564a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3565a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3566a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 3567a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 3568a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 3569a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 3570a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 3571a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 3572a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 3573a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 3574a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 3575a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3576a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 35771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 357885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 357985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 358085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 3581e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 358285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 358385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 358485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 35856217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek } else if (const RecordType *RTy = PointeeTy->getAs<RecordType>()) { 35869533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_class *" to "#". 35879533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { 35889533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '#'; 35899533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 35909533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 35919533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_object *" to "@". 35929533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { 35939533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '@'; 35949533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 35959533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 35969533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // fall through... 359785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 359885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 3599a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 3600a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 36011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 360243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 3603ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3604ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3606ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ArrayType *AT = 3607ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Ignore type qualifiers etc. 3608ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 3609559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 3610559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 3611559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 3612559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 36131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3614559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3615559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 3616559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 36171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3618559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 3619559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 3620559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 3621559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 3622559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 3623559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 3624559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 36251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3627559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3628559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 3629559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 3630ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3631ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3633183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (T->getAs<FunctionType>()) { 3634c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 3635ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3636ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36386217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *RTy = T->getAs<RecordType>()) { 363982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 3640d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 3641502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 3642502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 3643502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 3644502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 3645502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 3646502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 36470d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 36487d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 364917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 365017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 365144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 365243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 3653d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 365444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 3655d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 3656d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 36571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3658d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 365943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 36601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 366143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 3662d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 3663a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 3664a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 36651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(qt, S, false, true, 366643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 3667d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 36687d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 36696de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 3670d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 3671ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3672ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3674ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isEnumeralType()) { 36758b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 36768b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 36778b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 36788b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 3679ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3680ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3682ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isBlockPointerType()) { 368321a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 3684ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3685ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36870953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (const ObjCInterfaceType *OIT = T->getAs<ObjCInterfaceType>()) { 368843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 36890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ObjCInterfaceDecl *OI = OIT->getDecl(); 369043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 369143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 369243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 369343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 3694f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 369543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 3696f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 369743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 36981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 369943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 370043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 37011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 370243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 370343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 370443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 3705ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 370643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 37071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3708183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = T->getAs<ObjCObjectPointerType>()) { 370914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (OPT->isObjCIdType()) { 371014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '@'; 371114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3712ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 371427d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->isObjCClassType() || OPT->isObjCQualifiedClassType()) { 371527d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // FIXME: Consider if we need to output qualifiers for 'Class<p>'. 371627d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // Since this is a binary compatibility issue, need to consult with runtime 371727d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // folks. Fortunately, this is a *very* obsure construct. 371814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '#'; 371914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3720ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3722ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCQualifiedIdType()) { 37231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(getObjCIdType(), S, 372414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandPointedToStructures, 372514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandStructures, FD); 372614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (FD || EncodingProperty) { 372714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Note that we do extended encoding of protocol qualifer list 372814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Only when doing ivar or property encoding. 372914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 373067ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 373167ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 373214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '<'; 373314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += (*I)->getNameAsString(); 373414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '>'; 373514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 373614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 373714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 373814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3739ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3741ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner QualType PointeeTy = OPT->getPointeeType(); 3742ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (!EncodingProperty && 3743ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner isa<TypedefType>(PointeeTy.getTypePtr())) { 3744ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Another historical/compatibility reason. 37451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We encode the underlying type which comes out as 3746ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // {...}; 3747ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '^'; 37481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, 37491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump false, ExpandPointedToStructures, 3750ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner NULL); 375114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 375214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 3753ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3754ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '@'; 375527d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->getInterfaceDecl() && (FD || EncodingProperty)) { 3756ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 375727d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff S += OPT->getInterfaceDecl()->getIdentifier()->getName(); 375867ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 375967ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 3760ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '<'; 3761ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += (*I)->getNameAsString(); 3762ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '>'; 37631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3764ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 3765ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3766ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3767ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3769ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner assert(0 && "@encode for type not implemented!"); 377085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 377185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 37721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 3773ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 3774ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 3775ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 3776ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 3777ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 3778ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 3779ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 3780ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 3781ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 3782ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 3783ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 3784ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 3785ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 3786ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 3787ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 3788ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setBuiltinVaListType(QualType T) { 3789b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 37901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3791b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 3792b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 3793b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3794ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCIdType(QualType T) { 3795de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = T; 37967e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 37977e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 3798ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCSelType(QualType T) { 379913dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian ObjCSelTypedefType = T; 3800b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 3801b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3802ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCProtoType(QualType QT) { 3803a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 3804390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 3805390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 3806ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCClassType(QualType T) { 3807de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = T; 38088baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 38098baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3810a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 38111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(ObjCConstantStringType.isNull() && 38122198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 38131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3814a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 38152198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 38162198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 38170bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall/// \brief Retrieve the template name that corresponds to a non-empty 38180bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall/// lookup. 3819eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCallTemplateName ASTContext::getOverloadedTemplateName(UnresolvedSetIterator Begin, 3820eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCall UnresolvedSetIterator End) { 38210bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall unsigned size = End - Begin; 38220bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(size > 1 && "set is not overloaded!"); 38237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38240bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall void *memory = Allocate(sizeof(OverloadedTemplateStorage) + 38250bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall size * sizeof(FunctionTemplateDecl*)); 38260bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall OverloadedTemplateStorage *OT = new(memory) OverloadedTemplateStorage(size); 38270bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall 38280bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl **Storage = OT->getStorage(); 3829eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCall for (UnresolvedSetIterator I = Begin; I != End; ++I) { 38300bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl *D = *I; 38310bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(isa<FunctionTemplateDecl>(D) || 38320bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall (isa<UsingShadowDecl>(D) && 38330bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))); 38340bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall *Storage++ = D; 38357532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 38367532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38370bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall return TemplateName(OT); 38387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 38397532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3840d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// \brief Retrieve the template name that represents a qualified 3841d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// template name such as \c std::vector. 38421eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 3843d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor bool TemplateKeyword, 38440bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall TemplateDecl *Template) { 3845789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor // FIXME: Canonicalization? 3846d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor llvm::FoldingSetNodeID ID; 3847d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 38481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3849d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor void *InsertPos = 0; 3850d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName *QTN = 38510bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3852d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor if (!QTN) { 3853d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 3854d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 3855d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor } 38561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3857d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor return TemplateName(QTN); 3858d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor} 3859d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 38607532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 38617532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 38621eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 38637532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 38641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((!NNS || NNS->isDependent()) && 38653b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor "Nested name specifier must be dependent"); 38667532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 38687532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 38697532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38707532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 38717532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 38727532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 38737532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38747532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 38757532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 38767532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38777532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 38787532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 38797532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 38807532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 38817532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 38827532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 3883789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *CheckQTN = 3884789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3885789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckQTN && "Dependent type name canonicalization broken"); 3886789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckQTN; 38877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 38887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38897532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 38907532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 38917532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 38927532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3893ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Retrieve the template name that represents a dependent 3894ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// template name such as \c MetaFun::template operator+. 3895ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorTemplateName 3896ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 3897ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor OverloadedOperatorKind Operator) { 3898ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor assert((!NNS || NNS->isDependent()) && 3899ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor "Nested name specifier must be dependent"); 3900ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3901ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor llvm::FoldingSetNodeID ID; 3902ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateName::Profile(ID, NNS, Operator); 3903ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3904ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor void *InsertPos = 0; 3905789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *QTN 3906789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3907ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3908ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (QTN) 3909ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 3910ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3911ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 3912ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (CanonNNS == NNS) { 3913ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator); 3914ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 3915ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Operator); 3916ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator, Canon); 3917789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 3918789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *CheckQTN 3919789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3920789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckQTN && "Dependent template name canonicalization broken"); 3921789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckQTN; 3922ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 3923ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3924ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 3925ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 3926ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor} 3927ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3928b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 3929d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 3930d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 3931e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallCanQualType ASTContext::getFromTargetType(unsigned Type) const { 3932b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 3933e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall case TargetInfo::NoInt: return CanQualType(); 3934b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 3935b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 3936b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 3937b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 3938b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 3939b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 3940b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 3941b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 3942b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 3943b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 3944b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 3945e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall return CanQualType(); 3946b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 3947b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3948b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3949b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 3950b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3951b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3952fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 3953fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 3954fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 3955f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff/// FIXME: Move to Type. 3956fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 3957fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 3958fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 3959fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 396040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 3961fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 3962fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 39631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return false; 3964fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 3965fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 39664fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 39674fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 39684fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 39690953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualifiers::GC ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 39700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttrs = Qualifiers::GCNone; 39714fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 39724fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 3973b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 39744fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 39751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // (or pointers to them) be treated as though they were declared 3976a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 39770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GCAttrs == Qualifiers::GCNone) { 397875212ee91313bc1b6dd826d9b173541bc4016539Fariborz Jahanian if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) 39790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttrs = Qualifiers::Strong; 3980a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 39816217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek return getObjCGCAttrKind(Ty->getAs<PointerType>()->getPointeeType()); 3982a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 3983c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 3984c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 3985f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 39860953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qualifiers::GCNone; 39874fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 3988b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 39894fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 39904fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 39916ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 39926ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 39936ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 3994770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 39951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// areCompatVectorTypes - Return true if the two specified vector types are 39966ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 39976ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 39986ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 3999467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified()); 40006ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 400161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 40026ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 40036ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 40044084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 40054084c306635b70f37029dca938444e6013f08684Steve Naroff// ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. 40064084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 40074084c306635b70f37029dca938444e6013f08684Steve Naroff 40084084c306635b70f37029dca938444e6013f08684Steve Naroff/// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the 40094084c306635b70f37029dca938444e6013f08684Steve Naroff/// inheritance hierarchy of 'rProto'. 40100fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanianbool ASTContext::ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, 40110fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian ObjCProtocolDecl *rProto) { 40124084c306635b70f37029dca938444e6013f08684Steve Naroff if (lProto == rProto) 401314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return true; 40144084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCProtocolDecl::protocol_iterator PI = rProto->protocol_begin(), 40154084c306635b70f37029dca938444e6013f08684Steve Naroff E = rProto->protocol_end(); PI != E; ++PI) 40164084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 40174084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40184084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40194084c306635b70f37029dca938444e6013f08684Steve Naroff} 402014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 40214084c306635b70f37029dca938444e6013f08684Steve Naroff/// QualifiedIdConformsQualifiedId - compare id<p,...> with id<p1,...> 40224084c306635b70f37029dca938444e6013f08684Steve Naroff/// return true if lhs's protocols conform to rhs's protocol; false 40234084c306635b70f37029dca938444e6013f08684Steve Naroff/// otherwise. 40244084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::QualifiedIdConformsQualifiedId(QualType lhs, QualType rhs) { 40254084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isObjCQualifiedIdType() && rhs->isObjCQualifiedIdType()) 40264084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(lhs, rhs, false); 40274084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40284084c306635b70f37029dca938444e6013f08684Steve Naroff} 40294084c306635b70f37029dca938444e6013f08684Steve Naroff 40304084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an 40314084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIDType. 40324084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::ObjCQualifiedIdTypesAreCompatible(QualType lhs, QualType rhs, 40334084c306635b70f37029dca938444e6013f08684Steve Naroff bool compare) { 40344084c306635b70f37029dca938444e6013f08684Steve Naroff // Allow id<P..> and an 'id' or void* type in all cases. 40351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isVoidPointerType() || 40364084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->isObjCIdType() || lhs->isObjCClassType()) 40374084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else if (rhs->isVoidPointerType() || 40394084c306635b70f37029dca938444e6013f08684Steve Naroff rhs->isObjCIdType() || rhs->isObjCClassType()) 40404084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40414084c306635b70f37029dca938444e6013f08684Steve Naroff 40424084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsQID = lhs->getAsObjCQualifiedIdType()) { 4043183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *rhsOPT = rhs->getAs<ObjCObjectPointerType>(); 40441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40454084c306635b70f37029dca938444e6013f08684Steve Naroff if (!rhsOPT) return false; 40461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40474084c306635b70f37029dca938444e6013f08684Steve Naroff if (rhsOPT->qual_empty()) { 40481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a unqualified interface pointer "NSString*", 40494084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 40504084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 40514084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 40524084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 40534084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 40544084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 40554084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 40560fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (!rhsID->ClassImplementsProtocol(*I, true)) 40574084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40584084c306635b70f37029dca938444e6013f08684Steve Naroff } 40594084c306635b70f37029dca938444e6013f08684Steve Naroff } 40604084c306635b70f37029dca938444e6013f08684Steve Naroff // If there are no qualifiers and no interface, we have an 'id'. 40614084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40624084c306635b70f37029dca938444e6013f08684Steve Naroff } 40631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 40644084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 40654084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 40664084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 40674084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 4068de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 4069de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // when comparing an id<P> on lhs with a static type on rhs, 4070de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // see if static class implements all of id's protocols, directly or 4071de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // through its super class and categories. 40724084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsOPT->qual_begin(), 40734084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsOPT->qual_end(); J != E; ++J) { 40744084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 40754084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 40764084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 40774084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 40788f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 40798f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 4080de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 40811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a qualified interface pointer "NSString<P>*", 40824084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 40834084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 40844084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 40854084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 40864084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 40874084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 40884084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 40890fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (rhsID->ClassImplementsProtocol(*I, true)) { 40904084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 40914084c306635b70f37029dca938444e6013f08684Steve Naroff break; 40924084c306635b70f37029dca938444e6013f08684Steve Naroff } 40934084c306635b70f37029dca938444e6013f08684Steve Naroff } 40944084c306635b70f37029dca938444e6013f08684Steve Naroff } 40954084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 4096de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return false; 4097de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 40981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4099de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return true; 4100de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 41011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41024084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsQID = rhs->getAsObjCQualifiedIdType(); 41034084c306635b70f37029dca938444e6013f08684Steve Naroff assert(rhsQID && "One of the LHS/RHS should be id<x>"); 41044084c306635b70f37029dca938444e6013f08684Steve Naroff 41051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCObjectPointerType *lhsOPT = 41064084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->getAsObjCInterfacePointerType()) { 41074084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhsOPT->qual_empty()) { 41084084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 41094084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *lhsID = lhsOPT->getInterfaceDecl()) { 41104084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = rhsQID->qual_begin(), 41114084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); I != E; ++I) { 41124084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 41134084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 41144084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 41150fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (lhsID->ClassImplementsProtocol(*I, true)) { 41164084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 41174084c306635b70f37029dca938444e6013f08684Steve Naroff break; 41184084c306635b70f37029dca938444e6013f08684Steve Naroff } 41194084c306635b70f37029dca938444e6013f08684Steve Naroff } 41204084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 41214084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 41224084c306635b70f37029dca938444e6013f08684Steve Naroff } 41234084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 41244084c306635b70f37029dca938444e6013f08684Steve Naroff } 41251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 41264084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsOPT->qual_begin(), 41274084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsOPT->qual_end(); I != E; ++I) { 41284084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 41294084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 41304084c306635b70f37029dca938444e6013f08684Steve Naroff 41314084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 41324084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 41334084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 41344084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsQID->qual_begin(), 41354084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); J != E; ++J) { 41364084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 41374084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 41384084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 41394084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 41404084c306635b70f37029dca938444e6013f08684Steve Naroff break; 41414084c306635b70f37029dca938444e6013f08684Steve Naroff } 41424084c306635b70f37029dca938444e6013f08684Steve Naroff } 41434084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 41444084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 41454084c306635b70f37029dca938444e6013f08684Steve Naroff } 41464084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 41474084c306635b70f37029dca938444e6013f08684Steve Naroff } 41484084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 41494084c306635b70f37029dca938444e6013f08684Steve Naroff} 41504084c306635b70f37029dca938444e6013f08684Steve Naroff 41514084c306635b70f37029dca938444e6013f08684Steve Naroff/// canAssignObjCInterfaces - Return true if the two interface types are 41524084c306635b70f37029dca938444e6013f08684Steve Naroff/// compatible for assignment from RHS to LHS. This handles validation of any 41534084c306635b70f37029dca938444e6013f08684Steve Naroff/// protocol qualifiers on the LHS or RHS. 41544084c306635b70f37029dca938444e6013f08684Steve Naroff/// 41554084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 41564084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *RHSOPT) { 41574084c306635b70f37029dca938444e6013f08684Steve Naroff // If either type represents the built-in 'id' or 'Class' types, return true. 41584084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCBuiltinType() || RHSOPT->isObjCBuiltinType()) 41594084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 41604084c306635b70f37029dca938444e6013f08684Steve Naroff 41614084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 41621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 41631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType(RHSOPT,0), 41644084c306635b70f37029dca938444e6013f08684Steve Naroff false); 41654084c306635b70f37029dca938444e6013f08684Steve Naroff 41664084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 41674084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 41684084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHS && RHS) // We have 2 user-defined types. 41694084c306635b70f37029dca938444e6013f08684Steve Naroff return canAssignObjCInterfaces(LHS, RHS); 41701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41714084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 417214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 417314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4174e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// getIntersectionOfProtocols - This routine finds the intersection of set 4175e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// of protocols inherited from two distinct objective-c pointer objects. 4176e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// It is used to build composite qualifier list of the composite type of 4177e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// the conditional expression involving two objective-c pointer objects. 4178e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianstatic 4179e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid getIntersectionOfProtocols(ASTContext &Context, 4180e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4181e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *RHSOPT, 4182e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVectorImpl<ObjCProtocolDecl *> &IntersectionOfProtocols) { 4183e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4184e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4185e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4186e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4187e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> InheritedProtocolSet; 4188e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned LHSNumProtocols = LHS->getNumProtocols(); 4189e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (LHSNumProtocols > 0) 4190e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHS->qual_begin(), LHS->qual_end()); 4191e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 4192432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> LHSInheritedProtocols; 4193432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Context.CollectInheritedProtocols(LHS->getDecl(), LHSInheritedProtocols); 4194e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHSInheritedProtocols.begin(), 4195e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSInheritedProtocols.end()); 4196e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4197e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4198e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned RHSNumProtocols = RHS->getNumProtocols(); 4199e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (RHSNumProtocols > 0) { 4200e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl **RHSProtocols = (ObjCProtocolDecl **)RHS->qual_begin(); 4201e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (unsigned i = 0; i < RHSNumProtocols; ++i) 4202e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (InheritedProtocolSet.count(RHSProtocols[i])) 4203e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.push_back(RHSProtocols[i]); 4204e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4205e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 4206432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> RHSInheritedProtocols; 4207e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Context.CollectInheritedProtocols(RHS->getDecl(), RHSInheritedProtocols); 4208432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian for (llvm::SmallPtrSet<ObjCProtocolDecl*,8>::iterator I = 4209432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian RHSInheritedProtocols.begin(), 4210432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian E = RHSInheritedProtocols.end(); I != E; ++I) 4211432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian if (InheritedProtocolSet.count((*I))) 4212432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian IntersectionOfProtocols.push_back((*I)); 4213e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4214e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 4215e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4216db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// areCommonBaseCompatible - Returns common base class of the two classes if 4217db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// one found. Note that this is O'2 algorithm. But it will be called as the 4218db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// last type comparison in a ?-exp of ObjC pointer types before a 4219db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// warning is issued. So, its invokation is extremely rare. 4220db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz JahanianQualType ASTContext::areCommonBaseCompatible( 4221db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4222db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCObjectPointerType *RHSOPT) { 4223db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4224db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4225db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian if (!LHS || !RHS) 4226db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4227db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4228db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian while (const ObjCInterfaceDecl *LHSIDecl = LHS->getDecl()->getSuperClass()) { 4229db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian QualType LHSTy = getObjCInterfaceType(LHSIDecl); 4230db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian LHS = LHSTy->getAs<ObjCInterfaceType>(); 4231e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (canAssignObjCInterfaces(LHS, RHS)) { 4232e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVector<ObjCProtocolDecl *, 8> IntersectionOfProtocols; 4233e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian getIntersectionOfProtocols(*this, 4234e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSOPT, RHSOPT, IntersectionOfProtocols); 4235e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (IntersectionOfProtocols.empty()) 4236e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSTy = getObjCObjectPointerType(LHSTy); 4237e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else 4238e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSTy = getObjCObjectPointerType(LHSTy, &IntersectionOfProtocols[0], 4239e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.size()); 4240e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return LHSTy; 4241e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4242db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian } 4243db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4244db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4245db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian} 4246db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 42473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 42483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 42496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 42506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 42516ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 42526ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 42531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42546ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 42556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 4256c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (LHS->getNumProtocols() == 0) 42576ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 42581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 42606ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 4261c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (RHS->getNumProtocols() == 0) 42626ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 42631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4264c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator LHSPI = LHS->qual_begin(), 4265c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff LHSPE = LHS->qual_end(); 426691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 426791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 426891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 426991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 427091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 4271c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator RHSPI = RHS->qual_begin(), 42724084c306635b70f37029dca938444e6013f08684Steve Naroff RHSPE = RHS->qual_end(); 42738f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff RHSPI != RHSPE; RHSPI++) { 42748f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 427591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 42768f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 42778f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 427891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 427991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 428091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 428191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 428291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 428391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 428491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 42856ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 42866ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 4287389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 4288389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 4289183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *LHSOPT = LHS->getAs<ObjCObjectPointerType>(); 4290183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *RHSOPT = RHS->getAs<ObjCObjectPointerType>(); 42911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 429214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (!LHSOPT || !RHSOPT) 4293389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 429414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 429514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 429614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff canAssignObjCInterfaces(RHSOPT, LHSOPT); 4297389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 4298389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 42991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 4300ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 43011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C99 6.2.7p1: Two types have compatible types if their types are the 4302ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 43033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 43040e709abafbd939326850501f795cc7a92c88a354Douglas Gregor if (getLangOptions().CPlusPlus) 43050e709abafbd939326850501f795cc7a92c88a354Douglas Gregor return hasSameType(LHS, RHS); 43060e709abafbd939326850501f795cc7a92c88a354Douglas Gregor 43073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 43083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 43093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43103d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 4311183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *lbase = lhs->getAs<FunctionType>(); 4312183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *rbase = rhs->getAs<FunctionType>(); 431372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 431472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 43153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 43163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 43173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 43196de8b62ae42818c0bd8878b0d1900e17c7c43e0eFariborz Jahanian QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 43203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 43216de8b62ae42818c0bd8878b0d1900e17c7c43e0eFariborz Jahanian if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 432261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 43236de8b62ae42818c0bd8878b0d1900e17c7c43e0eFariborz Jahanian if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 432461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 43256dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump // FIXME: double check this 43262455636163fdd18581d7fdae816433f886d88213Mike Stump bool NoReturn = lbase->getNoReturnAttr() || rbase->getNoReturnAttr(); 43272455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != lbase->getNoReturnAttr()) 43282455636163fdd18581d7fdae816433f886d88213Mike Stump allLTypes = false; 43292455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != rbase->getNoReturnAttr()) 43302455636163fdd18581d7fdae816433f886d88213Mike Stump allRTypes = false; 4331ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv lcc = lbase->getCallConv(); 4332ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv rcc = rbase->getCallConv(); 4333ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor // Compatible functions must have compatible calling conventions 433404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!isSameCallConv(lcc, rcc)) 4335ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return QualType(); 43361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 4338465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 4339465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 43403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 43413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 43423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 43443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 43453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 43463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 43483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 43493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 43503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43517fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 43527fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 43537fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 43543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 43553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 43563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 43573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 43583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 43593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 43603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 43613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 436261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 436361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 436461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 436561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 43663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 43673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 43683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 43693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 43702455636163fdd18581d7fdae816433f886d88213Mike Stump lproto->isVariadic(), lproto->getTypeQuals(), 43711bf40248e3f0d743df77b5b44dbff72c235cbf20Douglas Gregor false, false, 0, 0, NoReturn, lcc); 43723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 43733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 43753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 43763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 437772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 43783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 4379465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 43803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 43813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 43823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 43833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 43843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 43853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 43863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 43873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 43883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 4389b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor 4390b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor // Look at the promotion type of enum types, since that is the type used 4391b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor // to pass enum values. 4392b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor if (const EnumType *Enum = argTy->getAs<EnumType>()) 4393b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor argTy = Enum->getDecl()->getPromotionType(); 4394b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor 43953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 43963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 43973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 43983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 43993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 44013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 44023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 44032d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getNumArgs(), proto->isVariadic(), 4404ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor proto->getTypeQuals(), NoReturn, lcc); 44053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 44063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 44083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 4409ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return getFunctionNoProtoType(retType, NoReturn, lcc); 44103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 44113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44123d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 441343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 441443d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 441543d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 44167c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 44177c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 44180e709abafbd939326850501f795cc7a92c88a354Douglas Gregor assert(!LHS->getAs<ReferenceType>() && "LHS is a reference type?"); 44190e709abafbd939326850501f795cc7a92c88a354Douglas Gregor assert(!RHS->getAs<ReferenceType>() && "RHS is a reference type?"); 44200e709abafbd939326850501f795cc7a92c88a354Douglas Gregor 44213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 44223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 44233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4424f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 44253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 44263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 44273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the qualifiers are different, the types aren't compatible... mostly. 4429a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor Qualifiers LQuals = LHSCan.getLocalQualifiers(); 4430a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor Qualifiers RQuals = RHSCan.getLocalQualifiers(); 44310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals != RQuals) { 44320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If any of these qualifiers are different, we have a type 44330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // mismatch. 44340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || 44350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall LQuals.getAddressSpace() != RQuals.getAddressSpace()) 44360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 44370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 44380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Exactly one GC qualifier difference is allowed: __strong is 44390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // okay if the other type has no GC qualifier but is an Objective 44400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // C object pointer (i.e. implicitly strong by default). We fix 44410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // this by pretending that the unqualified type was actually 44420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // qualified __strong. 44430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); 44440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); 44450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements"); 44460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 44470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) 44480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 44490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 44500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Strong && RHSCan->isObjCObjectPointerType()) { 44510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(LHS, getObjCGCQualType(RHS, Qualifiers::Strong)); 44520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 44530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_R == Qualifiers::Strong && LHSCan->isObjCObjectPointerType()) { 44540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(getObjCGCQualType(LHS, Qualifiers::Strong), RHS); 44550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 44563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 44570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 44580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 44590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Okay, qualifiers are equal. 44603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4461852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 4462852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 4463f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 44641adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 44651adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 44661adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 44671adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 44684c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 44694c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 4470a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 4471a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 4472a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 4473a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 44741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4475213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 4476213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 4477213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 44781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44794e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 44804e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 44811adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 44821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // a signed integer type, or an unsigned integer type. 4483842aef8d942a880eeb9535d40de31a86838264cbJohn McCall // Compatibility is based on the underlying type, not the promotion 4484842aef8d942a880eeb9535d40de31a86838264cbJohn McCall // type. 4485183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = LHS->getAs<EnumType>()) { 44863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 44873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 4488bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 4489183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = RHS->getAs<EnumType>()) { 44903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 44913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 4492bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 44931adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 44943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 4495ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 44963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44974a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 44981adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 449972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 450072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 450172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 450272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 450372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 450472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 450572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 450672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 45077c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 45087c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 450972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 451072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 451172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 451272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 451372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 451472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 451572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 451672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 451772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 451872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 451972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 45201adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 45213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 45223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 45236217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<PointerType>()->getPointeeType(); 45246217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<PointerType>()->getPointeeType(); 45253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 45263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 452707d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 452861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 452907d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 453061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 45313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 45323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 4533c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 4534c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 4535c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 45366217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<BlockPointerType>()->getPointeeType(); 45376217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<BlockPointerType>()->getPointeeType(); 4538c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 4539c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 4540c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 4541c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 4542c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 4543c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 4544c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 4545c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 45461adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 45473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 45483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 45493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 45503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 45513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 45523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 45543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 45553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 45563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 455761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 455861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 455961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 456061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 45613bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 45623bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 45633bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 45643bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 45653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 45663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 456761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 456861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 456961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 457061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 45713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 45723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 45733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 45743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 45753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 45763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 45773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 45783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 45793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 45803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 45813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 45823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 45833bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 45843bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 45857e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 45867e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 45873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 45881adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 45893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 459072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 459172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 45923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 45931adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 45943cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 45953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 459664cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 459764cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 459864cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 45993cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 46005a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 4601183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (areCompatVectorTypes(LHS->getAs<VectorType>(), RHS->getAs<VectorType>())) 46023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 460361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 460461490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 46055fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 46065a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 46075a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 4608183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* LHSIface = LHS->getAs<ObjCInterfaceType>(); 4609183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* RHSIface = RHS->getAs<ObjCInterfaceType>(); 46105fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 46115fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 46125fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 46135fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 46143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 461561490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 461614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff case Type::ObjCObjectPointer: { 4617183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (canAssignObjCInterfaces(LHS->getAs<ObjCObjectPointerType>(), 4618183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall RHS->getAs<ObjCObjectPointerType>())) 461914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return LHS; 462014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4621bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 462214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 46237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 46247532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 46257532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 4626ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 462772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 462872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 4629ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 46307192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 46315426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 4632ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 4633ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 463488054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 4635ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 4636632d772a78db7e2cd9b36f8a22aee49d44486fbfSebastian Redl if (T->isBooleanType()) 4637ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 4638842aef8d942a880eeb9535d40de31a86838264cbJohn McCall if (EnumType *ET = dyn_cast<EnumType>(T)) 463929a7f3342c3c6dd15d914c61ae22246c36d51ce7Eli Friedman T = ET->getDecl()->getIntegerType(); 4640f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 4641ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 4642ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4643ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 4644ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 4645ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 46466a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 46476a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // Turn <4 x signed int> -> <4 x unsigned int> 46486a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const VectorType *VTy = T->getAs<VectorType>()) 46496a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner return getVectorType(getCorrespondingUnsignedType(VTy->getElementType()), 465082287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VTy->getNumElements(), VTy->isAltiVec(), VTy->isPixel()); 46516a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 46526a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // For enums, we return the unsigned version of the base type. 46536a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const EnumType *ETy = T->getAs<EnumType>()) 4654ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 46556a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 46566a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner const BuiltinType *BTy = T->getAs<BuiltinType>(); 46576a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner assert(BTy && "Unexpected signed integer type"); 4658ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 4659ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 4660ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 4661ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 4662ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 4663ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 4664ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 4665ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 4666ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 4667ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 4668ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 4669ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 46702df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 46712df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 4672ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 4673ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 4674ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 4675ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 4676ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4677ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 46782cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 46792cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 46802cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 468186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 468286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 468386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 468486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 468586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 468686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 468786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 468886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 46891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 469086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 469186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 469286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 469386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 469486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 46951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 469686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 469786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 469886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 469986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 47001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: Done = true; --Str; break; 470186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 470286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 470386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 470486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 470586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 470686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 470786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 470886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 470986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 471086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 471186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 471286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 471386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 471486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 471586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 471686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 471786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 471886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 47191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 472086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 472186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 472286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 472386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 472486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 472586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 472686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 472786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 472886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 472986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 473086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 473186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 473286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 473386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 473486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 473586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 473686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 473786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 473886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 473986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 474086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 474186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 474286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 474386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 474486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 474586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 474686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 474786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 474886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 474986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 475086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 475186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 475286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 475386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 475486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 475586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 475686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 475786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 475886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 475986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 476086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 476186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 476286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 476386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 476486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 476586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 476686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 476786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 476886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 476986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 477086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 477186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 477286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 477386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 477486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 477586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 477686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 477786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 477886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 477986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 478086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 478186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 478286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 478386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 478486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 478586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 478686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 478786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 478886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 478986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 479086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 479186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 479286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 479386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 479486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 479586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 479686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 479786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 479886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 479986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 480086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 480186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 480286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 48031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 480486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 48051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 480686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 480782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson // FIXME: Don't know what to do about AltiVec. 480882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Type = Context.getVectorType(ElementType, NumElements, false, false); 480986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 481086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4811d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor case 'X': { 4812d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 4813d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor Type = Context.getComplexType(ElementType); 4814d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor break; 4815d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor } 48169a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'P': 4817c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor Type = Context.getFILEType(); 4818c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor if (Type.isNull()) { 4819f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_stdio; 482086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 482186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4822fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 48239a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'J': 4824f711c41dd9412a8182793259d355c4f6979ed5edMike Stump if (Signed) 4825782fa308a765aeac2acb39c4e697c937ec21185bMike Stump Type = Context.getsigjmp_bufType(); 4826f711c41dd9412a8182793259d355c4f6979ed5edMike Stump else 4827f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Type = Context.getjmp_bufType(); 4828f711c41dd9412a8182793259d355c4f6979ed5edMike Stump 4829fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump if (Type.isNull()) { 4830f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_setjmp; 4831fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump return QualType(); 4832fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump } 4833fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 4834782fa308a765aeac2acb39c4e697c937ec21185bMike Stump } 48351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 483686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 483786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 48381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 483986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 484086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 484186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 484286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 484386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 484486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getPointerType(Type); 484586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 484686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 484786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 484886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 484986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 485086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 48510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Type = Type.withConst(); 485286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 4853013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian case 'D': 4854013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian Type = Context.getVolatileType(Type); 4855013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian break; 485686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 485786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 48581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 485986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 486086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 486186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 486286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 486386df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 486486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 486586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 48661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 486786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 48681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 486986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 487086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 487186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 487286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 487386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 487486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 487586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 487686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 487786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 487886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 487986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 488086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 48811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 488286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 488386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 488486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 488586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 488686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 488786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 488886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 488986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 489086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 489186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 489286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner TypeStr[0] == '.', 0); 489386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 4894a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4895a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType 4896a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanASTContext::UsualArithmeticConversionsType(QualType lhs, QualType rhs) { 4897a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Perform the usual unary conversions. We do this early so that 4898a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // integral promotions to "int" can allow us to exit early, in the 4899a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // lhs == rhs check. Also, for conversion purposes, we ignore any 4900a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // qualifiers. For example, "const float" and "float" are 4901a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // equivalent. 4902a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isPromotableIntegerType()) 4903a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getPromotedIntegerType(lhs); 4904a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4905a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = lhs.getUnqualifiedType(); 4906a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isPromotableIntegerType()) 4907a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getPromotedIntegerType(rhs); 4908a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4909a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = rhs.getUnqualifiedType(); 4910a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4911a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If both types are identical, no conversion is needed. 4912a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs == rhs) 4913a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 49141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4915a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If either side is a non-arithmetic type (e.g. a pointer), we are done. 4916a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The caller can deal with this (e.g. pointer + int). 4917a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (!lhs->isArithmeticType() || !rhs->isArithmeticType()) 4918a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 49191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 49201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // At this point, we have two different arithmetic types. 49211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4922a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle complex types first (C99 6.3.1.8p1). 4923a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexType() || rhs->isComplexType()) { 4924a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the complex type. 49251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (rhs->isIntegerType() || rhs->isComplexIntegerType()) { 4926a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 4927a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4928a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 49291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isIntegerType() || lhs->isComplexIntegerType()) { 4930a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 4931a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4932a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4933a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // This handles complex/complex, complex/float, or float/complex. 49341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // When both operands are complex, the shorter operand is converted to the 49351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type of the longer, and that is the type of the result. This corresponds 49361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // to what is done when combining two real floating-point operands. 49371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The fun begins when size promotion occur across type domains. 4938a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // From H&S 6.3.4: When one operand is complex and the other is a real 49391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // floating-point type, the less precise type is converted, within it's 4940a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // real or complex domain, to the precision of the other type. For example, 49411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // when combining a "long double" with a "double _Complex", the 4942a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // "double _Complex" is promoted to "long double _Complex". 4943a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 49441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 49451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (result > 0) { // The left side is bigger, convert rhs. 4946a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getFloatingTypeOfSizeWithinDomain(lhs, rhs); 49471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (result < 0) { // The right side is bigger, convert lhs. 4948a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getFloatingTypeOfSizeWithinDomain(rhs, lhs); 49491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 4950a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // At this point, lhs and rhs have the same rank/size. Now, make sure the 4951a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // domains match. This is a requirement for our implementation, C99 4952a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // does not require this promotion. 4953a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs != rhs) { // Domains don't match, we have complex/float mix. 4954a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType()) { // handle "double, _Complex double". 4955a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4956a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { // handle "_Complex double, double". 4957a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4958a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4959a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4960a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // The domain/size match exactly. 4961a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4962a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Now handle "real" floating types (i.e. float, double, long double). 4963a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType() || rhs->isRealFloatingType()) { 4964a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the real floating type. 4965a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isIntegerType()) { 4966a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the lhs floating point type. 4967a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4968a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4969a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isComplexIntegerType()) { 4970a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the complex floating point type. 4971a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(lhs); 4972a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4973a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isIntegerType()) { 4974a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the rhs floating point type. 4975a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4976a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 49771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isComplexIntegerType()) { 4978a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the complex floating point type. 4979a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(rhs); 4980a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4981a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // We have two real floating types, float/complex combos were handled above. 4982a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Convert the smaller operand to the bigger result. 4983a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 4984a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (result > 0) // convert the rhs 4985a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4986a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(result < 0 && "illegal float comparison"); 4987a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; // convert the lhs 4988a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4989a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexIntegerType() || rhs->isComplexIntegerType()) { 4990a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle GCC complex int extension. 4991a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *lhsComplexInt = lhs->getAsComplexIntegerType(); 4992a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *rhsComplexInt = rhs->getAsComplexIntegerType(); 4993a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4994a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsComplexInt && rhsComplexInt) { 49951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (getIntegerTypeOrder(lhsComplexInt->getElementType(), 4996a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsComplexInt->getElementType()) >= 0) 4997a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // convert the rhs 4998a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4999a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (lhsComplexInt && rhs->isIntegerType()) { 5000a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 5001a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5002a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (rhsComplexInt && lhs->isIntegerType()) { 5003a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 5004a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5005a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5006a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5007a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Finally, we have two differing integer types. 5008a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The rules for this case are in C99 6.3.1.8 5009a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int compare = getIntegerTypeOrder(lhs, rhs); 5010a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman bool lhsSigned = lhs->isSignedIntegerType(), 5011a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsSigned = rhs->isSignedIntegerType(); 5012a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman QualType destType; 5013a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsSigned == rhsSigned) { 5014a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Same signedness; use the higher-ranked type 5015a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = compare >= 0 ? lhs : rhs; 5016a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (compare != (lhsSigned ? 1 : -1)) { 5017a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The unsigned type has greater than or equal rank to the 5018a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // signed type, so use the unsigned type 5019a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? rhs : lhs; 5020a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (getIntWidth(lhs) != getIntWidth(rhs)) { 5021a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The two types are different widths; if we are here, that 5022a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // means the signed type is larger than the unsigned type, so 5023a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // use the signed type. 5024a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? lhs : rhs; 5025a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { 5026a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The signed type is higher-ranked than the unsigned type, 5027a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // but isn't actually any bigger (like unsigned int and long 5028a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // on most 32-bit systems). Use the unsigned type corresponding 5029a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // to the signed type. 5030a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = getCorrespondingUnsignedType(lhsSigned ? lhs : rhs); 5031a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5032a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return destType; 5033a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 5034