ASTContext.cpp revision 86fa4311c8a330957ff5b765fbb0a7750ecd38c9
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() { 59bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek if (FreeMemory) { 60bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Deallocate all the types. 61bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek while (!Types.empty()) { 62bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek Types.back()->Destroy(*this); 63bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek Types.pop_back(); 64bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 65b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 66bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek for (llvm::FoldingSet<ExtQuals>::iterator 67bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek I = ExtQualNodes.begin(), E = ExtQualNodes.end(); I != E; ) { 68bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Increment in loop to prevent using deallocated memory. 690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Deallocate(&*I++); 70bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 73bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek for (llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 74bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); I != E; ) { 75bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Increment in loop to prevent using deallocated memory. 76bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 77bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek delete R; 78b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 79b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 80bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek for (llvm::DenseMap<const ObjCContainerDecl*, 81bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek const ASTRecordLayout*>::iterator 82bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek I = ObjCLayouts.begin(), E = ObjCLayouts.end(); I != E; ) { 83bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Increment in loop to prevent using deallocated memory. 84bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 85bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek delete R; 86b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 87b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 88ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 891ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 901ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNSEnd = NestedNameSpecifiers.end(); 92bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek NNS != NNSEnd; ) { 93bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Increment in loop to prevent using deallocated memory. 941ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 95bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 96ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 97ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 98ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 99ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 100b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 1042cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 1052cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 1062cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 1072cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 1117c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 112dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 1131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump#define TYPE(Name, Parent) 0, 114dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 115dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 116dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 117dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 118c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 121dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 124dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 125dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 126dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 127dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 128dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 129dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 130dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 131dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 132dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 1331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 134dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1352cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1362cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1372cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1382cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1392cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 143e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallvoid ASTContext::InitBuiltinType(CanQualType &R, BuiltinType::Kind K) { 1446b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BuiltinType *Ty = new (*this, TypeAlignment) BuiltinType(K); 145e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall R = CanQualType::CreateUnsafe(QualType(Ty, 0)); 1466b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Types.push_back(Ty); 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 15815b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 18064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1812df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1822df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1832df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1842df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1853a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1863a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1873a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1883a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 18964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 190f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 191f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char16Ty, BuiltinType::Char16); 192f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 193f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16Ty = getFromTargetType(Target.getChar16Type()); 194f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 195f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 196f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char32Ty, BuiltinType::Char32); 197f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 198f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32Ty = getFromTargetType(Target.getChar32Type()); 199f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2008e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 201898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 202898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 203898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 204898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 205898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 206898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 207898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 208898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 2098e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Placeholder type for C++0x auto declarations whose real type has 211e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 212e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 2131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2188e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2197e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 2201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 221de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // "Builtin" typedefs set by Sema::ActOnTranslationUnitScope(). 222de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = QualType(); 223de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = QualType(); 22413dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian ObjCSelTypedefType = QualType(); 2251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22613dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian // Builtin types for 'id', 'Class', and 'SEL'. 227de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); 228de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); 22913dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian InitBuiltinType(ObjCBuiltinSelTy, BuiltinType::ObjCSel); 23014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 231a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 2321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 23433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2356e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2366e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2376e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 240251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorMemberSpecializationInfo * 241663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas GregorASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) { 2427caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Var->isStaticDataMember() && "Not a static data member"); 243663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor llvm::DenseMap<const VarDecl *, MemberSpecializationInfo *>::iterator Pos 2447caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor = InstantiatedFromStaticDataMember.find(Var); 2457caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Pos == InstantiatedFromStaticDataMember.end()) 2467caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return 0; 2471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2487caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return Pos->second; 2497caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2507caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 252251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl, 253251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor TemplateSpecializationKind TSK) { 2547caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Inst->isStaticDataMember() && "Not a static data member"); 2557caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Tmpl->isStaticDataMember() && "Not a static data member"); 2567caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(!InstantiatedFromStaticDataMember[Inst] && 2577caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor "Already noted what static data member was instantiated from"); 258251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor InstantiatedFromStaticDataMember[Inst] 259251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor = new (*this) MemberSpecializationInfo(Tmpl, TSK); 2607caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2617caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2627ba107a1863ddfa1664555854f0d7bdb3c491c92John McCallNamedDecl * 263ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::getInstantiatedFromUsingDecl(UsingDecl *UUD) { 2647ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall llvm::DenseMap<UsingDecl *, NamedDecl *>::const_iterator Pos 265ed97649e9574b9d854fa4d6109c9333ae0993554John McCall = InstantiatedFromUsingDecl.find(UUD); 266ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (Pos == InstantiatedFromUsingDecl.end()) 2670d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return 0; 2681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2690d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return Pos->second; 2700d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2710d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 2720d8df780aef1acda5962347a32591efc629b6748Anders Carlssonvoid 273ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::setInstantiatedFromUsingDecl(UsingDecl *Inst, NamedDecl *Pattern) { 274ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert((isa<UsingDecl>(Pattern) || 275ed97649e9574b9d854fa4d6109c9333ae0993554John McCall isa<UnresolvedUsingValueDecl>(Pattern) || 276ed97649e9574b9d854fa4d6109c9333ae0993554John McCall isa<UnresolvedUsingTypenameDecl>(Pattern)) && 277ed97649e9574b9d854fa4d6109c9333ae0993554John McCall "pattern decl is not a using decl"); 278ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert(!InstantiatedFromUsingDecl[Inst] && "pattern already exists"); 279ed97649e9574b9d854fa4d6109c9333ae0993554John McCall InstantiatedFromUsingDecl[Inst] = Pattern; 280ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 281ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 282ed97649e9574b9d854fa4d6109c9333ae0993554John McCallUsingShadowDecl * 283ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::getInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst) { 284ed97649e9574b9d854fa4d6109c9333ae0993554John McCall llvm::DenseMap<UsingShadowDecl*, UsingShadowDecl*>::const_iterator Pos 285ed97649e9574b9d854fa4d6109c9333ae0993554John McCall = InstantiatedFromUsingShadowDecl.find(Inst); 286ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (Pos == InstantiatedFromUsingShadowDecl.end()) 287ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return 0; 288ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 289ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return Pos->second; 290ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 291ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 292ed97649e9574b9d854fa4d6109c9333ae0993554John McCallvoid 293ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::setInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst, 294ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UsingShadowDecl *Pattern) { 295ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert(!InstantiatedFromUsingShadowDecl[Inst] && "pattern already exists"); 296ed97649e9574b9d854fa4d6109c9333ae0993554John McCall InstantiatedFromUsingShadowDecl[Inst] = Pattern; 2970d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2980d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 299d8b285fee4471f393da8ee30f552ceacdc362afaAnders CarlssonFieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { 300d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos 301d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson = InstantiatedFromUnnamedFieldDecl.find(Field); 302d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson if (Pos == InstantiatedFromUnnamedFieldDecl.end()) 303d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return 0; 3041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 305d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return Pos->second; 306d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 307d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 308d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlssonvoid ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, 309d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson FieldDecl *Tmpl) { 310d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed"); 311d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Tmpl->getDeclName() && "Template field decl is not unnamed"); 312d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!InstantiatedFromUnnamedFieldDecl[Inst] && 313d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson "Already noted what unnamed field was instantiated from"); 3141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 315d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; 316d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 317d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 3182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregornamespace { 3191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump class BeforeInTranslationUnit 3202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor : std::binary_function<SourceRange, SourceRange, bool> { 3212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceManager *SourceMgr; 3221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor public: 3242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 3251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool operator()(SourceRange X, SourceRange Y) { 3272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 3282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor }; 3302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 3312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Determine whether the given comment is a Doxygen-style comment. 3332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Start the start of the comment text. 3352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param End the end of the comment text. 3372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Member whether we want to check whether this is a member comment 3392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// (which requires a < after the Doxygen-comment delimiter). Otherwise, 3402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// we only return true when we find a non-member comment. 3411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic bool 3421eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpisDoxygenComment(SourceManager &SourceMgr, SourceRange Comment, 3432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool Member = false) { 3441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *BufferStart 3452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(SourceMgr.getFileID(Comment.getBegin())).first; 3462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *Start = BufferStart + SourceMgr.getFileOffset(Comment.getBegin()); 3472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char* End = BufferStart + SourceMgr.getFileOffset(Comment.getEnd()); 3481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (End - Start < 4) 3502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor assert(Start[0] == '/' && "Not a comment?"); 3532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '*' && !(Start[2] == '!' || Start[2] == '*')) 3542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '/' && !(Start[2] == '!' || Start[2] == '/')) 3562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return (Start[3] == '<') == Member; 3592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 3602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Retrieve the comment associated with the given declaration, if 3621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// it has one. 3632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorconst char *ASTContext::getCommentForDecl(const Decl *D) { 3642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!D) 3652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check whether we have cached a comment string for this declaration 3682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // already. 3691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::DenseMap<const Decl *, std::string>::iterator Pos 3702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = DeclComments.find(D); 3712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Pos != DeclComments.end()) 3722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Pos->second.c_str(); 3732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If we have an external AST source and have not yet loaded comments from 3752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // that source, do so now. 3762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (ExternalSource && !LoadedExternalComments) { 3772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange> LoadedComments; 3782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExternalSource->ReadComments(LoadedComments); 3791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!LoadedComments.empty()) 3812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Comments.insert(Comments.begin(), LoadedComments.begin(), 3822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedComments.end()); 3831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments = true; 3852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If there are no comments anywhere, we won't find anything. 3882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Comments.empty()) 3892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the declaration doesn't map directly to a location in a file, we 3922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // can't find the comment. 3932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceLocation DeclStartLoc = D->getLocStart(); 3942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartLoc.isInvalid() || !DeclStartLoc.isFileID()) 3952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Find the comment that occurs just before this declaration. 3982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator LastComment 3991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = std::lower_bound(Comments.begin(), Comments.end(), 4002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceRange(DeclStartLoc), 4012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor BeforeInTranslationUnit(&SourceMgr)); 4021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the location for the start of the declaration and find the 4042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // beginning of the file buffer. 4051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<FileID, unsigned> DeclStartDecomp 4062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(DeclStartLoc); 4071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *FileBufferStart 4082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(DeclStartDecomp.first).first; 4091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // First check whether we have a comment for a member. 4112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment != Comments.end() && 4122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor !isa<TagDecl>(D) && !isa<NamespaceDecl>(D) && 4132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor isDoxygenComment(SourceMgr, *LastComment, true)) { 4142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 4152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 4162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first == LastCommentEndDecomp.first && 4172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second) 4181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump == SourceMgr.getLineNumber(LastCommentEndDecomp.first, 4192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second)) { 4202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The Doxygen member comment comes after the declaration starts and 4212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is on the same line and in the same file as the declaration. This 4222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is the comment we want. 4232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 4241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 4251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 4262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 4272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 4282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment == Comments.begin()) 4322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --LastComment; 4342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the end of the comment. 4362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 4372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 4381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment and the declaration aren't in the same file, then they 4402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // aren't related. 4412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first != LastCommentEndDecomp.first) 4422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check that we actually have a Doxygen comment. 4452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *LastComment)) 4462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Compute the starting line for the declaration and for the end of the 4492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // comment (this is expensive). 4501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned DeclStartLine 4512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second); 4522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned CommentEndLine 4531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = SourceMgr.getLineNumber(LastCommentEndDecomp.first, 4542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second); 4551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment does not end on the line prior to the declaration, then 4572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // the comment is not associated with the declaration at all. 4582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (CommentEndLine + 1 != DeclStartLine) 4592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // We have a comment, but there may be more comments on the previous lines. 4622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Keep looking so long as the comments are still Doxygen comments and are 4632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // still adjacent. 4641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ExpectedLine 4652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(LastComment->getBegin()) - 1; 4662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator FirstComment = LastComment; 4672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != Comments.begin()) { 4682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Look at the previous comment 4692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --FirstComment; 4702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> Decomp 4712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this previous comment is in a different file, we're done. 4742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Decomp.first != DeclStartDecomp.first) { 4752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this comment is not a Doxygen comment, we're done. 4802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *FirstComment)) { 4812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the line number is not what we expected, we're done. 4862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned Line = SourceMgr.getLineNumber(Decomp.first, Decomp.second); 4872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Line != ExpectedLine) { 4882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Set the next expected line number. 4931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExpectedLine 4942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(FirstComment->getBegin()) - 1; 4952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The iterator range [FirstComment, LastComment] contains all of the 4982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // BCPL comments that, together, are associated with this declaration. 4992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Form a single comment block string for this declaration that concatenates 5002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // all of these comments. 5012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 5022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != LastComment) { 5032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompStart 5042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getBegin()); 5052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompEnd 5062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 5072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + DecompStart.second, 5082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + DecompEnd.second + 1); 5092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 5102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 5111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Append the last comment line. 5131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 5141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 5152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 5162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 5172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 5182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 519464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 520464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 521464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 522a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 523b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 524b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 525b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 526183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const BuiltinType *BT = T->getAs<BuiltinType>(); 527b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 528b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 529b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 530b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 531b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 532b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 533b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 534b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 535b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 536196efbf095d75180305a45f3033caa1003746604Mike Stump/// getDeclAlignInBytes - Return a conservative estimate of the alignment of the 537af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 538af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 5395d484e8cf710207010720589d89602233de61d01Sebastian Redl/// If @p RefAsPointee, references are treated like their underlying type 5405d484e8cf710207010720589d89602233de61d01Sebastian Redl/// (for alignof), else they're treated like pointers (for CodeGen). 5415d484e8cf710207010720589d89602233de61d01Sebastian Redlunsigned ASTContext::getDeclAlignInBytes(const Decl *D, bool RefAsPointee) { 542dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 543dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 54440b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 545bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Align = std::max(Align, AA->getMaxAlignment()); 546dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 547af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 548af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 5496217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType* RT = T->getAs<ReferenceType>()) { 5505d484e8cf710207010720589d89602233de61d01Sebastian Redl if (RefAsPointee) 5515d484e8cf710207010720589d89602233de61d01Sebastian Redl T = RT->getPointeeType(); 5525d484e8cf710207010720589d89602233de61d01Sebastian Redl else 5535d484e8cf710207010720589d89602233de61d01Sebastian Redl T = getPointerType(RT->getPointeeType()); 5545d484e8cf710207010720589d89602233de61d01Sebastian Redl } 5555d484e8cf710207010720589d89602233de61d01Sebastian Redl if (!T->isIncompleteType() && !T->isFunctionType()) { 5564cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 557dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 558dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 559dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 560dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 561dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 562af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 563dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 564dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 565af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 566b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 567a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 568a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 5690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// 5700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// FIXME: Pointers into different addr spaces could have different sizes and 5710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// alignment requirements: getPointerInfo should take an AddrSpace, this 5720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// should take a QualType, &c. 573d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 5741d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 5755e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 5765e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 577a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 57872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 57972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 58018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 58172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 58272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 58318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 58472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 58572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 5865d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 5875d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 58818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 58918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 59018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 59118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 59218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 59372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 594fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 59518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 59618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 59718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 59818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 599fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 6001d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 6011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 60298be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 6039e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 604030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 605030d8846c7e520330007087e949f621989876e3aChris Lattner break; 6065c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 607213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 608030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 6099fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner const VectorType *VT = cast<VectorType>(T); 6109fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(VT->getElementType()); 6119fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = EltInfo.first*VT->getNumElements(); 6124bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 6136fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 6146fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 6159fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner if (VT->getNumElements() & (VT->getNumElements()-1)) { 6169fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Align = llvm::NextPowerOf2(Align); 6179fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = llvm::RoundUpToAlignment(Width, Align); 6189fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner } 619030d8846c7e520330007087e949f621989876e3aChris Lattner break; 620030d8846c7e520330007087e949f621989876e3aChris Lattner } 6215d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 6229e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 623a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 624692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 625d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 62618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 62718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 62818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 62918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 63018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 6316f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 6329e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 6339e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 6346f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 635692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 636692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 637692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 6386f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 6399e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 6409e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 6416f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 64264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 64364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 64464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 64564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 646f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char16: 647f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar16Width(); 648f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar16Align(); 649f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 650f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char32: 651f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar32Width(); 652f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar32Align(); 653f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 654692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 6556f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 6569e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 6579e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 6586f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 659692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 6606f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 6619e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 6629e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 6636f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 664692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 6656f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 6669e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 6679e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 6686f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 669692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 6706f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 6719e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 6729e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 6736f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 674ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 675ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 676ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 677ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 678ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 6796f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 6809e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 6819e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 6826f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6836f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 6845426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 6855426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 6866f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6876f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 6889e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 6899e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 6906f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6916e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 6926e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 6936e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 6941590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 695a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 696bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 697d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 6985426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 699f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 7006f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 701485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 702485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 703485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 704485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 705485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 706485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 7075d484e8cf710207010720589d89602233de61d01Sebastian Redl case Type::LValueReference: 7085d484e8cf710207010720589d89602233de61d01Sebastian Redl case Type::RValueReference: { 7095d484e8cf710207010720589d89602233de61d01Sebastian Redl // alignof and sizeof should never enter this code path here, so we go 7105d484e8cf710207010720589d89602233de61d01Sebastian Redl // the pointer route. 7115d484e8cf710207010720589d89602233de61d01Sebastian Redl unsigned AS = cast<ReferenceType>(T)->getPointeeType().getAddressSpace(); 7125d484e8cf710207010720589d89602233de61d01Sebastian Redl Width = Target.getPointerWidth(AS); 7135d484e8cf710207010720589d89602233de61d01Sebastian Redl Align = Target.getPointerAlign(AS); 7145d484e8cf710207010720589d89602233de61d01Sebastian Redl break; 7155d484e8cf710207010720589d89602233de61d01Sebastian Redl } 716f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 717f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 7185426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 719f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 720f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 721f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 722f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 723f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 7241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> PtrDiffInfo = 7251cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 7261cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 727f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 728f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 7291cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 7301cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 731f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 7325d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 7335d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 7345d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 7351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> EltInfo = 73698be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 7379e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 7385d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 7395d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 7405d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 74144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 7421d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 74344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 74444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 74544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 74644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 74744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 74872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 74972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 7501d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 7511d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 7521d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 7538389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 7548389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 7558389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 7568389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 7571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7581d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 7597176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 7607176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 7611d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 7627176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 7637176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 7647176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 765dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 766a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 7677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 7689fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::SubstTemplateTypeParm: 76949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return getTypeInfo(cast<SubstTemplateTypeParmType>(T)-> 77049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall getReplacementType().getTypePtr()); 77149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 7729fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::Elaborated: 7739fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner return getTypeInfo(cast<ElaboratedType>(T)->getUnderlyingType() 7749fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner .getTypePtr()); 7757da2431c23ef1ee8acb114e39692246e1801afc2John McCall 77618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 77718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 77840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 779bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Align = std::max(Aligned->getMaxAlignment(), 780bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt getTypeAlign(Typedef->getUnderlyingType().getTypePtr())); 78118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 78218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 78318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 7847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 7857176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 78618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 78718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 78818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 78918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 79018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 79118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 79218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 79318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 794395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 795395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 796395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 797395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 79818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 79918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 8001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 80118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 8021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(getCanonicalType(T) != T && 80318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 80418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 80518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 80618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 80718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 80818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 8091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 810464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 8119e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 812a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 813a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 814bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck/// getTypeSizeInChars - Return the size of the specified type, in characters. 815bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck/// This method does not work on incomplete types. 816bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen DyckCharUnits ASTContext::getTypeSizeInChars(QualType T) { 817199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return CharUnits::fromQuantity(getTypeSize(T) / getCharWidth()); 818bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck} 819bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen DyckCharUnits ASTContext::getTypeSizeInChars(const Type *T) { 820199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return CharUnits::fromQuantity(getTypeSize(T) / getCharWidth()); 821bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck} 822bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck 82386fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck/// getTypeAlign - Return the ABI-specified alignment of a type, in 82486fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck/// characters. This method does not work on incomplete types. 82586fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken DyckCharUnits ASTContext::getTypeAlignInChars(QualType T) { 82686fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck return CharUnits::fromQuantity(getTypeAlign(T) / getCharWidth()); 82786fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck} 82886fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken DyckCharUnits ASTContext::getTypeAlignInChars(const Type *T) { 82986fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck return CharUnits::fromQuantity(getTypeAlign(T) / getCharWidth()); 83086fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck} 83186fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck 83234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 83334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 83434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 83534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 83634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 83734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 8381eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 8391eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 840183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType* CT = T->getAs<ComplexType>()) 8411eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 8421eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 8431eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 8441eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 8451eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 84634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 84734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 84834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 849a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 850a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 851a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 852a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 853a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 854f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 855a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 856a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 857a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 858a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 859a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 860a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 861a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 862a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 863a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 864a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 865a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 866a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 8678e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 8688e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 8698e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 8708e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 8718e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 8728e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian bool CollectSynthesized) { 8738e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 8748e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 8758e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 8768e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (CollectSynthesized) 8788e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian CollectSynthesizedIvars(OI, Ivars); 8798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8819820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 8829820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 88317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 88417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8859820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8869820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8889820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 8899820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8909820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8919820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 8929820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8939820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8949820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// CollectSynthesizedIvars - 8959820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// This routine collect synthesized ivars for the designated class. 8969820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 8979820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 8989820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 89917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 90017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 9019820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 9029820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 9039820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 9049820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 9059820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 9069820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 9079820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 9089820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 9099820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 9109820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 9119820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 9129820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 913e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// CollectInheritedProtocols - Collect all protocols in current class and 914e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// those inherited by it. 915e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid ASTContext::CollectInheritedProtocols(const Decl *CDecl, 916e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVectorImpl<ObjCProtocolDecl*> &Protocols) { 917e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCInterfaceDecl *OI = dyn_cast<ObjCInterfaceDecl>(CDecl)) { 918e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 919e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 920e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 921e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Protocols.push_back(Proto); 922e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 923e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 924e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 925e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 926e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 927e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian // Categories of this Interface. 928e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (const ObjCCategoryDecl *CDeclChain = OI->getCategoryList(); 929e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CDeclChain; CDeclChain = CDeclChain->getNextClassCategory()) 930e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(CDeclChain, Protocols); 931e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (ObjCInterfaceDecl *SD = OI->getSuperClass()) 932e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian while (SD) { 933e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(SD, Protocols); 934e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian SD = SD->getSuperClass(); 935e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 936e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 937e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 938e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCCategoryDecl *OC = dyn_cast<ObjCCategoryDecl>(CDecl)) { 939e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OC->protocol_begin(), 940e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OC->protocol_end(); P != PE; ++P) { 941e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 942e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Protocols.push_back(Proto); 943e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 944e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 945e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 946e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 947e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 948e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 949e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCProtocolDecl *OP = dyn_cast<ObjCProtocolDecl>(CDecl)) { 950e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = OP->protocol_begin(), 951e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OP->protocol_end(); P != PE; ++P) { 952e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 953e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Protocols.push_back(Proto); 954e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 955e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 956e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 957e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 958e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 959e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 960e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 961e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 9628e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 9638e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 96417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 96517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 9668e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 9678e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 9688e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9698e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into nested protocols. 9708e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 9718e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->protocol_end(); P != E; ++P) 9728e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(*P); 9738e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 9748e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 9758e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) { 9778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 97817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 97917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 9808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 9818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 9828e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 9838e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into interface's protocol list for properties declared 9848e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // in the protocol and whose ivars are synthesized. 9858e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 9868e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 9878e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ObjCProtocolDecl *PD = (*P); 9888e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(PD); 9898e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 9908e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 9918e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 9928e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9938a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCInterfaceDecl,or NULL if none exists. 9948a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { 9958a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 9968a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 9978a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 9988a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCImplementationDecl>(I->second); 9998a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 10008a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 10018a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCCategoryDecl, or NULL if none exists. 10028a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { 10038a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 10048a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 10058a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 10068a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCCategoryImplDecl>(I->second); 10078a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 10088a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 10098a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 10108a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCInterfaceDecl. 10118a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, 10128a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImplementationDecl *ImplD) { 10138a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(IFaceD && ImplD && "Passed null params"); 10148a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[IFaceD] = ImplD; 10158a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 10168a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCCategoryDecl. 10178a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, 10188a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCCategoryImplDecl *ImplD) { 10198a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(CatD && ImplD && "Passed null params"); 10208a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[CatD] = ImplD; 10218a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 10228a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 1023a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Allocate an uninitialized TypeSourceInfo. 1024b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 1025a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// The caller should initialize the memory held by TypeSourceInfo using 1026b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// the TypeLoc wrappers. 1027b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 1028b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \param T the type that will be the basis for type source info. This type 1029b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// should refer to how the declarator was written in source code, not to 1030b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// what type semantic analysis resolved the declarator to. 1031a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo *ASTContext::CreateTypeSourceInfo(QualType T, 1032109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall unsigned DataSize) { 1033109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall if (!DataSize) 1034109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall DataSize = TypeLoc::getFullDataSizeForType(T); 1035109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall else 1036109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall assert(DataSize == TypeLoc::getFullDataSizeForType(T) && 1037a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall "incorrect data size provided to CreateTypeSourceInfo!"); 1038109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall 1039a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 1040a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall (TypeSourceInfo*)BumpAlloc.Allocate(sizeof(TypeSourceInfo) + DataSize, 8); 1041a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (TInfo) TypeSourceInfo(T); 1042a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 1043b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis} 1044b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis 1045a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo *ASTContext::getTrivialTypeSourceInfo(QualType T, 1046a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall SourceLocation L) { 1047a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = CreateTypeSourceInfo(T); 1048a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall DI->getTypeLoc().initialize(L); 1049a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall return DI; 1050a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall} 1051a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall 1052b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 1053b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 1054b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 1055b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 1056b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 105744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 1058b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 1059b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 1060532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 1061532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 106244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 10631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCContainerDecl *Key = 1064d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 1065d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 1066d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 106744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 1068453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 1069453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 10708e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned SynthCount = CountSynthesizedIvars(D); 1071d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 1072453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 1073453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 1074453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 10758e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 1076453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 1077453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 1078453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 10791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 108029445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D, Impl); 108129445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ObjCLayouts[Key] = NewEntry; 10821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 108344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 108444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 108544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 1086b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1087b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 1088b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 1089b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1090b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 1091b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1092b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 1093b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 1094b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1095b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 109688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 1097464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 1098464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 109998be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 11004b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 11014b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 11024bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 1103464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 1104ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // Note that we can't save a reference to the entry because this function 1105ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // is recursive. 1106ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman const ASTRecordLayout *Entry = ASTRecordLayouts[D]; 1107464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 11084bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 11091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 111029445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D); 1111ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman ASTRecordLayouts[D] = NewEntry; 11121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11135d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 1114464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 1115464175bba1318bef7905122e9fda20cff926df78Chris Lattner 1116f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlssonconst CXXMethodDecl *ASTContext::getKeyFunction(const CXXRecordDecl *RD) { 1117f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson RD = cast<CXXRecordDecl>(RD->getDefinition(*this)); 1118f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson assert(RD && "Cannot get key function for forward declarations!"); 1119f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1120f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson const CXXMethodDecl *&Entry = KeyFunctions[RD]; 1121f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson if (!Entry) 1122f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson Entry = ASTRecordLayoutBuilder::ComputeKeyFunction(RD); 1123f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson else 1124f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson assert(Entry == ASTRecordLayoutBuilder::ComputeKeyFunction(RD) && 1125f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson "Key function changed!"); 1126f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1127f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson return Entry; 1128f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson} 1129f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1130a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1131a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 1132a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1133a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 11340953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getExtQualType(const Type *TypeNode, Qualifiers Quals) { 11350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned Fast = Quals.getFastQualifiers(); 11360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeFastQualifiers(); 11370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Check if we've already instantiated this type. 11390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::FoldingSetNodeID ID; 11400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQuals::Profile(ID, TypeNode, Quals); 11410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void *InsertPos = 0; 11420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ExtQuals *EQ = ExtQualNodes.FindNodeOrInsertPos(ID, InsertPos)) { 11430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(EQ->getQualifiers() == Quals); 11440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(EQ, Fast); 11450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 11460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 11470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11486b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtQuals *New = new (*this, TypeAlignment) ExtQuals(*this, TypeNode, Quals); 11490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQualNodes.InsertNode(New, InsertPos); 11500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(New, Fast); 11510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 11520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 11530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11540953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getVolatileType(QualType T) { 11550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanT = getCanonicalType(T); 11560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (CanT.isVolatileQualified()) return T; 11570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 11590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 11600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addVolatile(); 11610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 11630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 11640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1165f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 1166f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 1167f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 1168f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 1169b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 11700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 11710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 11720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 11730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 11741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an address space specified, it cannot get 11760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 11770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasAddressSpace() && 11780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot be in multiple addr spaces!"); 11790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addAddressSpace(AddressSpace); 11801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1182ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 1183ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1184b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 11850953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr) { 1186d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 1187b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 1188d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 11891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11904027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 11916217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 119258f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff if (Pointee->isAnyPointerType()) { 11934027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 11944027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 11954027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 11964027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 11971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 11990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 12000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 12010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 12021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an ObjCGC specified, it cannot get 12040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 12050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasObjCGCAttr() && 12060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot have multiple ObjCGCs!"); 12070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addObjCGCAttr(GCAttr); 12081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1210d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1211a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 1212ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregorstatic QualType getNoReturnCallConvType(ASTContext& Context, QualType T, 1213ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor bool AddNoReturn, 1214ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv CallConv) { 12150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType ResultType; 121643c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (const PointerType *Pointer = T->getAs<PointerType>()) { 121743c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor QualType Pointee = Pointer->getPointeeType(); 1218ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = getNoReturnCallConvType(Context, Pointee, AddNoReturn, 1219ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallConv); 122043c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (ResultType == Pointee) 122143c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1222ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1223ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getPointerType(ResultType); 122443c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else if (const BlockPointerType *BlockPointer 122543c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor = T->getAs<BlockPointerType>()) { 122643c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor QualType Pointee = BlockPointer->getPointeeType(); 1227ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = getNoReturnCallConvType(Context, Pointee, AddNoReturn, 1228ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallConv); 122943c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (ResultType == Pointee) 123043c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1231ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1232ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getBlockPointerType(ResultType); 1233ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor } else if (const FunctionType *F = T->getAs<FunctionType>()) { 1234ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor if (F->getNoReturnAttr() == AddNoReturn && F->getCallConv() == CallConv) 123543c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1236ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 123743c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (const FunctionNoProtoType *FNPT = dyn_cast<FunctionNoProtoType>(F)) { 1238ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getFunctionNoProtoType(FNPT->getResultType(), 1239ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor AddNoReturn, CallConv); 12400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else { 124143c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor const FunctionProtoType *FPT = cast<FunctionProtoType>(F); 12420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType 1243ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor = Context.getFunctionType(FPT->getResultType(), FPT->arg_type_begin(), 1244ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getNumArgs(), FPT->isVariadic(), 1245ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getTypeQuals(), 1246ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->hasExceptionSpec(), 1247ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->hasAnyExceptionSpec(), 1248ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getNumExceptions(), 1249ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->exception_begin(), 1250ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor AddNoReturn, CallConv); 12510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 125243c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else 125343c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1254ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1255ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return Context.getQualifiedType(ResultType, T.getLocalQualifiers()); 1256ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 1257ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1258ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getNoReturnType(QualType T, bool AddNoReturn) { 1259ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return getNoReturnCallConvType(*this, T, AddNoReturn, T.getCallConv()); 1260ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 1261ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1262ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getCallConvType(QualType T, CallingConv CallConv) { 1263ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return getNoReturnCallConvType(*this, T, T.getNoReturnAttr(), CallConv); 12642455636163fdd18581d7fdae816433f886d88213Mike Stump} 12652455636163fdd18581d7fdae816433f886d88213Mike Stump 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 12675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 12685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 12695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 12725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 12731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 12765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 12771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 12795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1281467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1282f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 12831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1286f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12886b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ComplexType *New = new (*this, TypeAlignment) ComplexType(T, Canonical); 12895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 12915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 12955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 12965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 12975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 13005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 13011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 13045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 13051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 13075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1309467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1310f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 13111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1314f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13166b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall PointerType *New = new (*this, TypeAlignment) PointerType(T, Canonical); 13175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 13195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getBlockPointerType - Return the uniqued reference to the type for 13235618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 13245618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1325296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1326296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 13275618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 13285618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 13295618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 13301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13315618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 13325618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 13335618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 13345618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 13351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the block pointee type isn't canonical, this won't be a canonical 13375618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 13385618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 1339467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 13405618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 13411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13425618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 13435618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 13445618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1345f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13465618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 13476b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BlockPointerType *New 13486b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) BlockPointerType(T, Canonical); 13495618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 13505618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 13515618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 13525618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 13535618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 13547c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 13557c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 135654e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType ASTContext::getLValueReferenceType(QualType T, bool SpelledAsLValue) { 13575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 13585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 13595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 136054e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, SpelledAsLValue); 13615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13637c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 13647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 13655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 13667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 136754e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 136854e14c4db764c0636160d26c5bbf491637c83a76John McCall 13695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 13705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 13715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 137254e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!SpelledAsLValue || InnerRef || !T.isCanonical()) { 137354e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 137454e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getLValueReferenceType(getCanonicalType(PointeeType)); 13757c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13767c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 13777c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 13787c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 13797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 13817c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13826b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall LValueReferenceType *New 138354e14c4db764c0636160d26c5bbf491637c83a76John McCall = new (*this, TypeAlignment) LValueReferenceType(T, Canonical, 138454e14c4db764c0636160d26c5bbf491637c83a76John McCall SpelledAsLValue); 13857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 13867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 138754e14c4db764c0636160d26c5bbf491637c83a76John McCall 13887c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 13897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 13907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13917c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 13927c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 13937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 13947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 13957c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 13967c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 139754e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, false); 13987c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13997c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 14007c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 14017c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 14027c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 14037c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 140454e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 140554e14c4db764c0636160d26c5bbf491637c83a76John McCall 14067c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 14077c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 14087c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 140954e14c4db764c0636160d26c5bbf491637c83a76John McCall if (InnerRef || !T.isCanonical()) { 141054e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 141154e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getRValueReferenceType(getCanonicalType(PointeeType)); 14127c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 14135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 14147c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 14157c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1416f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14196b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall RValueReferenceType *New 14206b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); 14215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 14227c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 14235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 14245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1426f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1427f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 14281eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) { 1429f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1430f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1431f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1432f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1433f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1434f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1435f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1436f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1437f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1438f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1439f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1440f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1441f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 144287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor if (!T.isCanonical() || !Cls->isCanonicalUnqualified()) { 1443f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1444f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1445f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1446f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1447f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1448f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1449f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 14506b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall MemberPointerType *New 14516b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); 1452f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1453f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1454f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1455f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1456f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 14571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getConstantArrayType - Return the unique reference to the type for an 1458fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 14591eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getConstantArrayType(QualType EltTy, 146038aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1461c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1462c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1463923d56d436f750bc1f29db50e641078725558a1bSebastian Redl assert((EltTy->isDependentType() || 1464923d56d436f750bc1f29db50e641078725558a1bSebastian Redl EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && 1465587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1466587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 146738aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 146838aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 146938aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 147038aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 14711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 14730be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 14741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 14761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ConstantArrayType *ATP = 14777192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 14785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 14791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 14815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 14825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1483467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 14841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1485c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 14865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 14871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ConstantArrayType *NewIP = 14887192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1489f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14926b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType *New = new(*this,TypeAlignment) 14936b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 14947192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 14955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 14965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 14975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1499bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1500bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 15017e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 15027e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1503c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 15047e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 15057e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1506c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1507c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1508c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 15096b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType *New = new(*this, TypeAlignment) 15106b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType(EltTy, QualType(), NumElts, ASM, EltTypeQuals, Brackets); 1511c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1512c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1513c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1514c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1515c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1516c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1517898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1518898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 151904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor/// type. 15207e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 15217e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1522898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 15237e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 15247e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1525cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor assert((!NumElts || NumElts->isTypeDependent() || 1526cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor NumElts->isValueDependent()) && 1527898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1528898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 152904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor void *InsertPos = 0; 1530cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayType *Canon = 0; 1531cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1532cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor if (NumElts) { 1533cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // Dependently-sized array types that do not have a specified 1534cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // number of elements will have their sizes deduced from an 1535cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // initializer. 1536cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor llvm::FoldingSetNodeID ID; 1537cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayType::Profile(ID, *this, getCanonicalType(EltTy), ASM, 1538cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor EltTypeQuals, NumElts); 1539cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1540cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor Canon = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1541cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor } 1542cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 154304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *New; 154404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (Canon) { 154504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // We already have a canonical version of this array type; use it as 154604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // the canonical type for a newly-built type. 15476b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15486b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(Canon, 0), 15496b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 155004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 155104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType CanonEltTy = getCanonicalType(EltTy); 155204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (CanonEltTy == EltTy) { 15536b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15546b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(), 15556b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 1556cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1557cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor if (NumElts) 1558cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayTypes.InsertNode(New, InsertPos); 155904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 156004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType Canon = getDependentSizedArrayType(CanonEltTy, NumElts, 156104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor ASM, EltTypeQuals, 156204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor SourceRange()); 15636b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15646b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, Canon, 15656b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 156604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 156704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 15681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1569898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1570898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1571898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1572898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1573c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1574c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1575c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1576c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 15770be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1578c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1579c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 15801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (IncompleteArrayType *ATP = 1581c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1582c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1583c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1584c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1585c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1586c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1587c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1588467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 1589f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 15902bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1591c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1592c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1593c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1594c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1595f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15962bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1597c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 15986b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType *New = new (*this, TypeAlignment) 15996b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType(EltTy, Canonical, ASM, EltTypeQuals); 1600c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1601c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1602c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1603c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1604fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1605fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 160673322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 160773322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 160873322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 16095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 16101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1611f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 161273322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 16131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 16155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 16161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VectorType::Profile(ID, vecType, NumElts, Type::Vector); 16175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 16195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 16205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 16225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 16235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1624467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!vecType.isCanonical()) { 1625f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 16261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 16285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1629f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16316b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType *New = new (*this, TypeAlignment) 16326b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType(vecType, NumElts, Canonical); 16335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 16345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 16355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 16365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1638213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 163973322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1640213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 164173322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 16421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1643f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1644213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 16451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 164673322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 164773322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 16481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 164973322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 165073322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 165173322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 165273322924127c873c13101b705dd823f5539ffa5fSteve Naroff 165373322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 165473322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 165573322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 1656467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!vecType.isCanonical()) { 1657213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 16581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 165973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 166073322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1661f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 166273322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 16636b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType *New = new (*this, TypeAlignment) 16646b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType(vecType, NumElts, Canonical); 166573322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 166673322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 166773322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 166873322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 166973322924127c873c13101b705dd823f5539ffa5fSteve Naroff 16701eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 16719cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 16729cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 16732ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor llvm::FoldingSetNodeID ID; 16741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), 16752ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr); 16761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16772ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor void *InsertPos = 0; 16782ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *Canon 16792ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 16802ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *New; 16812ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (Canon) { 16822ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // We already have a canonical version of this array type; use it as 16832ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // the canonical type for a newly-built type. 16846b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16856b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), 16866b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall SizeExpr, AttrLoc); 16872ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 16882ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType CanonVecTy = getCanonicalType(vecType); 16892ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (CanonVecTy == vecType) { 16906b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16916b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, 16926b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall AttrLoc); 16932ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorTypes.InsertNode(New, InsertPos); 16942ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 16952ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType Canon = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, 16962ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SourceLocation()); 16976b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16986b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, Canon, SizeExpr, AttrLoc); 16992ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 17002ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 17011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17029cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 17039cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 17049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 17059cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1706ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregorstatic CallingConv getCanonicalCallingConv(CallingConv CC) { 1707ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor if (CC == CC_C) 1708ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return CC_Default; 1709ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return CC; 1710ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 1711ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 171272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 17135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1714ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getFunctionNoProtoType(QualType ResultTy, bool NoReturn, 1715ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv CallConv) { 17165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 17175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 17185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 17192455636163fdd18581d7fdae816433f886d88213Mike Stump FunctionNoProtoType::Profile(ID, ResultTy, NoReturn); 17201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 17221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionNoProtoType *FT = 172372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 17245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 17251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1727ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor if (!ResultTy.isCanonical() || 1728ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor getCanonicalCallingConv(CallConv) != CallConv) { 1729ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy), NoReturn, 1730ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor getCanonicalCallingConv(CallConv)); 17311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 173372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 173472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1735f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 17365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17386b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType *New = new (*this, TypeAlignment) 17396b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType(ResultTy, Canonical, NoReturn); 17405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 174172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 17425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 17435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 17465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 174761710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1748971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1749465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1750465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 1751ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor const QualType *ExArray, bool NoReturn, 1752ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv CallConv) { 17535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 17545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 17555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 175672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1757465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 17582455636163fdd18581d7fdae816433f886d88213Mike Stump NumExs, ExArray, NoReturn); 17595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 17611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionProtoType *FTP = 176272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 17635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1764465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1765465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 176654e14c4db764c0636160d26c5bbf491637c83a76John McCall bool isCanonical = !hasExceptionSpec && ResultTy.isCanonical(); 17675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 176854e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!ArgArray[i].isCanonicalAsParam()) 17695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 17705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1772465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 17735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1774ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor if (!isCanonical || getCanonicalCallingConv(CallConv) != CallConv) { 17755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 17765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 17775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 177854e14c4db764c0636160d26c5bbf491637c83a76John McCall CanonicalArgs.push_back(getCanonicalParamType(ArgArray[i])); 1779465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1780f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1781beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 178247259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor isVariadic, TypeQuals, false, 1783ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor false, 0, 0, NoReturn, 1784ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor getCanonicalCallingConv(CallConv)); 1785465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 17865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 178772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 178872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1789f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 17905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1791465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 179272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1793465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1794465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 17951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FunctionProtoType *FTP = 1796465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1797465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 17986b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumExs*sizeof(QualType), TypeAlignment); 179972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1800465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1801ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ExArray, NumExs, Canonical, NoReturn, CallConv); 18025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 180372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 18045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 18055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 18065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18072ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 18082ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 18094b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 18101e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 18112ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 18121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18131e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 18142ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1815fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1816fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 18179fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (ObjCInterfaceDecl *ObjCInterface 18189fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump = dyn_cast<ObjCInterfaceDecl>(Decl)) 18192ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 182049aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1821c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1822566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1823566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1824f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 18256b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) RecordType(Record); 18269fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1827566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1828566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1829f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 18306b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) EnumType(Enum); 1831ed97649e9574b9d854fa4d6109c9333ae0993554John McCall } else if (UnresolvedUsingTypenameDecl *Using = 1832ed97649e9574b9d854fa4d6109c9333ae0993554John McCall dyn_cast<UnresolvedUsingTypenameDecl>(Decl)) { 1833ed97649e9574b9d854fa4d6109c9333ae0993554John McCall Decl->TypeForDecl = new (*this, TypeAlignment) UnresolvedUsingType(Using); 18349fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else 18352ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 183649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 18374b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 183849aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 18392ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 18402ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 18415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 18425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 18435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 18445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 18451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1846f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 18476b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new(*this, TypeAlignment) 18486b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypedefType(Type::Typedef, Decl, Canonical); 18495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 18505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 18515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 18525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 185349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// \brief Retrieve a substitution-result type. 185449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallQualType 185549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallASTContext::getSubstTemplateTypeParmType(const TemplateTypeParmType *Parm, 185649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType Replacement) { 1857467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(Replacement.isCanonical() 185849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall && "replacement types must always be canonical"); 185949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 186049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall llvm::FoldingSetNodeID ID; 186149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType::Profile(ID, Parm, Replacement); 186249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall void *InsertPos = 0; 186349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType *SubstParm 186449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall = SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 186549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 186649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall if (!SubstParm) { 186749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstParm = new (*this, TypeAlignment) 186849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType(Parm, Replacement); 186949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall Types.push_back(SubstParm); 187049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos); 187149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 187249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 187349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return QualType(SubstParm, 0); 187449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall} 187549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 1876fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 18771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parameter or parameter pack with the given depth, index, and (optionally) 187876e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 18791eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 188076e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1881fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1882fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 188376e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1884fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 18851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateTypeParmType *TypeParm 1886fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1887fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1888fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1889fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 18901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 189176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 189276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 18936b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 18946b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack, Name, Canon); 189576e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 18966b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 18976b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack); 1898fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1899fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1900fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1901fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1902fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1903fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1904fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 19051eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 19067532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 1907d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo &Args, 1908833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall QualType Canon) { 1909d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall unsigned NumArgs = Args.size(); 1910d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 1911833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall llvm::SmallVector<TemplateArgument, 4> ArgVec; 1912833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.reserve(NumArgs); 1913833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall for (unsigned i = 0; i != NumArgs; ++i) 1914833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.push_back(Args[i].getArgument()); 1915833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1916833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return getTemplateSpecializationType(Template, ArgVec.data(), NumArgs, Canon); 1917833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall} 1918833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1919833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallQualType 1920833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallASTContext::getTemplateSpecializationType(TemplateName Template, 19217532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 19227532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 19237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 1924b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (!Canon.isNull()) 1925b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = getCanonicalType(Canon); 1926b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor else { 1927b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor // Build the canonical template specialization type. 19281275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateName CanonTemplate = getCanonicalTemplateName(Template); 19291275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::SmallVector<TemplateArgument, 4> CanonArgs; 19301275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.reserve(NumArgs); 19311275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor for (unsigned I = 0; I != NumArgs; ++I) 19321275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.push_back(getCanonicalTemplateArgument(Args[I])); 19331275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 19341275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Determine whether this canonical template specialization type already 19351275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // exists. 19361275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::FoldingSetNodeID ID; 19371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType::Profile(ID, CanonTemplate, 1938828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor CanonArgs.data(), NumArgs, *this); 19391275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 19401275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor void *InsertPos = 0; 19411275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateSpecializationType *Spec 19421275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 19431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19441275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor if (!Spec) { 19451275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate a new canonical template specialization type. 19461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 19471275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor sizeof(TemplateArgument) * NumArgs), 19486b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 19491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Spec = new (Mem) TemplateSpecializationType(*this, CanonTemplate, 19501275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.data(), NumArgs, 1951b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon); 19521275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Types.push_back(Spec); 19531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 19541275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 19551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1956b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (Canon.isNull()) 1957b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = QualType(Spec, 0); 19581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(Canon->isDependentType() && 19591275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor "Non-dependent template-id type must have a canonical type"); 1960b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor } 1961fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 19621275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate the (non-canonical) template specialization type, but don't 19631275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // try to unique it: these types typically have location information that 19641275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // we don't unique and don't want to lose. 19651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 196640808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 19676b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 19681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType *Spec 19691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = new (Mem) TemplateSpecializationType(*this, Template, Args, NumArgs, 1970828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor Canon); 19711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 197255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 19731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(Spec, 0); 197455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 197555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 19761eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 1977ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1978e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1979e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1980ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1981e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1982e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 19831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualifiedNameType *T 1984e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1985e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1986e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1987e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 19881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T = new (*this) QualifiedNameType(NNS, NamedType, 1989ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1990e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1991e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1992e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1993e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1994e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 19951eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1996d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1997d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1998d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1999d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2000d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 2001d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 2002d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 2003d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 2004d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2005d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2006d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 2007d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 2008d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2009d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 20101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypenameType *T 2011d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 2012d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 2013d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 2014d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2015d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 2016d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 2017d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 20181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 2019d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2020d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 20211eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 20221eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpASTContext::getTypenameType(NestedNameSpecifier *NNS, 20231734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 20241734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 20251734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 20261734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20271734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 20281734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 20291734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 20301734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 20311734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 2032183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall = CanonType->getAs<TemplateSpecializationType>(); 20331734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 20341734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 20351734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 20361734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 20371734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 20381734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20391734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 20401734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 20411734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20421734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 20431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypenameType *T 20441734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 20451734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 20461734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 20471734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20481734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 20491734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 20501734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 20511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 20521734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 20531734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20547da2431c23ef1ee8acb114e39692246e1801afc2John McCallQualType 20557da2431c23ef1ee8acb114e39692246e1801afc2John McCallASTContext::getElaboratedType(QualType UnderlyingType, 20567da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::TagKind Tag) { 20577da2431c23ef1ee8acb114e39692246e1801afc2John McCall llvm::FoldingSetNodeID ID; 20587da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::Profile(ID, UnderlyingType, Tag); 20591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20607da2431c23ef1ee8acb114e39692246e1801afc2John McCall void *InsertPos = 0; 20617da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 20627da2431c23ef1ee8acb114e39692246e1801afc2John McCall if (T) 20637da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 20647da2431c23ef1ee8acb114e39692246e1801afc2John McCall 20657da2431c23ef1ee8acb114e39692246e1801afc2John McCall QualType Canon = getCanonicalType(UnderlyingType); 20667da2431c23ef1ee8acb114e39692246e1801afc2John McCall 20677da2431c23ef1ee8acb114e39692246e1801afc2John McCall T = new (*this) ElaboratedType(UnderlyingType, Tag, Canon); 20687da2431c23ef1ee8acb114e39692246e1801afc2John McCall Types.push_back(T); 20697da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedTypes.InsertNode(T, InsertPos); 20707da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 20717da2431c23ef1ee8acb114e39692246e1801afc2John McCall} 20727da2431c23ef1ee8acb114e39692246e1801afc2John McCall 207388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 207488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 207588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 207688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 20772e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 207888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 207988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 208054e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic bool areSortedAndUniqued(ObjCProtocolDecl **Protocols, 208154e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned NumProtocols) { 208254e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols == 0) return true; 208354e14c4db764c0636160d26c5bbf491637c83a76John McCall 208454e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 1; i != NumProtocols; ++i) 208554e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!CmpProtocolNames(Protocols[i-1], Protocols[i])) 208654e14c4db764c0636160d26c5bbf491637c83a76John McCall return false; 208754e14c4db764c0636160d26c5bbf491637c83a76John McCall return true; 208854e14c4db764c0636160d26c5bbf491637c83a76John McCall} 208954e14c4db764c0636160d26c5bbf491637c83a76John McCall 209054e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic void SortAndUniqueProtocols(ObjCProtocolDecl **Protocols, 209188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 209288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 20931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 209488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 209588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 209688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 209788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 209888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 209988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 210088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 210188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2102d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 2103d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 210414108da7f7fc059772711e4ffee1322a27b152a7Steve NaroffQualType ASTContext::getObjCObjectPointerType(QualType InterfaceT, 21051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCProtocolDecl **Protocols, 2106d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff unsigned NumProtocols) { 2107d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff llvm::FoldingSetNodeID ID; 210814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ObjCObjectPointerType::Profile(ID, InterfaceT, Protocols, NumProtocols); 2109d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 2110d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 2111d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (ObjCObjectPointerType *QT = 2112d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 2113d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QT, 0); 2114d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 211554e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 211654e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 211754e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!InterfaceT.isCanonical() || 211854e14c4db764c0636160d26c5bbf491637c83a76John McCall !areSortedAndUniqued(Protocols, NumProtocols)) { 211954e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!areSortedAndUniqued(Protocols, NumProtocols)) { 212054e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 212154e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 212254e14c4db764c0636160d26c5bbf491637c83a76John McCall 212354e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 212454e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 212554e14c4db764c0636160d26c5bbf491637c83a76John McCall 212654e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 212754e14c4db764c0636160d26c5bbf491637c83a76John McCall &Sorted[0], UniqueCount); 212854e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 212954e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 213054e14c4db764c0636160d26c5bbf491637c83a76John McCall Protocols, NumProtocols); 213154e14c4db764c0636160d26c5bbf491637c83a76John McCall } 213254e14c4db764c0636160d26c5bbf491637c83a76John McCall 213354e14c4db764c0636160d26c5bbf491637c83a76John McCall // Regenerate InsertPos. 213454e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 213554e14c4db764c0636160d26c5bbf491637c83a76John McCall } 213654e14c4db764c0636160d26c5bbf491637c83a76John McCall 2137d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // No Match; 21386b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ObjCObjectPointerType *QType = new (*this, TypeAlignment) 213971842cc07aafdebc9b180322ebb46f530beca5d6Ted Kremenek ObjCObjectPointerType(*this, Canonical, InterfaceT, Protocols, 214071842cc07aafdebc9b180322ebb46f530beca5d6Ted Kremenek NumProtocols); 21411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2142d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 2143d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 2144d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QType, 0); 2145d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 214688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2147c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// getObjCInterfaceType - Return the unique reference to the type for the 2148c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// specified ObjC interface decl. The list of protocols is optional. 2149c15cb2af27514ecc879daba9aa01389c5203685dSteve NaroffQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, 2150a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 21514b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 2152c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 21531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21544b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 2155c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (ObjCInterfaceType *QT = 2156c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 21574b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 21581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 215954e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 216054e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 216154e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols && !areSortedAndUniqued(Protocols, NumProtocols)) { 216254e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 216354e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 21644b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 216554e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 216654e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 216724fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 216854e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCInterfaceType(Decl, &Sorted[0], UniqueCount); 216954e14c4db764c0636160d26c5bbf491637c83a76John McCall 217054e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos); 217154e14c4db764c0636160d26c5bbf491637c83a76John McCall } 217254e14c4db764c0636160d26c5bbf491637c83a76John McCall 217354e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceType *QType = new (*this, TypeAlignment) 217471842cc07aafdebc9b180322ebb46f530beca5d6Ted Kremenek ObjCInterfaceType(*this, Canonical, const_cast<ObjCInterfaceDecl*>(Decl), 217554e14c4db764c0636160d26c5bbf491637c83a76John McCall Protocols, NumProtocols); 217624fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 217724fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis Types.push_back(QType); 217854e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.InsertNode(QType, InsertPos); 217924fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis return QualType(QType, 0); 218024fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis} 218124fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 218272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 218372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 21849752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 21851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// DeclRefExpr's. This doesn't effect the type checker, since it operates 21869752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 218772564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 2188dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType *toe; 2189b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (tofExpr->isTypeDependent()) { 2190b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor llvm::FoldingSetNodeID ID; 2191b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType::Profile(ID, *this, tofExpr); 21921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2193b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor void *InsertPos = 0; 2194b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType *Canon 2195b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); 2196b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (Canon) { 2197b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // We already have a "canonical" version of an identical, dependent 2198b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // typeof(expr) type. Use that as our canonical type. 21996b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, 2200b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor QualType((TypeOfExprType*)Canon, 0)); 2201b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2202b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor else { 2203b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // Build a new, canonical typeof(expr) type. 22046b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon 22056b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) DependentTypeOfExprType(*this, tofExpr); 2206b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); 2207b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor toe = Canon; 2208b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2209b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } else { 2210dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType Canonical = getCanonicalType(tofExpr->getType()); 22116b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, Canonical); 2212dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 22139752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 22149752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 2215d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2216d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 22179752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 22189752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 22199752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 22201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 22219752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 2222d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 2223f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 22246b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeOfType *tot = new (*this, TypeAlignment) TypeOfType(tofType, Canonical); 22259752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 22269752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 2227d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2228d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 222960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 223060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 223160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 2232a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 2233a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 22341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 223560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 223660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 223760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 223860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 223960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 224060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 224160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 224260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 224360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 224460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 224560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 224660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 224760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 224860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 224960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 22501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 225160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 22521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 225460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 225560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 225660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 22571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 225860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 225960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 226060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 2261395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 2262395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 2263395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 22641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 2265395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 2266395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 2267dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor DecltypeType *dt; 22689d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (e->isTypeDependent()) { 22699d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor llvm::FoldingSetNodeID ID; 22709d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType::Profile(ID, *this, e); 22711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22729d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor void *InsertPos = 0; 22739d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType *Canon 22749d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); 22759d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (Canon) { 22769d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // We already have a "canonical" version of an equivalent, dependent 22779d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // decltype type. Use that as our canonical type. 22786b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, DependentTy, 22799d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor QualType((DecltypeType*)Canon, 0)); 22809d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 22819d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor else { 22829d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // Build a new, canonical typeof(expr) type. 22836b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon = new (*this, TypeAlignment) DependentDecltypeType(*this, e); 22849d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeTypes.InsertNode(Canon, InsertPos); 22859d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor dt = Canon; 22869d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 22879d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } else { 2288dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType T = getDecltypeForExpr(e, *this); 22896b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, T, getCanonicalType(T)); 2290dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 2291395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 2292395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 2293395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 2294395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 22955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 22965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 2297e607ed068334bacb8d7b093996b4671c6ca79e25Mike StumpQualType ASTContext::getTagDeclType(const TagDecl *Decl) { 2298d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 2299e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // FIXME: What is the design on getTagDeclType when it requires casting 2300e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // away const? mutable? 2301e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump return getTypeDeclType(const_cast<TagDecl*>(Decl)); 23025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 23051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 23061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// needs to agree with the definition in <stddef.h>. 2307a3ccda58913cc1a4b8564e349448b12acc462da7Anders CarlssonCanQualType ASTContext::getSizeType() const { 2308b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 23095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 231164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 231264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 231364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 231464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 231564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 231664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 231764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 231864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 231964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 232064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 232164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 232264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 232364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 232464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 23258b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 23268b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 23278b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 2328b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 23298b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 23308b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 2331e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2332e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 2333e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2334e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 233554e14c4db764c0636160d26c5bbf491637c83a76John McCallCanQualType ASTContext::getCanonicalParamType(QualType T) { 233654e14c4db764c0636160d26c5bbf491637c83a76John McCall // Push qualifiers into arrays, and then discard any remaining 233754e14c4db764c0636160d26c5bbf491637c83a76John McCall // qualifiers. 233854e14c4db764c0636160d26c5bbf491637c83a76John McCall T = getCanonicalType(T); 233954e14c4db764c0636160d26c5bbf491637c83a76John McCall const Type *Ty = T.getTypePtr(); 234054e14c4db764c0636160d26c5bbf491637c83a76John McCall 234154e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Result; 234254e14c4db764c0636160d26c5bbf491637c83a76John McCall if (isa<ArrayType>(Ty)) { 234354e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getArrayDecayedType(QualType(Ty,0)); 234454e14c4db764c0636160d26c5bbf491637c83a76John McCall } else if (isa<FunctionType>(Ty)) { 234554e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getPointerType(QualType(Ty, 0)); 234654e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 234754e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = QualType(Ty, 0); 234854e14c4db764c0636160d26c5bbf491637c83a76John McCall } 234954e14c4db764c0636160d26c5bbf491637c83a76John McCall 235054e14c4db764c0636160d26c5bbf491637c83a76John McCall return CanQualType::CreateUnsafe(Result); 235154e14c4db764c0636160d26c5bbf491637c83a76John McCall} 235254e14c4db764c0636160d26c5bbf491637c83a76John McCall 235377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 235477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 235577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 235677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 235777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 235877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 235950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas GregorCanQualType ASTContext::getCanonicalType(QualType T) { 23600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 23610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ptr = Quals.strip(T); 23620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanType = Ptr->getCanonicalTypeInternal(); 23630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 23640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // The canonical internal type will be the canonical type *except* 23650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // that we push type qualifiers down through array types. 23661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If there are no new qualifiers to push down, stop here. 23680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!Quals.hasQualifiers()) 236950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(CanType); 2370c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 23710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the type qualifiers are on an array type, get the canonical 23720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type of the array with the qualifiers applied to the element 23730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type. 2374c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 2375c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 23760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return CanQualType::CreateUnsafe(getQualifiedType(CanType, Quals)); 23771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2378c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2379c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 23800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(AT->getElementType(), Quals); 2381c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 23821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2383c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 238450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 238550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getConstantArrayType(NewEltTy, CAT->getSize(), 238650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor CAT->getSizeModifier(), 23870953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2388c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 238950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 239050d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 23910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 23921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2393898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 239450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 239550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getDependentSizedArrayType(NewEltTy, 2396bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2397bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 239850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getSizeModifier(), 23990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 240087a924e37dc40c6e3e2b33d1dbd646aeccf4c15bDouglas Gregor DSAT->getBracketsRange())->getCanonicalTypeInternal()); 2401898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2402c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 240350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(getVariableArrayType(NewEltTy, 2404bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 2405bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr()->Retain() : 0, 240650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getSizeModifier(), 24070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 240850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getBracketsRange())); 2409c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 2410c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 241128e318cc6008c2bc008f0caee70dc736a03d6289Chandler CarruthQualType ASTContext::getUnqualifiedArrayType(QualType T, 241228e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth Qualifiers &Quals) { 24135535c38a2fcface6c13bc8bbeca66882de2fa227Chandler Carruth Quals = T.getQualifiers(); 241428e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (!isa<ArrayType>(T)) { 24155535c38a2fcface6c13bc8bbeca66882de2fa227Chandler Carruth return T.getUnqualifiedType(); 241628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 241728e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 241828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth const ArrayType *AT = cast<ArrayType>(T); 241928e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth QualType Elt = AT->getElementType(); 2420c1ae0a8b0022a9fbb50d3413139f36ec5d8a63beZhongxing Xu QualType UnqualElt = getUnqualifiedArrayType(Elt, Quals); 242128e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (Elt == UnqualElt) 242228e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return T; 242328e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 242428e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(T)) { 242528e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getConstantArrayType(UnqualElt, CAT->getSize(), 242628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth CAT->getSizeModifier(), 0); 242728e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 242828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 242928e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(T)) { 243028e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getIncompleteArrayType(UnqualElt, IAT->getSizeModifier(), 0); 243128e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 243228e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 243328e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth const DependentSizedArrayType *DSAT = cast<DependentSizedArrayType>(T); 243428e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getDependentSizedArrayType(UnqualElt, DSAT->getSizeExpr()->Retain(), 243528e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth DSAT->getSizeModifier(), 0, 243628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth SourceRange()); 243728e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth} 243828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 243980ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCallDeclarationName ASTContext::getNameForTemplate(TemplateName Name) { 244080ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (TemplateDecl *TD = Name.getAsTemplateDecl()) 244180ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return TD->getDeclName(); 244280ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 244380ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (DependentTemplateName *DTN = Name.getAsDependentTemplateName()) { 244480ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (DTN->isIdentifier()) { 244580ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return DeclarationNames.getIdentifier(DTN->getIdentifier()); 244680ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } else { 244780ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return DeclarationNames.getCXXOperatorName(DTN->getOperator()); 244880ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } 244980ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } 245080ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 24510bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall OverloadedTemplateStorage *Storage = Name.getAsOverloadedTemplate(); 24520bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(Storage); 24530bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall return (*Storage->begin())->getDeclName(); 245480ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall} 245580ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 245625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 245725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 245825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 245925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 246097fbaa2a38804268a024f1a104b43fcf8b4411b0Argyrios Kyrtzidis return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); 246125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 24620bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(!Name.getAsOverloadedTemplate()); 24631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 246425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 246525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 246625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 246725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 246825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 2469db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregorbool ASTContext::hasSameTemplateName(TemplateName X, TemplateName Y) { 2470db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor X = getCanonicalTemplateName(X); 2471db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor Y = getCanonicalTemplateName(Y); 2472db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor return X.getAsVoidPointer() == Y.getAsVoidPointer(); 2473db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor} 2474db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor 24751eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateArgument 24761275ae098acda31fe0e434510c729fcfed0458a1Douglas GregorASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) { 24771275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor switch (Arg.getKind()) { 24781275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Null: 24791275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 24801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24811275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Expression: 24821275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 24831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24841275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Declaration: 2485833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(Arg.getAsDecl()->getCanonicalDecl()); 24861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2487788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor case TemplateArgument::Template: 2488788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor return TemplateArgument(getCanonicalTemplateName(Arg.getAsTemplate())); 2489788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor 24901275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Integral: 2491833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(*Arg.getAsIntegral(), 24921275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getIntegralType())); 24931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24941275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Type: 2495833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(getCanonicalType(Arg.getAsType())); 24961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24971275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Pack: { 24981275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Allocate in ASTContext 24991275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument *CanonArgs = new TemplateArgument[Arg.pack_size()]; 25001275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor unsigned Idx = 0; 25011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (TemplateArgument::pack_iterator A = Arg.pack_begin(), 25021275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor AEnd = Arg.pack_end(); 25031275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor A != AEnd; (void)++A, ++Idx) 25041275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs[Idx] = getCanonicalTemplateArgument(*A); 25051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25061275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument Result; 25071275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Result.setArgumentPack(CanonArgs, Arg.pack_size(), false); 25081275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Result; 25091275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 25101275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 25111275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 25121275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Silence GCC warning 25131275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor assert(false && "Unhandled template argument kind"); 25141275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(); 25151275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor} 25161275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 2517d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 2518d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 25191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!NNS) 2520d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2521d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2522d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 2523d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 2524d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 25251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 2526d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 2527d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 2528d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2529d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 2530d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 2531d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 2532d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 2533d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2534d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 2535d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 2536d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 25371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 0, 25381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 2539d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 2540d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2541d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2542d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 2543d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 2544d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2545d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2546d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2547d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2548d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2549d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2550d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2551c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2552c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2553c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 2554a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor if (!T.hasLocalQualifiers()) { 2555c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2556c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2557c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2558c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 25591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Handle the common negative case fast. 2561c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 25620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!isa<ArrayType>(CType)) 2563c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 25641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Apply any qualifiers from the array type to the element type. This 2566c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2567c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 25681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2569c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2570c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 257150d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor // we must propagate them down into the element type. 25720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 25730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 25740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ty = Qs.strip(T.getDesugaredType()); 25751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2576c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2577c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 25780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ATy == 0 || Qs.empty()) 2579c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 25801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2581c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2582c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2583c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2584c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 25850953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(ATy->getElementType(), Qs); 25861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2587c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2588c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2589c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 25900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2591c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2592c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2593c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 25940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 2595898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 25961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const DependentSizedArrayType *DSAT 2597898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2598898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 25991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getDependentSizedArrayType(NewEltTy, 2600bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2601bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 2602898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 26030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 26047e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 26051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2606c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 26077e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 2608bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 26090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getSizeExpr()->Retain() : 0, 2610c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 26110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 26127e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 261377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 261477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 261577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2616e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2617e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2618e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2619e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2620e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2621e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2622e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2623c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2624c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2625c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2626c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2627c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2628c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 26291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2630c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2631e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2632e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 26330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getQualifiedType(PtrTy, PrettyArrayType->getIndexTypeQualifiers()); 2634e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2635e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 26365e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas GregorQualType ASTContext::getBaseElementType(QualType QT) { 26370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 26385e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor while (true) { 26390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *UT = Qs.strip(QT); 26405e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor if (const ArrayType *AT = getAsArrayType(QualType(UT,0))) { 26415e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QT = AT->getElementType(); 26426dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump } else { 26430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qs.apply(QT); 26445e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 26455e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 26465e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor} 26475e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor 2648fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders CarlssonQualType ASTContext::getBaseElementType(const ArrayType *AT) { 2649fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson QualType ElemTy = AT->getElementType(); 26501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2651fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson if (const ArrayType *AT = getAsArrayType(ElemTy)) 2652fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson return getBaseElementType(AT); 26531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26546183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 26556183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 26566183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 26570de78998e7bda473b408437053e48661b510d453Fariborz Jahanian/// getConstantArrayElementCount - Returns number of constant array elements. 26581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpuint64_t 26590de78998e7bda473b408437053e48661b510d453Fariborz JahanianASTContext::getConstantArrayElementCount(const ConstantArrayType *CA) const { 26600de78998e7bda473b408437053e48661b510d453Fariborz Jahanian uint64_t ElementCount = 1; 26610de78998e7bda473b408437053e48661b510d453Fariborz Jahanian do { 26620de78998e7bda473b408437053e48661b510d453Fariborz Jahanian ElementCount *= CA->getSize().getZExtValue(); 26630de78998e7bda473b408437053e48661b510d453Fariborz Jahanian CA = dyn_cast<ConstantArrayType>(CA->getElementType()); 26640de78998e7bda473b408437053e48661b510d453Fariborz Jahanian } while (CA); 26650de78998e7bda473b408437053e48661b510d453Fariborz Jahanian return ElementCount; 26660de78998e7bda473b408437053e48661b510d453Fariborz Jahanian} 26670de78998e7bda473b408437053e48661b510d453Fariborz Jahanian 26685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 26695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2670a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2671183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) 26725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2673a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2674183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall assert(T->getAs<BuiltinType>() && "getFloatingRank(): not a floating type"); 2675183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall switch (T->getAs<BuiltinType>()->getKind()) { 2676a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 26775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 26785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 26795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 26805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 26825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 26831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 26841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// point or a complex type (based on typeDomain/typeSize). 2685716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2686716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 26871361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 26881361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 26891361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 26901361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 26911361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2692716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2693f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2694f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2695f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2696f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2697f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 26981361b11066239ea15764a2a844405352d87296b3Chris Lattner 26991361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 27001361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 27011361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 27021361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 27031361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 27041361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 27055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 27075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 27087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 27097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 27107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 27111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 2712a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2713a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2714a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 27151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2716a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2717fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2718a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2719fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2720fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 27215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 27225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2723f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2724f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2725f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2726f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2727467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(T->isCanonicalUnqualified() && "T should be canonicalized"); 2728f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2729842aef8d942a880eeb9535d40de31a86838264cbJohn McCall T = ET->getDecl()->getPromotionType().getTypePtr(); 2730f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2731a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2732a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2733a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2734f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2735f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2736f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2737f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2738f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2739f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2740f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 27417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 27427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2743f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 27447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 27457cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 27467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 27477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2748f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 27497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 27507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2751f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 27527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 27537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2754f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 27557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 27567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2757f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 27587cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 27597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2760f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 27612df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 27622df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 27632df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2764f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2765f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2766f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 276704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \brief Whether this is a promotable bitfield reference according 276804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// to C99 6.3.1.1p2, bullet 2 (and GCC extensions). 276904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// 277004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \returns the type this bit-field will promote to, or NULL if no 277104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// promotion occurs. 277204e8357f6801e9ff52673e7e899a67bbabf9de93Eli FriedmanQualType ASTContext::isPromotableBitField(Expr *E) { 277304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman FieldDecl *Field = E->getBitField(); 277404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (!Field) 277504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 277604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 277704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman QualType FT = Field->getType(); 277804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 277904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman llvm::APSInt BitWidthAP = Field->getBitWidth()->EvaluateAsInt(*this); 278004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t BitWidth = BitWidthAP.getZExtValue(); 278104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 278204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // GCC extension compatibility: if the bit-field size is less than or equal 278304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // to the size of int, it gets promoted no matter what its type is. 278404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // For instance, unsigned long bf : 4 gets promoted to signed int. 278504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth < IntSize) 278604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return IntTy; 278704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 278804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth == IntSize) 278904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return FT->isSignedIntegerType() ? IntTy : UnsignedIntTy; 279004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 279104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // Types bigger than int are not subject to promotions, and therefore act 279204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // like the base type. 279304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // FIXME: This doesn't quite match what gcc does, but what gcc does here 279404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // is ridiculous. 279504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 279604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman} 279704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 2798a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// getPromotedIntegerType - Returns the type that Promotable will 2799a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// promote to: C99 6.3.1.1p2, assuming that Promotable is a promotable 2800a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// integer type. 2801a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType ASTContext::getPromotedIntegerType(QualType Promotable) { 2802a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(!Promotable.isNull()); 2803a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isPromotableIntegerType()); 2804842aef8d942a880eeb9535d40de31a86838264cbJohn McCall if (const EnumType *ET = Promotable->getAs<EnumType>()) 2805842aef8d942a880eeb9535d40de31a86838264cbJohn McCall return ET->getDecl()->getPromotionType(); 2806a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (Promotable->isSignedIntegerType()) 2807a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return IntTy; 2808a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t PromotableSize = getTypeSize(Promotable); 2809a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 2810a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize); 2811a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return (PromotableSize != IntSize) ? IntTy : UnsignedIntTy; 2812a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 2813a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 28141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getIntegerTypeOrder - Returns the highest ranked integer type: 28157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 28161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 28177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2818f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2819f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 28207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 28211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2822f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2823f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 28241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 28267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 28271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 28297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 28307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 28317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 28321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 28347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 28357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 28367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 28377cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 28381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 28407cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 28411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 28427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 28437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 28447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 28457cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 28467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 28477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 28481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 28507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 28511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 28527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 28535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 285471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 285579cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlssonstatic RecordDecl * 285679cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders CarlssonCreateRecordDecl(ASTContext &Ctx, RecordDecl::TagKind TK, DeclContext *DC, 285779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson SourceLocation L, IdentifierInfo *Id) { 285879cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson if (Ctx.getLangOptions().CPlusPlus) 285979cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson return CXXRecordDecl::Create(Ctx, TK, DC, L, Id); 286079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson else 286179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson return RecordDecl::Create(Ctx, TK, DC, L, Id); 286279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson} 286379cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson 28641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// getCFConstantStringType - Return the type used for constant CFStrings. 286571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 286671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 28671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CFConstantStringTypeDecl = 286879cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 286979cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("NSConstantString")); 287079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson 2871f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 28721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 287371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 28740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[0] = getPointerType(IntTy.withConst()); 2875f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2876f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 287771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 28780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[2] = getPointerType(CharTy.withConst()); 287971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 28801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[3] = LongTy; 28811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 288244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 288344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 28841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 288544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 2886a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 28871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 28884afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 288917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 289044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 289144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 289244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 289371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 28941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 289571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 28968467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2897b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2898319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 28996217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2900319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2901319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2902319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2903319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 29041eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getObjCFastEnumerationStateType() { 2905bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 290644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 290779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 290879cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__objcFastEnumerationState")); 29091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2910bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2911bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2912de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff getPointerType(ObjCIdTypedefType), 2913bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2914bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2915bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2916bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 29171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 291844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 29191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, 29201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCFastEnumerationStateTypeDecl, 29211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation(), 0, 2922a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 29231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 29244afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 292517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 292644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 29271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 292844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2929bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 29301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2931bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2932bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2933bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2934adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike StumpQualType ASTContext::getBlockDescriptorType() { 2935adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump if (BlockDescriptorType) 2936adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 2937adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2938adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 2939adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Needs the FlagAppleBlock bit. 294079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 294179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__block_descriptor")); 2942adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2943adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 2944adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2945adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2946adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2947adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2948adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 2949adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "reserved", 2950083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size" 2951adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2952adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2953adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 2; ++i) { 2954adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldDecl *Field = FieldDecl::Create(*this, 2955adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T, 2956adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump SourceLocation(), 2957adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 2958a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 2959adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*BitWidth=*/0, 2960adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*Mutable=*/false); 2961adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 2962adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 2963adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2964adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->completeDefinition(*this); 2965adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2966adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = T; 2967adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2968adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 2969adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 2970adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2971adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stumpvoid ASTContext::setBlockDescriptorType(QualType T) { 2972adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const RecordType *Rec = T->getAs<RecordType>(); 2973adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump assert(Rec && "Invalid BlockDescriptorType"); 2974adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = Rec->getDecl(); 2975adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 2976adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2977083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike StumpQualType ASTContext::getBlockDescriptorExtendedType() { 2978083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump if (BlockDescriptorExtendedType) 2979083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 2980083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2981083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump RecordDecl *T; 2982083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump // FIXME: Needs the FlagAppleBlock bit. 298379cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 298479cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__block_descriptor_withcopydispose")); 2985083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2986083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump QualType FieldTypes[] = { 2987083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 2988083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 2989083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy), 2990083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy) 2991083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 2992083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2993083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const char *FieldNames[] = { 2994083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "reserved", 2995083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size", 2996083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "CopyFuncPtr", 2997083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "DestroyFuncPtr" 2998083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 2999083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3000083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump for (size_t i = 0; i < 4; ++i) { 3001083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump FieldDecl *Field = FieldDecl::Create(*this, 3002083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T, 3003083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump SourceLocation(), 3004083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump &Idents.get(FieldNames[i]), 3005a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3006083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*BitWidth=*/0, 3007083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*Mutable=*/false); 3008083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T->addDecl(Field); 3009083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump } 3010083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3011083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T->completeDefinition(*this); 3012083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3013083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = T; 3014083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3015083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 3016083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 3017083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3018083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stumpvoid ASTContext::setBlockDescriptorExtendedType(QualType T) { 3019083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const RecordType *Rec = T->getAs<RecordType>(); 3020083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump assert(Rec && "Invalid BlockDescriptorType"); 3021083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = Rec->getDecl(); 3022083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 3023083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3024af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stumpbool ASTContext::BlockRequiresCopying(QualType Ty) { 3025af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isBlockPointerType()) 3026af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3027af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (isObjCNSObjectType(Ty)) 3028af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3029af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isObjCObjectPointerType()) 3030af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3031af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return false; 3032af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump} 3033af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3034af7b44d847d3e44c43346d508b2e55a6254b6e9dMike StumpQualType ASTContext::BuildByRefType(const char *DeclName, QualType Ty) { 3035af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // type = struct __Block_byref_1_X { 3036ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // void *__isa; 3037af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // struct __Block_byref_1_X *__forwarding; 3038ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __flags; 3039ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __size; 304038e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__copy_helper; // as needed 304138e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__destroy_help // as needed 3042af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // int X; 3043ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // } * 3044ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3045af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump bool HasCopyAndDispose = BlockRequiresCopying(Ty); 3046af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3047af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // FIXME: Move up 30484d0d85c3370f2726c74ba0ece0a5e712830a1d82Fariborz Jahanian static unsigned int UniqueBlockByRefTypeID = 0; 3049f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 3050f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__Block_byref_" << 3051f5942a44880be26878592eb052b737579349411eBenjamin Kramer ++UniqueBlockByRefTypeID << '_' << DeclName; 3052af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump RecordDecl *T; 305379cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 305479cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get(Name.str())); 3055af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->startDefinition(); 3056af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType Int32Ty = IntTy; 3057af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump assert(getIntWidth(IntTy) == 32 && "non-32bit int not supported"); 3058af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType FieldTypes[] = { 3059af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3060af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(getTagDeclType(T)), 3061af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 3062af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 3063af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3064af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3065af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Ty 3066af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 3067af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3068af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump const char *FieldNames[] = { 3069af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__isa", 3070af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__forwarding", 3071af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__flags", 3072af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__size", 3073af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__copy_helper", 3074af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__destroy_helper", 3075af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump DeclName, 3076af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 3077af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3078af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump for (size_t i = 0; i < 7; ++i) { 3079af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (!HasCopyAndDispose && i >=4 && i <= 5) 3080af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump continue; 3081af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3082af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump &Idents.get(FieldNames[i]), 3083a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3084af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump /*BitWidth=*/0, /*Mutable=*/false); 3085af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->addDecl(Field); 3086af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump } 3087af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3088af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->completeDefinition(*this); 3089af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3090af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return getPointerType(getTagDeclType(T)); 3091ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump} 3092ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3093ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3094ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike StumpQualType ASTContext::getBlockParmType( 3095083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump bool BlockHasCopyDispose, 3096ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump llvm::SmallVector<const Expr *, 8> &BlockDeclRefDecls) { 3097adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Move up 30984d0d85c3370f2726c74ba0ece0a5e712830a1d82Fariborz Jahanian static unsigned int UniqueBlockParmTypeID = 0; 3099f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 3100f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__block_literal_" 3101f5942a44880be26878592eb052b737579349411eBenjamin Kramer << ++UniqueBlockParmTypeID; 3102adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 310379cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 310479cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get(Name.str())); 3105adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 3106adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 3107adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 3108adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 3109adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 3110083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump (BlockHasCopyDispose ? 3111083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorExtendedType()) : 3112083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorType())) 3113adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3114adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3115adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 3116adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__isa", 3117adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__flags", 3118adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__reserved", 3119adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__FuncPtr", 3120adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__descriptor" 3121adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3122adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3123adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 5; ++i) { 3124ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3125adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 3126a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3127ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 3128ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump T->addDecl(Field); 3129ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3130ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3131ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump for (size_t i = 0; i < BlockDeclRefDecls.size(); ++i) { 3132ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const Expr *E = BlockDeclRefDecls[i]; 3133ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(E); 3134ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump clang::IdentifierInfo *Name = 0; 3135ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE) { 3136ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const ValueDecl *D = BDRE->getDecl(); 3137ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump Name = &Idents.get(D->getName()); 3138ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3139ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump QualType FieldType = E->getType(); 3140ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3141ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE && BDRE->isByRef()) 3142af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType = BuildByRefType(BDRE->getDecl()->getNameAsCString(), 3143af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType); 3144ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3145ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3146a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Name, FieldType, /*TInfo=*/0, 3147ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 3148adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 3149adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 3150adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3151adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->completeDefinition(*this); 3152ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3153ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump return getPointerType(getTagDeclType(T)); 3154adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3155adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3156319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 31576217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 3158319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 3159319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 3160319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 3161319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3162e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 3163e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 31642d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 3165e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 3166bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 3167bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 31681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 316985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 317085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 317185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 3172a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 317333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 3174aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen DyckCharUnits ASTContext::getObjCEncodingTypeSize(QualType type) { 3175199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits sz = getTypeSizeInChars(type); 31761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 317733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 3178199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck if (sz.isPositive() && type->isIntegralType()) 3179199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck sz = std::max(sz, getTypeSizeInChars(IntTy)); 318033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 318133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 3182199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck sz = getTypeSizeInChars(VoidPtrTy); 3183aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck return sz; 3184199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck} 3185199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck 3186199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyckstatic inline 3187199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyckstd::string charUnitsToString(const CharUnits &CU) { 3188199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return llvm::itostr(CU.getQuantity()); 318933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 319033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 31915e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall/// getObjCEncodingForBlockDecl - Return the encoded type for this method 31925e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall/// declaration. 31935e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnallvoid ASTContext::getObjCEncodingForBlock(const BlockExpr *Expr, 31945e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall std::string& S) { 31955e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall const BlockDecl *Decl = Expr->getBlockDecl(); 31965e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType BlockTy = 31975e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall Expr->getType()->getAs<BlockPointerType>()->getPointeeType(); 31985e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Encode result type. 31995e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall getObjCEncodingForType(cast<FunctionType>(BlockTy)->getResultType(), S); 32005e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Compute size of all parameters. 32015e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Start with computing size of a pointer in number of bytes. 32025e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // FIXME: There might(should) be a better way of doing this computation! 32035e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall SourceLocation Loc; 3204199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); 3205199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits ParmOffset = PtrSize; 32065e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 32075e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall E = Decl->param_end(); PI != E; ++PI) { 32085e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType PType = (*PI)->getType(); 3209aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck CharUnits sz = getObjCEncodingTypeSize(PType); 3210199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck assert (sz.isPositive() && "BlockExpr - Incomplete param type"); 32115e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset += sz; 32125e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } 32135e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Size of the argument frame 3214199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 32155e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Block pointer and offset. 32165e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall S += "@?0"; 32175e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset = PtrSize; 32185e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall 32195e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Argument types. 32205e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset = PtrSize; 32215e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall for (BlockDecl::param_const_iterator PI = Decl->param_begin(), E = 32225e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall Decl->param_end(); PI != E; ++PI) { 32235e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmVarDecl *PVDecl = *PI; 32245e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType PType = PVDecl->getOriginalType(); 32255e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall if (const ArrayType *AT = 32265e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 32275e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Use array's original type only if it has known number of 32285e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // elements. 32295e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall if (!isa<ConstantArrayType>(AT)) 32305e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall PType = PVDecl->getType(); 32315e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } else if (PType->isFunctionType()) 32325e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall PType = PVDecl->getType(); 32335e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall getObjCEncodingForType(PType, S); 3234199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 3235aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck ParmOffset += getObjCEncodingTypeSize(PType); 32365e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } 32375e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall} 32385e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall 3239a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 324033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 32411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 3242e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3243c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3244ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 3245a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 324633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 32470d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 324833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 324933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 325033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 325133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 3252199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); 325333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 325433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 3255199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits ParmOffset = 2 * PtrSize; 325689951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 325789951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 325889951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 3259aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck CharUnits sz = getObjCEncodingTypeSize(PType); 3260199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck assert (sz.isPositive() && 3261199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck "getObjCEncodingForMethodDecl - Incomplete param type"); 326233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 326333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 3264199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 326533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 3266199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(PtrSize); 32671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 326833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 326933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 327089951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 327189951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 327289951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 32731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType PType = PVDecl->getOriginalType(); 32744306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 3275ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 3276ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 3277ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 3278bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 3279ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3280ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 3281ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3282ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 328333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 32844306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 32850d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 3286199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 3287aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck ParmOffset += getObjCEncodingTypeSize(PType); 328833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 328933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 329033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 3291c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 329283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 3293c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 3294c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 32951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Property attributes are stored as a comma-delimited C string. The simple 32961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// attributes readonly and bycopy are encoded as single characters. The 32971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parametrized attributes, getter=name, setter=name, and ivar=name, are 32981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// encoded as single characters, followed by an identifier. Property types 32991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// are also encoded as a parametrized attribute. The characters used to encode 330083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 330183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 330283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 330383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 330483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 330583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 330683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 330783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 330883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 330983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 331083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 331183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 331283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 331383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 331483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 331583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 33161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 3317c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 3318e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3319c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 3320c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 3321c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 3322c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3323c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 3324c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 33251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCCategoryImplDecl *CID = 3326c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 3327c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 332817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 3329653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3330c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3331c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3332c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3333c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3334c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3335c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3336c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3337c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3338c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3339c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 334061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 3341c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 334217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 3343653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3344c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3345c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3346c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3347c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3348c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3349c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3350c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3351c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 33521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3353c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3354c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3355c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3356c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3357c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 3358c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3359c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 3360090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 3361090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 33621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 3363090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 3364090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 3365c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3366c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 3367c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 3368c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3369c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 3370c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 3371c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 33721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case ObjCPropertyDecl::Retain: S += ",&"; break; 3373c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3374c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3375c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3376c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 3377c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 3378c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 3379c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 3380c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3381090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 3382090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 33831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3384c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 3385c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 3386077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 3387c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3388c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3389c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 3390c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 3391077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 3392c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3393c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3394c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 3395c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 3396c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 339739f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 3398c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3399c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3400c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 3401c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 3402c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3403a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 34041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Another legacy compatibility encoding: 32-bit longs are encoded as 34051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 'l' or 'L' , but not always. For typedefs, we need to use 3406a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 3407a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 3408a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 34098e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(PointeeTy.getTypePtr())) { 3410183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = PointeeTy->getAs<BuiltinType>()) { 3411c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 3412c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3413a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 34141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else 3415c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 3416c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3417a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 3418a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3419a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3420a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 3421a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 34227d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 3423153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 342482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 342582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 342682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 342782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 34281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(T, S, true, true, Field, 34295b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 343082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 343182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 34321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void EncodeBitField(const ASTContext *Context, std::string& S, 3433153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 34348b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 34358b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 34368b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 34379a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 34388b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 34398b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 34408b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 34418b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 344201eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar// FIXME: Use SmallString for accumulating string. 344382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 344482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 344582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 3446153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 3447090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 34486ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 3449183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = T->getAs<BuiltinType>()) { 3450ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD && FD->isBitField()) 3451ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return EncodeBitField(this, S, FD); 3452ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner char encoding; 3453ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner switch (BT->getKind()) { 34541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: assert(0 && "Unhandled builtin type kind"); 3455ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 3456ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 3457ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_U: 3458ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 3459ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 3460ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 34611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::ULong: 34621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 34631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 346472696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 3465ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 3466ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 3467ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_S: 3468ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 3469ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Short: encoding = 's'; break; 3470ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 34711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::Long: 34721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 34731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 3474ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner break; 3475ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 3476ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 3477ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 3478ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 3479ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 348043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 34811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3482ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += encoding; 3483ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3484ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 34851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3486183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) { 3487c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 34881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 3489c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 3490ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3491ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 349260bce3ef20a4c9684e3825cdd739fefb9810327dFariborz Jahanian 34936217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const PointerType *PT = T->getAs<PointerType>()) { 34948d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian if (PT->isObjCSelType()) { 34958d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian S += ':'; 34968d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian return; 34978d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian } 349885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 34998d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian 3500a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 3501a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 3502a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 3503a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 35041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Also, do not emit the 'r' for anything but the outermost type! 35058e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(T.getTypePtr())) { 3506a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 3507a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3508a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3509a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 35109fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (OutermostType) { 3511a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 35126217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek while (P->getAs<PointerType>()) 35136217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek P = P->getAs<PointerType>()->getPointeeType(); 3514a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 3515a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3516a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3517a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3518a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3519a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 3520a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 3521a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 3522a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 3523a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 3524a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 3525a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 3526a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 3527a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 3528a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3529a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 35301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 353185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 353285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 353385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 3534e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 353585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 353685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 353785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 35386217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek } else if (const RecordType *RTy = PointeeTy->getAs<RecordType>()) { 35399533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_class *" to "#". 35409533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { 35419533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '#'; 35429533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 35439533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 35449533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_object *" to "@". 35459533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { 35469533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '@'; 35479533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 35489533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 35499533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // fall through... 355085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 355185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 3552a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 3553a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 35541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 355543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 3556ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3557ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3559ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ArrayType *AT = 3560ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Ignore type qualifiers etc. 3561ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 3562559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 3563559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 3564559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 3565559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 35661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3567559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3568559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 3569559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 35701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3571559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 3572559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 3573559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 3574559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 3575559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 3576559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 3577559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 35781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3580559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3581559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 3582559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 3583ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3584ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3586183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (T->getAs<FunctionType>()) { 3587c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 3588ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3589ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35916217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *RTy = T->getAs<RecordType>()) { 359282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 3593d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 3594502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 3595502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 3596502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 3597502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 3598502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 3599502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 36000d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 36017d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 360217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 360317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 360444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 360543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 3606d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 360744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 3608d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 3609d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 36101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3611d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 361243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 36131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 361443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 3615d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 3616a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 3617a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 36181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(qt, S, false, true, 361943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 3620d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 36217d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 36226de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 3623d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 3624ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3625ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3627ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isEnumeralType()) { 36288b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 36298b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 36308b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 36318b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 3632ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3633ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3635ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isBlockPointerType()) { 363621a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 3637ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3638ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (const ObjCInterfaceType *OIT = T->getAs<ObjCInterfaceType>()) { 364143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 36420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ObjCInterfaceDecl *OI = OIT->getDecl(); 364343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 364443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 364543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 364643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 3647f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 364843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 3649f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 365043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 36511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 365243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 365343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 36541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 365543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 365643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 365743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 3658ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 365943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 36601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3661183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = T->getAs<ObjCObjectPointerType>()) { 366214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (OPT->isObjCIdType()) { 366314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '@'; 366414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3665ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 366727d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->isObjCClassType() || OPT->isObjCQualifiedClassType()) { 366827d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // FIXME: Consider if we need to output qualifiers for 'Class<p>'. 366927d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // Since this is a binary compatibility issue, need to consult with runtime 367027d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // folks. Fortunately, this is a *very* obsure construct. 367114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '#'; 367214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3673ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3675ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCQualifiedIdType()) { 36761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(getObjCIdType(), S, 367714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandPointedToStructures, 367814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandStructures, FD); 367914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (FD || EncodingProperty) { 368014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Note that we do extended encoding of protocol qualifer list 368114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Only when doing ivar or property encoding. 368214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 368367ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 368467ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 368514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '<'; 368614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += (*I)->getNameAsString(); 368714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '>'; 368814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 368914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 369014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 369114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3692ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3694ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner QualType PointeeTy = OPT->getPointeeType(); 3695ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (!EncodingProperty && 3696ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner isa<TypedefType>(PointeeTy.getTypePtr())) { 3697ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Another historical/compatibility reason. 36981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We encode the underlying type which comes out as 3699ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // {...}; 3700ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '^'; 37011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, 37021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump false, ExpandPointedToStructures, 3703ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner NULL); 370414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 370514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 3706ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3707ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '@'; 370827d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->getInterfaceDecl() && (FD || EncodingProperty)) { 3709ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 371027d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff S += OPT->getInterfaceDecl()->getIdentifier()->getName(); 371167ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 371267ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 3713ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '<'; 3714ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += (*I)->getNameAsString(); 3715ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '>'; 37161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3717ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 3718ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3719ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3720ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3722ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner assert(0 && "@encode for type not implemented!"); 372385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 372485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 37251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 3726ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 3727ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 3728ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 3729ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 3730ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 3731ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 3732ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 3733ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 3734ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 3735ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 3736ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 3737ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 3738ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 3739ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 3740ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 3741ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setBuiltinVaListType(QualType T) { 3742b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 37431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3744b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 3745b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 3746b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3747ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCIdType(QualType T) { 3748de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = T; 37497e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 37507e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 3751ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCSelType(QualType T) { 375213dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian ObjCSelTypedefType = T; 3753b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 3754b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3755ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCProtoType(QualType QT) { 3756a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 3757390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 3758390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 3759ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCClassType(QualType T) { 3760de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = T; 37618baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 37628baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3763a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 37641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(ObjCConstantStringType.isNull() && 37652198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 37661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3767a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 37682198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 37692198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 37700bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall/// \brief Retrieve the template name that corresponds to a non-empty 37710bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall/// lookup. 3772eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCallTemplateName ASTContext::getOverloadedTemplateName(UnresolvedSetIterator Begin, 3773eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCall UnresolvedSetIterator End) { 37740bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall unsigned size = End - Begin; 37750bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(size > 1 && "set is not overloaded!"); 37767532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 37770bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall void *memory = Allocate(sizeof(OverloadedTemplateStorage) + 37780bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall size * sizeof(FunctionTemplateDecl*)); 37790bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall OverloadedTemplateStorage *OT = new(memory) OverloadedTemplateStorage(size); 37800bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall 37810bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl **Storage = OT->getStorage(); 3782eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCall for (UnresolvedSetIterator I = Begin; I != End; ++I) { 37830bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl *D = *I; 37840bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(isa<FunctionTemplateDecl>(D) || 37850bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall (isa<UsingShadowDecl>(D) && 37860bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))); 37870bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall *Storage++ = D; 37887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 37897532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 37900bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall return TemplateName(OT); 37917532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 37927532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3793d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// \brief Retrieve the template name that represents a qualified 3794d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// template name such as \c std::vector. 37951eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 3796d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor bool TemplateKeyword, 37970bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall TemplateDecl *Template) { 3798d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor llvm::FoldingSetNodeID ID; 3799d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 38001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3801d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor void *InsertPos = 0; 3802d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName *QTN = 38030bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3804d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor if (!QTN) { 3805d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 3806d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 3807d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor } 38081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3809d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor return TemplateName(QTN); 3810d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor} 3811d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 38127532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 38137532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 38141eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 38157532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 38161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((!NNS || NNS->isDependent()) && 38173b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor "Nested name specifier must be dependent"); 38187532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38197532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 38207532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 38217532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38227532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 38237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 38247532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 38257532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38267532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 38277532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 38287532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38297532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 38307532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 38317532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 38327532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 38337532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 38347532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 38357532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 38367532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38377532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 38387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 38397532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 38407532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3841ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Retrieve the template name that represents a dependent 3842ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// template name such as \c MetaFun::template operator+. 3843ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorTemplateName 3844ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 3845ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor OverloadedOperatorKind Operator) { 3846ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor assert((!NNS || NNS->isDependent()) && 3847ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor "Nested name specifier must be dependent"); 3848ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3849ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor llvm::FoldingSetNodeID ID; 3850ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateName::Profile(ID, NNS, Operator); 3851ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3852ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor void *InsertPos = 0; 3853ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateName *QTN = 3854ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3855ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3856ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (QTN) 3857ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 3858ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3859ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 3860ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (CanonNNS == NNS) { 3861ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator); 3862ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 3863ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Operator); 3864ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator, Canon); 3865ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 3866ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3867ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 3868ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 3869ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor} 3870ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3871b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 3872d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 3873d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 3874e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallCanQualType ASTContext::getFromTargetType(unsigned Type) const { 3875b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 3876e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall case TargetInfo::NoInt: return CanQualType(); 3877b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 3878b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 3879b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 3880b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 3881b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 3882b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 3883b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 3884b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 3885b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 3886b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 3887b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 3888e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall return CanQualType(); 3889b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 3890b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3891b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3892b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 3893b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3894b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3895fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 3896fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 3897fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 3898f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff/// FIXME: Move to Type. 3899fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 3900fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 3901fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 3902fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 390340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 3904fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 3905fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 39061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return false; 3907fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 3908fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 39094fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 39104fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 39114fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 39120953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualifiers::GC ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 39130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttrs = Qualifiers::GCNone; 39144fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 39154fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 3916b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 39174fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 39181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // (or pointers to them) be treated as though they were declared 3919a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 39200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GCAttrs == Qualifiers::GCNone) { 392175212ee91313bc1b6dd826d9b173541bc4016539Fariborz Jahanian if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) 39220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttrs = Qualifiers::Strong; 3923a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 39246217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek return getObjCGCAttrKind(Ty->getAs<PointerType>()->getPointeeType()); 3925a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 3926c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 3927c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 3928f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 39290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qualifiers::GCNone; 39304fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 3931b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 39324fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 39334fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 39346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 39356ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 39366ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 3937770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 39381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// areCompatVectorTypes - Return true if the two specified vector types are 39396ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 39406ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 39416ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 3942467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified()); 39436ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 394461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 39456ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 39466ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 39474084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 39484084c306635b70f37029dca938444e6013f08684Steve Naroff// ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. 39494084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 39504084c306635b70f37029dca938444e6013f08684Steve Naroff 39514084c306635b70f37029dca938444e6013f08684Steve Naroff/// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the 39524084c306635b70f37029dca938444e6013f08684Steve Naroff/// inheritance hierarchy of 'rProto'. 39530fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanianbool ASTContext::ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, 39540fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian ObjCProtocolDecl *rProto) { 39554084c306635b70f37029dca938444e6013f08684Steve Naroff if (lProto == rProto) 395614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return true; 39574084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCProtocolDecl::protocol_iterator PI = rProto->protocol_begin(), 39584084c306635b70f37029dca938444e6013f08684Steve Naroff E = rProto->protocol_end(); PI != E; ++PI) 39594084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 39604084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 39614084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 39624084c306635b70f37029dca938444e6013f08684Steve Naroff} 396314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 39644084c306635b70f37029dca938444e6013f08684Steve Naroff/// QualifiedIdConformsQualifiedId - compare id<p,...> with id<p1,...> 39654084c306635b70f37029dca938444e6013f08684Steve Naroff/// return true if lhs's protocols conform to rhs's protocol; false 39664084c306635b70f37029dca938444e6013f08684Steve Naroff/// otherwise. 39674084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::QualifiedIdConformsQualifiedId(QualType lhs, QualType rhs) { 39684084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isObjCQualifiedIdType() && rhs->isObjCQualifiedIdType()) 39694084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(lhs, rhs, false); 39704084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 39714084c306635b70f37029dca938444e6013f08684Steve Naroff} 39724084c306635b70f37029dca938444e6013f08684Steve Naroff 39734084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an 39744084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIDType. 39754084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::ObjCQualifiedIdTypesAreCompatible(QualType lhs, QualType rhs, 39764084c306635b70f37029dca938444e6013f08684Steve Naroff bool compare) { 39774084c306635b70f37029dca938444e6013f08684Steve Naroff // Allow id<P..> and an 'id' or void* type in all cases. 39781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isVoidPointerType() || 39794084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->isObjCIdType() || lhs->isObjCClassType()) 39804084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 39811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else if (rhs->isVoidPointerType() || 39824084c306635b70f37029dca938444e6013f08684Steve Naroff rhs->isObjCIdType() || rhs->isObjCClassType()) 39834084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 39844084c306635b70f37029dca938444e6013f08684Steve Naroff 39854084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsQID = lhs->getAsObjCQualifiedIdType()) { 3986183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *rhsOPT = rhs->getAs<ObjCObjectPointerType>(); 39871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39884084c306635b70f37029dca938444e6013f08684Steve Naroff if (!rhsOPT) return false; 39891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39904084c306635b70f37029dca938444e6013f08684Steve Naroff if (rhsOPT->qual_empty()) { 39911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a unqualified interface pointer "NSString*", 39924084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 39934084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 39944084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 39954084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 39964084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 39974084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 39984084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 39990fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (!rhsID->ClassImplementsProtocol(*I, true)) 40004084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40014084c306635b70f37029dca938444e6013f08684Steve Naroff } 40024084c306635b70f37029dca938444e6013f08684Steve Naroff } 40034084c306635b70f37029dca938444e6013f08684Steve Naroff // If there are no qualifiers and no interface, we have an 'id'. 40044084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40054084c306635b70f37029dca938444e6013f08684Steve Naroff } 40061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 40074084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 40084084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 40094084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 40104084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 4011de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 4012de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // when comparing an id<P> on lhs with a static type on rhs, 4013de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // see if static class implements all of id's protocols, directly or 4014de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // through its super class and categories. 40154084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsOPT->qual_begin(), 40164084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsOPT->qual_end(); J != E; ++J) { 40174084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 40184084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 40194084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 40204084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 40218f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 40228f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 4023de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 40241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a qualified interface pointer "NSString<P>*", 40254084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 40264084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 40274084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 40284084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 40294084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 40304084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 40314084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 40320fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (rhsID->ClassImplementsProtocol(*I, true)) { 40334084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 40344084c306635b70f37029dca938444e6013f08684Steve Naroff break; 40354084c306635b70f37029dca938444e6013f08684Steve Naroff } 40364084c306635b70f37029dca938444e6013f08684Steve Naroff } 40374084c306635b70f37029dca938444e6013f08684Steve Naroff } 40384084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 4039de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return false; 4040de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 40411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4042de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return true; 4043de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 40441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40454084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsQID = rhs->getAsObjCQualifiedIdType(); 40464084c306635b70f37029dca938444e6013f08684Steve Naroff assert(rhsQID && "One of the LHS/RHS should be id<x>"); 40474084c306635b70f37029dca938444e6013f08684Steve Naroff 40481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCObjectPointerType *lhsOPT = 40494084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->getAsObjCInterfacePointerType()) { 40504084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhsOPT->qual_empty()) { 40514084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 40524084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *lhsID = lhsOPT->getInterfaceDecl()) { 40534084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = rhsQID->qual_begin(), 40544084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); I != E; ++I) { 40554084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 40564084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 40574084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 40580fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (lhsID->ClassImplementsProtocol(*I, true)) { 40594084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 40604084c306635b70f37029dca938444e6013f08684Steve Naroff break; 40614084c306635b70f37029dca938444e6013f08684Steve Naroff } 40624084c306635b70f37029dca938444e6013f08684Steve Naroff } 40634084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 40644084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40654084c306635b70f37029dca938444e6013f08684Steve Naroff } 40664084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40674084c306635b70f37029dca938444e6013f08684Steve Naroff } 40681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 40694084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsOPT->qual_begin(), 40704084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsOPT->qual_end(); I != E; ++I) { 40714084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 40724084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 40734084c306635b70f37029dca938444e6013f08684Steve Naroff 40744084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 40754084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 40764084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 40774084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsQID->qual_begin(), 40784084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); J != E; ++J) { 40794084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 40804084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 40814084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 40824084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 40834084c306635b70f37029dca938444e6013f08684Steve Naroff break; 40844084c306635b70f37029dca938444e6013f08684Steve Naroff } 40854084c306635b70f37029dca938444e6013f08684Steve Naroff } 40864084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 40874084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40884084c306635b70f37029dca938444e6013f08684Steve Naroff } 40894084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40904084c306635b70f37029dca938444e6013f08684Steve Naroff } 40914084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40924084c306635b70f37029dca938444e6013f08684Steve Naroff} 40934084c306635b70f37029dca938444e6013f08684Steve Naroff 40944084c306635b70f37029dca938444e6013f08684Steve Naroff/// canAssignObjCInterfaces - Return true if the two interface types are 40954084c306635b70f37029dca938444e6013f08684Steve Naroff/// compatible for assignment from RHS to LHS. This handles validation of any 40964084c306635b70f37029dca938444e6013f08684Steve Naroff/// protocol qualifiers on the LHS or RHS. 40974084c306635b70f37029dca938444e6013f08684Steve Naroff/// 40984084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 40994084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *RHSOPT) { 41004084c306635b70f37029dca938444e6013f08684Steve Naroff // If either type represents the built-in 'id' or 'Class' types, return true. 41014084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCBuiltinType() || RHSOPT->isObjCBuiltinType()) 41024084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 41034084c306635b70f37029dca938444e6013f08684Steve Naroff 41044084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 41051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 41061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType(RHSOPT,0), 41074084c306635b70f37029dca938444e6013f08684Steve Naroff false); 41084084c306635b70f37029dca938444e6013f08684Steve Naroff 41094084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 41104084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 41114084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHS && RHS) // We have 2 user-defined types. 41124084c306635b70f37029dca938444e6013f08684Steve Naroff return canAssignObjCInterfaces(LHS, RHS); 41131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41144084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 411514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 411614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4117e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// getIntersectionOfProtocols - This routine finds the intersection of set 4118e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// of protocols inherited from two distinct objective-c pointer objects. 4119e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// It is used to build composite qualifier list of the composite type of 4120e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// the conditional expression involving two objective-c pointer objects. 4121e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianstatic 4122e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid getIntersectionOfProtocols(ASTContext &Context, 4123e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4124e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *RHSOPT, 4125e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVectorImpl<ObjCProtocolDecl *> &IntersectionOfProtocols) { 4126e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4127e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4128e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4129e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4130e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> InheritedProtocolSet; 4131e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned LHSNumProtocols = LHS->getNumProtocols(); 4132e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (LHSNumProtocols > 0) 4133e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHS->qual_begin(), LHS->qual_end()); 4134e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 4135e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVector<ObjCProtocolDecl *, 8> LHSInheritedProtocols; 4136e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Context.CollectInheritedProtocols(LHS->getDecl(), LHSInheritedProtocols); 4137e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHSInheritedProtocols.begin(), 4138e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSInheritedProtocols.end()); 4139e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4140e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4141e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned RHSNumProtocols = RHS->getNumProtocols(); 4142e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (RHSNumProtocols > 0) { 4143e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl **RHSProtocols = (ObjCProtocolDecl **)RHS->qual_begin(); 4144e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (unsigned i = 0; i < RHSNumProtocols; ++i) 4145e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (InheritedProtocolSet.count(RHSProtocols[i])) 4146e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.push_back(RHSProtocols[i]); 4147e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4148e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 4149e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVector<ObjCProtocolDecl *, 8> RHSInheritedProtocols; 4150e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Context.CollectInheritedProtocols(RHS->getDecl(), RHSInheritedProtocols); 4151e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian // FIXME. This may cause duplication of protocols in the list, but should 4152e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian // be harmless. 4153e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (unsigned i = 0, len = RHSInheritedProtocols.size(); i < len; ++i) 4154e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (InheritedProtocolSet.count(RHSInheritedProtocols[i])) 4155e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.push_back(RHSInheritedProtocols[i]); 4156e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4157e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 4158e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4159db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// areCommonBaseCompatible - Returns common base class of the two classes if 4160db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// one found. Note that this is O'2 algorithm. But it will be called as the 4161db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// last type comparison in a ?-exp of ObjC pointer types before a 4162db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// warning is issued. So, its invokation is extremely rare. 4163db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz JahanianQualType ASTContext::areCommonBaseCompatible( 4164db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4165db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCObjectPointerType *RHSOPT) { 4166db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4167db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4168db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian if (!LHS || !RHS) 4169db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4170db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4171db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian while (const ObjCInterfaceDecl *LHSIDecl = LHS->getDecl()->getSuperClass()) { 4172db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian QualType LHSTy = getObjCInterfaceType(LHSIDecl); 4173db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian LHS = LHSTy->getAs<ObjCInterfaceType>(); 4174e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (canAssignObjCInterfaces(LHS, RHS)) { 4175e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVector<ObjCProtocolDecl *, 8> IntersectionOfProtocols; 4176e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian getIntersectionOfProtocols(*this, 4177e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSOPT, RHSOPT, IntersectionOfProtocols); 4178e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (IntersectionOfProtocols.empty()) 4179e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSTy = getObjCObjectPointerType(LHSTy); 4180e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else 4181e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSTy = getObjCObjectPointerType(LHSTy, &IntersectionOfProtocols[0], 4182e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.size()); 4183e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return LHSTy; 4184e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4185db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian } 4186db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4187db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4188db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian} 4189db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 41903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 41913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 41926ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 41936ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 41946ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 41956ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 41961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41976ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 41986ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 4199c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (LHS->getNumProtocols() == 0) 42006ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 42011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42026ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 42036ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 4204c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (RHS->getNumProtocols() == 0) 42056ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 42061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4207c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator LHSPI = LHS->qual_begin(), 4208c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff LHSPE = LHS->qual_end(); 420991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 421091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 421191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 421291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 421391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 4214c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator RHSPI = RHS->qual_begin(), 42154084c306635b70f37029dca938444e6013f08684Steve Naroff RHSPE = RHS->qual_end(); 42168f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff RHSPI != RHSPE; RHSPI++) { 42178f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 421891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 42198f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 42208f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 422191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 422291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 422391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 422491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 422591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 422691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 422791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 42286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 42296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 4230389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 4231389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 4232183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *LHSOPT = LHS->getAs<ObjCObjectPointerType>(); 4233183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *RHSOPT = RHS->getAs<ObjCObjectPointerType>(); 42341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 423514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (!LHSOPT || !RHSOPT) 4236389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 423714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 423814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 423914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff canAssignObjCInterfaces(RHSOPT, LHSOPT); 4240389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 4241389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 42421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 4243ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 42441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C99 6.2.7p1: Two types have compatible types if their types are the 4245ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 42463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 42473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 42483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 42493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4250ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregorstatic bool isSameCallingConvention(CallingConv lcc, CallingConv rcc) { 4251ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return (getCanonicalCallingConv(lcc) == getCanonicalCallingConv(rcc)); 4252ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 4253ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 42543d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 4255183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *lbase = lhs->getAs<FunctionType>(); 4256183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *rbase = rhs->getAs<FunctionType>(); 425772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 425872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 42593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 42603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 42613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 42623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 42633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 42643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 426561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 426661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 426761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 426861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 42696dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump // FIXME: double check this 42702455636163fdd18581d7fdae816433f886d88213Mike Stump bool NoReturn = lbase->getNoReturnAttr() || rbase->getNoReturnAttr(); 42712455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != lbase->getNoReturnAttr()) 42722455636163fdd18581d7fdae816433f886d88213Mike Stump allLTypes = false; 42732455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != rbase->getNoReturnAttr()) 42742455636163fdd18581d7fdae816433f886d88213Mike Stump allRTypes = false; 4275ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv lcc = lbase->getCallConv(); 4276ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv rcc = rbase->getCallConv(); 4277ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor // Compatible functions must have compatible calling conventions 4278ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor if (!isSameCallingConvention(lcc, rcc)) 4279ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return QualType(); 42801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 4282465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 4283465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 42843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 42853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 42863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 42873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 42883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 42893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 42903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 42913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 42923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 42933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 42943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 42957fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 42967fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 42977fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 42983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 42993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 43003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 43013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 43023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 43033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 43043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 43053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 430661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 430761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 430861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 430961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 43103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 43113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 43123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 43133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 43142455636163fdd18581d7fdae816433f886d88213Mike Stump lproto->isVariadic(), lproto->getTypeQuals(), 4315ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor NoReturn, lcc); 43163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 43173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 43193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 43203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 432172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 43223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 4323465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 43243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 43253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 43263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 43273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 43283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 43293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 43303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 43313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 43323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 43333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 43343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 43353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 43363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 43373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 43393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 43403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 43412d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getNumArgs(), proto->isVariadic(), 4342ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor proto->getTypeQuals(), NoReturn, lcc); 43433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 43443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 43463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 4347ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return getFunctionNoProtoType(retType, NoReturn, lcc); 43483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 43493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43503d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 435143d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 435243d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 435343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 43547c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 43557c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 43563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 43573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 43587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 43597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 43606217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RT = LHS->getAs<ReferenceType>()) 4361c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 43626217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RT = RHS->getAs<ReferenceType>()) 4363c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 43643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 43663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 43673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4368f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 43693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 43703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 43713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the qualifiers are different, the types aren't compatible... mostly. 4373a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor Qualifiers LQuals = LHSCan.getLocalQualifiers(); 4374a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor Qualifiers RQuals = RHSCan.getLocalQualifiers(); 43750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals != RQuals) { 43760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If any of these qualifiers are different, we have a type 43770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // mismatch. 43780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || 43790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall LQuals.getAddressSpace() != RQuals.getAddressSpace()) 43800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 43810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 43820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Exactly one GC qualifier difference is allowed: __strong is 43830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // okay if the other type has no GC qualifier but is an Objective 43840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // C object pointer (i.e. implicitly strong by default). We fix 43850953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // this by pretending that the unqualified type was actually 43860953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // qualified __strong. 43870953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); 43880953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); 43890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements"); 43900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 43910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) 43920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 43930953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 43940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Strong && RHSCan->isObjCObjectPointerType()) { 43950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(LHS, getObjCGCQualType(RHS, Qualifiers::Strong)); 43960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 43970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_R == Qualifiers::Strong && LHSCan->isObjCObjectPointerType()) { 43980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(getObjCGCQualType(LHS, Qualifiers::Strong), RHS); 43990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 44003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 44010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 44020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 44030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Okay, qualifiers are equal. 44043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4405852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 4406852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 4407f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 44081adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 44091adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 44101adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 44111adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 44124c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 44134c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 4414a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 4415a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 4416a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 4417a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 44181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4419213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 4420213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 4421213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 44221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44234e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 44244e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 44251adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 44261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // a signed integer type, or an unsigned integer type. 4427842aef8d942a880eeb9535d40de31a86838264cbJohn McCall // Compatibility is based on the underlying type, not the promotion 4428842aef8d942a880eeb9535d40de31a86838264cbJohn McCall // type. 4429183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = LHS->getAs<EnumType>()) { 44303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 44313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 4432bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 4433183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = RHS->getAs<EnumType>()) { 44343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 44353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 4436bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 44371adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 44383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 4439ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 44403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44414a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 44421adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 444372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 444472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 444572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 444672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 444772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 444872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 444972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 445072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 44517c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 44527c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 445372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 445472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 445572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 445672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 445772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 445872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 445972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 446072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 446172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 446272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 446372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 44641adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 44653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 44663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 44676217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<PointerType>()->getPointeeType(); 44686217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<PointerType>()->getPointeeType(); 44693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 44703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 447107d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 447261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 447307d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 447461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 44753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 44763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 4477c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 4478c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 4479c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 44806217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<BlockPointerType>()->getPointeeType(); 44816217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<BlockPointerType>()->getPointeeType(); 4482c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 4483c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 4484c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 4485c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 4486c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 4487c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 4488c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 4489c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 44901adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 44913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 44923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 44933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 44943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 44953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 44963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 44983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 44993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 45003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 450161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 450261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 450361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 450461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 45053bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 45063bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 45073bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 45083bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 45093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 45103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 451161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 451261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 451361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 451461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 45153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 45163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 45173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 45183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 45193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 45203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 45213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 45223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 45233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 45243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 45253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 45263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 45273bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 45283bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 45297e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 45307e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 45313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 45321adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 45333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 453472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 453572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 45363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 45371adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 45383cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 45393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 454064cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 454164cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 454264cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 45433cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 45445a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 4545183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (areCompatVectorTypes(LHS->getAs<VectorType>(), RHS->getAs<VectorType>())) 45463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 454761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 454861490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 45495fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 45505a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 45515a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 4552183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* LHSIface = LHS->getAs<ObjCInterfaceType>(); 4553183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* RHSIface = RHS->getAs<ObjCInterfaceType>(); 45545fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 45555fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 45565fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 45575fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 45583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 455961490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 456014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff case Type::ObjCObjectPointer: { 4561183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (canAssignObjCInterfaces(LHS->getAs<ObjCObjectPointerType>(), 4562183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall RHS->getAs<ObjCObjectPointerType>())) 456314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return LHS; 456414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4565bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 456614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 45677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 45687532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 45697532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 4570ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 457172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 457272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 4573ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 45747192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 45755426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 4576ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 4577ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 457888054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 4579ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 4580632d772a78db7e2cd9b36f8a22aee49d44486fbfSebastian Redl if (T->isBooleanType()) 4581ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 4582842aef8d942a880eeb9535d40de31a86838264cbJohn McCall if (EnumType *ET = dyn_cast<EnumType>(T)) 458329a7f3342c3c6dd15d914c61ae22246c36d51ce7Eli Friedman T = ET->getDecl()->getIntegerType(); 4584f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 4585ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 4586ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4587ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 4588ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 4589ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 45906a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 45916a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // Turn <4 x signed int> -> <4 x unsigned int> 45926a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const VectorType *VTy = T->getAs<VectorType>()) 45936a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner return getVectorType(getCorrespondingUnsignedType(VTy->getElementType()), 45946a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner VTy->getNumElements()); 45956a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 45966a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // For enums, we return the unsigned version of the base type. 45976a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const EnumType *ETy = T->getAs<EnumType>()) 4598ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 45996a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 46006a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner const BuiltinType *BTy = T->getAs<BuiltinType>(); 46016a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner assert(BTy && "Unexpected signed integer type"); 4602ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 4603ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 4604ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 4605ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 4606ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 4607ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 4608ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 4609ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 4610ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 4611ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 4612ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 4613ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 46142df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 46152df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 4616ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 4617ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 4618ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 4619ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 4620ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4621ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 46222cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 46232cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 46242cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 462586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 462686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 462786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 462886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 462986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 463086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 463186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 463286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 46331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 463486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 463586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 463686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 463786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 463886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 46391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 464086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 464186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 464286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 464386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 46441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: Done = true; --Str; break; 464586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 464686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 464786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 464886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 464986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 465086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 465186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 465286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 465386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 465486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 465586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 465686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 465786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 465886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 465986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 466086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 466186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 466286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 46631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 466486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 466586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 466686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 466786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 466886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 466986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 467086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 467186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 467286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 467386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 467486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 467586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 467686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 467786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 467886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 467986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 468086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 468186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 468286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 468386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 468486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 468586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 468686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 468786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 468886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 468986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 469086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 469186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 469286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 469386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 469486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 469586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 469686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 469786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 469886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 469986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 470086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 470186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 470286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 470386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 470486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 470586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 470686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 470786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 470886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 470986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 471086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 471186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 471286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 471386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 471486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 471586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 471686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 471786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 471886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 471986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 472086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 472186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 472286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 472386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 472486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 472586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 472686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 472786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 472886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 472986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 473086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 473186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 473286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 473386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 473486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 473586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 473686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 473786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 473886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 473986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 474086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 474186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 474286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 474386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 474486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 474586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 474686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 47471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 474886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 47491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 475086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 475186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getVectorType(ElementType, NumElements); 475286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 475386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4754d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor case 'X': { 4755d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 4756d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor Type = Context.getComplexType(ElementType); 4757d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor break; 4758d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor } 47599a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'P': 4760c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor Type = Context.getFILEType(); 4761c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor if (Type.isNull()) { 4762f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_stdio; 476386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 476486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4765fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 47669a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'J': 4767f711c41dd9412a8182793259d355c4f6979ed5edMike Stump if (Signed) 4768782fa308a765aeac2acb39c4e697c937ec21185bMike Stump Type = Context.getsigjmp_bufType(); 4769f711c41dd9412a8182793259d355c4f6979ed5edMike Stump else 4770f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Type = Context.getjmp_bufType(); 4771f711c41dd9412a8182793259d355c4f6979ed5edMike Stump 4772fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump if (Type.isNull()) { 4773f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_setjmp; 4774fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump return QualType(); 4775fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump } 4776fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 4777782fa308a765aeac2acb39c4e697c937ec21185bMike Stump } 47781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 477986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 478086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 47811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 478286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 478386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 478486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 478586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 478686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 478786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getPointerType(Type); 478886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 478986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 479086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 479186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 479286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 479386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 47940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Type = Type.withConst(); 479586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 479686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 479786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 47981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 479986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 480086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 480186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 480286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 480386df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 480486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 480586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 48061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 480786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 48081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 480986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 481086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 481186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 481286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 481386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 481486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 481586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 481686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 481786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 481886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 481986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 482086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 48211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 482286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 482386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 482486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 482586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 482686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 482786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 482886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 482986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 483086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 483186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 483286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner TypeStr[0] == '.', 0); 483386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 4834a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4835a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType 4836a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanASTContext::UsualArithmeticConversionsType(QualType lhs, QualType rhs) { 4837a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Perform the usual unary conversions. We do this early so that 4838a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // integral promotions to "int" can allow us to exit early, in the 4839a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // lhs == rhs check. Also, for conversion purposes, we ignore any 4840a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // qualifiers. For example, "const float" and "float" are 4841a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // equivalent. 4842a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isPromotableIntegerType()) 4843a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getPromotedIntegerType(lhs); 4844a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4845a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = lhs.getUnqualifiedType(); 4846a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isPromotableIntegerType()) 4847a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getPromotedIntegerType(rhs); 4848a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4849a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = rhs.getUnqualifiedType(); 4850a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4851a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If both types are identical, no conversion is needed. 4852a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs == rhs) 4853a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 48541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4855a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If either side is a non-arithmetic type (e.g. a pointer), we are done. 4856a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The caller can deal with this (e.g. pointer + int). 4857a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (!lhs->isArithmeticType() || !rhs->isArithmeticType()) 4858a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 48591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 48601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // At this point, we have two different arithmetic types. 48611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4862a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle complex types first (C99 6.3.1.8p1). 4863a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexType() || rhs->isComplexType()) { 4864a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the complex type. 48651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (rhs->isIntegerType() || rhs->isComplexIntegerType()) { 4866a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 4867a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4868a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 48691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isIntegerType() || lhs->isComplexIntegerType()) { 4870a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 4871a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4872a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4873a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // This handles complex/complex, complex/float, or float/complex. 48741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // When both operands are complex, the shorter operand is converted to the 48751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type of the longer, and that is the type of the result. This corresponds 48761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // to what is done when combining two real floating-point operands. 48771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The fun begins when size promotion occur across type domains. 4878a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // From H&S 6.3.4: When one operand is complex and the other is a real 48791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // floating-point type, the less precise type is converted, within it's 4880a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // real or complex domain, to the precision of the other type. For example, 48811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // when combining a "long double" with a "double _Complex", the 4882a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // "double _Complex" is promoted to "long double _Complex". 4883a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 48841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 48851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (result > 0) { // The left side is bigger, convert rhs. 4886a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getFloatingTypeOfSizeWithinDomain(lhs, rhs); 48871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (result < 0) { // The right side is bigger, convert lhs. 4888a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getFloatingTypeOfSizeWithinDomain(rhs, lhs); 48891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 4890a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // At this point, lhs and rhs have the same rank/size. Now, make sure the 4891a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // domains match. This is a requirement for our implementation, C99 4892a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // does not require this promotion. 4893a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs != rhs) { // Domains don't match, we have complex/float mix. 4894a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType()) { // handle "double, _Complex double". 4895a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4896a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { // handle "_Complex double, double". 4897a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4898a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4899a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4900a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // The domain/size match exactly. 4901a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4902a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Now handle "real" floating types (i.e. float, double, long double). 4903a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType() || rhs->isRealFloatingType()) { 4904a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the real floating type. 4905a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isIntegerType()) { 4906a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the lhs floating point type. 4907a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4908a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4909a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isComplexIntegerType()) { 4910a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the complex floating point type. 4911a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(lhs); 4912a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4913a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isIntegerType()) { 4914a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the rhs floating point type. 4915a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4916a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 49171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isComplexIntegerType()) { 4918a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the complex floating point type. 4919a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(rhs); 4920a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4921a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // We have two real floating types, float/complex combos were handled above. 4922a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Convert the smaller operand to the bigger result. 4923a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 4924a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (result > 0) // convert the rhs 4925a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4926a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(result < 0 && "illegal float comparison"); 4927a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; // convert the lhs 4928a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4929a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexIntegerType() || rhs->isComplexIntegerType()) { 4930a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle GCC complex int extension. 4931a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *lhsComplexInt = lhs->getAsComplexIntegerType(); 4932a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *rhsComplexInt = rhs->getAsComplexIntegerType(); 4933a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4934a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsComplexInt && rhsComplexInt) { 49351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (getIntegerTypeOrder(lhsComplexInt->getElementType(), 4936a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsComplexInt->getElementType()) >= 0) 4937a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // convert the rhs 4938a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4939a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (lhsComplexInt && rhs->isIntegerType()) { 4940a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 4941a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4942a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (rhsComplexInt && lhs->isIntegerType()) { 4943a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 4944a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4945a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4946a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4947a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Finally, we have two differing integer types. 4948a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The rules for this case are in C99 6.3.1.8 4949a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int compare = getIntegerTypeOrder(lhs, rhs); 4950a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman bool lhsSigned = lhs->isSignedIntegerType(), 4951a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsSigned = rhs->isSignedIntegerType(); 4952a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman QualType destType; 4953a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsSigned == rhsSigned) { 4954a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Same signedness; use the higher-ranked type 4955a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = compare >= 0 ? lhs : rhs; 4956a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (compare != (lhsSigned ? 1 : -1)) { 4957a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The unsigned type has greater than or equal rank to the 4958a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // signed type, so use the unsigned type 4959a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? rhs : lhs; 4960a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (getIntWidth(lhs) != getIntWidth(rhs)) { 4961a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The two types are different widths; if we are here, that 4962a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // means the signed type is larger than the unsigned type, so 4963a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // use the signed type. 4964a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? lhs : rhs; 4965a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { 4966a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The signed type is higher-ranked than the unsigned type, 4967a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // but isn't actually any bigger (like unsigned int and long 4968a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // on most 32-bit systems). Use the unsigned type corresponding 4969a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // to the signed type. 4970a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = getCorrespondingUnsignedType(lhsSigned ? lhs : rhs); 4971a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4972a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return destType; 4973a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 4974