ASTContext.cpp revision 1eb4433ac451dc16f4133a88af2d002ac26c58ef
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ASTContext.cpp - Context to hold long-lived AST nodes ------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the ASTContext interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 1549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis#include "clang/AST/DeclCXX.h" 16980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 17aaba5e346dffdbad5d1c42765a89e4a7afb0da67Douglas Gregor#include "clang/AST/DeclTemplate.h" 18b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis#include "clang/AST/TypeLoc.h" 19e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 202cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor#include "clang/AST/ExternalASTSource.h" 2119cc4abea06a9b49e0e16a50d335c064cd723572Anders Carlsson#include "clang/AST/RecordLayout.h" 221b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner#include "clang/Basic/Builtins.h" 23a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner#include "clang/Basic/SourceManager.h" 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 2585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 266fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.h" 27557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner#include "llvm/Support/MemoryBuffer.h" 2829445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson#include "RecordLayoutBuilder.h" 2929445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3661710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 3761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner TargetInfo &t, 38e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 391b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner Builtin::Context &builtins, 401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool FreeMem, unsigned size_reserve) : 411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 42782fa308a765aeac2acb39c4e697c937ec21185bMike Stump ObjCFastEnumerationStateTypeDecl(0), FILEDecl(0), jmp_bufDecl(0), 431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump sigjmp_bufDecl(0), SourceMgr(SM), LangOpts(LOpts), 441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump LoadedExternalComments(false), FreeMemory(FreeMem), Target(t), 452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Idents(idents), Selectors(sels), 461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BuiltinInfo(builtins), ExternalSource(0), PrintingPolicy(LOpts) { 470f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCIdRedefinitionType = QualType(); 480f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCClassRedefinitionType = QualType(); 491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (size_reserve > 0) Types.reserve(size_reserve); 50e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 5114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff InitBuiltinTypes(); 52e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 53e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 574b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 60b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 61b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 62b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 63b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 64b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 65b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 66b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 67b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 68b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 69b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 71b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>::iterator 72b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar I = ObjCLayouts.begin(), E = ObjCLayouts.end(); 73b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 74b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 75b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 76b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 77b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 78b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 79ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 801ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 811ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNSEnd = NestedNameSpecifiers.end(); 831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS != NNSEnd; 841ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor /* Increment in loop */) 851ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 86ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 87ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 88ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 89ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 90b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 942cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 952cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 962cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 972cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 1017c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 102dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 1031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump#define TYPE(Name, Parent) 0, 104dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 105dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 106dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 107dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 108c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 111dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 114dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 115dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 116dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 117dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 118dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 119dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 120dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 121dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 122dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 1231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 124dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1252cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1262cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1272cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1282cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1292cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 134f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Types.push_back((R = QualType(new (*this,8) BuiltinType(K),0)).getTypePtr()); 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 14615b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 16864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1692df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1702df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1712df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1722df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1733a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1743a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1753a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1763a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 17764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 178f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 179f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char16Ty, BuiltinType::Char16); 180f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 181f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16Ty = getFromTargetType(Target.getChar16Type()); 182f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 183f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 184f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char32Ty, BuiltinType::Char32); 185f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 186f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32Ty = getFromTargetType(Target.getChar32Type()); 187f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 1888e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 189898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 190898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 191898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 192898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 193898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 194898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 195898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 196898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 1978e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 1981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Placeholder type for C++0x auto declarations whose real type has 199e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 200e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 2011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2068e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2077e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 2081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 209de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // "Builtin" typedefs set by Sema::ActOnTranslationUnitScope(). 210de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = QualType(); 211de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = QualType(); 2121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 213de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // Builtin types for 'id' and 'Class'. 214de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); 215de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); 21614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 217a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 2181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 22033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2216e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2226e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2236e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2267caa6825f42a0f7e97d6fc06233133c42b218e46Douglas GregorVarDecl *ASTContext::getInstantiatedFromStaticDataMember(VarDecl *Var) { 2277caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Var->isStaticDataMember() && "Not a static data member"); 2287caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor llvm::DenseMap<VarDecl *, VarDecl *>::iterator Pos 2297caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor = InstantiatedFromStaticDataMember.find(Var); 2307caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Pos == InstantiatedFromStaticDataMember.end()) 2317caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return 0; 2321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2337caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return Pos->second; 2347caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2357caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 2377caa6825f42a0f7e97d6fc06233133c42b218e46Douglas GregorASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl) { 2387caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Inst->isStaticDataMember() && "Not a static data member"); 2397caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Tmpl->isStaticDataMember() && "Not a static data member"); 2407caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(!InstantiatedFromStaticDataMember[Inst] && 2417caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor "Already noted what static data member was instantiated from"); 2427caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor InstantiatedFromStaticDataMember[Inst] = Tmpl; 2437caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2447caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2450d8df780aef1acda5962347a32591efc629b6748Anders CarlssonUnresolvedUsingDecl * 2460d8df780aef1acda5962347a32591efc629b6748Anders CarlssonASTContext::getInstantiatedFromUnresolvedUsingDecl(UsingDecl *UUD) { 2471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::DenseMap<UsingDecl *, UnresolvedUsingDecl *>::iterator Pos 2480d8df780aef1acda5962347a32591efc629b6748Anders Carlsson = InstantiatedFromUnresolvedUsingDecl.find(UUD); 2490d8df780aef1acda5962347a32591efc629b6748Anders Carlsson if (Pos == InstantiatedFromUnresolvedUsingDecl.end()) 2500d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return 0; 2511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2520d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return Pos->second; 2530d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2540d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 2550d8df780aef1acda5962347a32591efc629b6748Anders Carlssonvoid 2560d8df780aef1acda5962347a32591efc629b6748Anders CarlssonASTContext::setInstantiatedFromUnresolvedUsingDecl(UsingDecl *UD, 2570d8df780aef1acda5962347a32591efc629b6748Anders Carlsson UnresolvedUsingDecl *UUD) { 2580d8df780aef1acda5962347a32591efc629b6748Anders Carlsson assert(!InstantiatedFromUnresolvedUsingDecl[UD] && 2590d8df780aef1acda5962347a32591efc629b6748Anders Carlsson "Already noted what using decl what instantiated from"); 2600d8df780aef1acda5962347a32591efc629b6748Anders Carlsson InstantiatedFromUnresolvedUsingDecl[UD] = UUD; 2610d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2620d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 263d8b285fee4471f393da8ee30f552ceacdc362afaAnders CarlssonFieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { 264d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos 265d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson = InstantiatedFromUnnamedFieldDecl.find(Field); 266d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson if (Pos == InstantiatedFromUnnamedFieldDecl.end()) 267d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return 0; 2681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 269d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return Pos->second; 270d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 271d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 272d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlssonvoid ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, 273d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson FieldDecl *Tmpl) { 274d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed"); 275d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Tmpl->getDeclName() && "Template field decl is not unnamed"); 276d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!InstantiatedFromUnnamedFieldDecl[Inst] && 277d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson "Already noted what unnamed field was instantiated from"); 2781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 279d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; 280d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 281d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 2822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregornamespace { 2831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump class BeforeInTranslationUnit 2842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor : std::binary_function<SourceRange, SourceRange, bool> { 2852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceManager *SourceMgr; 2861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor public: 2882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 2891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool operator()(SourceRange X, SourceRange Y) { 2912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 2922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 2932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor }; 2942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 2952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 2962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Determine whether the given comment is a Doxygen-style comment. 2972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 2982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Start the start of the comment text. 2992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param End the end of the comment text. 3012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Member whether we want to check whether this is a member comment 3032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// (which requires a < after the Doxygen-comment delimiter). Otherwise, 3042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// we only return true when we find a non-member comment. 3051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic bool 3061eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpisDoxygenComment(SourceManager &SourceMgr, SourceRange Comment, 3072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool Member = false) { 3081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *BufferStart 3092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(SourceMgr.getFileID(Comment.getBegin())).first; 3102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *Start = BufferStart + SourceMgr.getFileOffset(Comment.getBegin()); 3112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char* End = BufferStart + SourceMgr.getFileOffset(Comment.getEnd()); 3121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (End - Start < 4) 3142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor assert(Start[0] == '/' && "Not a comment?"); 3172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '*' && !(Start[2] == '!' || Start[2] == '*')) 3182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '/' && !(Start[2] == '!' || Start[2] == '/')) 3202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return (Start[3] == '<') == Member; 3232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 3242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Retrieve the comment associated with the given declaration, if 3261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// it has one. 3272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorconst char *ASTContext::getCommentForDecl(const Decl *D) { 3282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!D) 3292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check whether we have cached a comment string for this declaration 3322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // already. 3331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::DenseMap<const Decl *, std::string>::iterator Pos 3342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = DeclComments.find(D); 3352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Pos != DeclComments.end()) 3362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Pos->second.c_str(); 3372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If we have an external AST source and have not yet loaded comments from 3392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // that source, do so now. 3402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (ExternalSource && !LoadedExternalComments) { 3412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange> LoadedComments; 3422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExternalSource->ReadComments(LoadedComments); 3431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!LoadedComments.empty()) 3452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Comments.insert(Comments.begin(), LoadedComments.begin(), 3462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedComments.end()); 3471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments = true; 3492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If there are no comments anywhere, we won't find anything. 3522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Comments.empty()) 3532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the declaration doesn't map directly to a location in a file, we 3562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // can't find the comment. 3572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceLocation DeclStartLoc = D->getLocStart(); 3582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartLoc.isInvalid() || !DeclStartLoc.isFileID()) 3592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Find the comment that occurs just before this declaration. 3622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator LastComment 3631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = std::lower_bound(Comments.begin(), Comments.end(), 3642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceRange(DeclStartLoc), 3652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor BeforeInTranslationUnit(&SourceMgr)); 3661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the location for the start of the declaration and find the 3682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // beginning of the file buffer. 3691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<FileID, unsigned> DeclStartDecomp 3702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(DeclStartLoc); 3711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *FileBufferStart 3722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(DeclStartDecomp.first).first; 3731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // First check whether we have a comment for a member. 3752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment != Comments.end() && 3762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor !isa<TagDecl>(D) && !isa<NamespaceDecl>(D) && 3772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor isDoxygenComment(SourceMgr, *LastComment, true)) { 3782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 3792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 3802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first == LastCommentEndDecomp.first && 3812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second) 3821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump == SourceMgr.getLineNumber(LastCommentEndDecomp.first, 3832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second)) { 3842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The Doxygen member comment comes after the declaration starts and 3852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is on the same line and in the same file as the declaration. This 3862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is the comment we want. 3872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 3881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 3891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 3902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 3912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 3922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment == Comments.begin()) 3962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --LastComment; 3982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the end of the comment. 4002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 4012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 4021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment and the declaration aren't in the same file, then they 4042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // aren't related. 4052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first != LastCommentEndDecomp.first) 4062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check that we actually have a Doxygen comment. 4092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *LastComment)) 4102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Compute the starting line for the declaration and for the end of the 4132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // comment (this is expensive). 4141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned DeclStartLine 4152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second); 4162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned CommentEndLine 4171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = SourceMgr.getLineNumber(LastCommentEndDecomp.first, 4182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second); 4191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment does not end on the line prior to the declaration, then 4212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // the comment is not associated with the declaration at all. 4222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (CommentEndLine + 1 != DeclStartLine) 4232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // We have a comment, but there may be more comments on the previous lines. 4262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Keep looking so long as the comments are still Doxygen comments and are 4272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // still adjacent. 4281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ExpectedLine 4292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(LastComment->getBegin()) - 1; 4302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator FirstComment = LastComment; 4312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != Comments.begin()) { 4322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Look at the previous comment 4332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --FirstComment; 4342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> Decomp 4352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this previous comment is in a different file, we're done. 4382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Decomp.first != DeclStartDecomp.first) { 4392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this comment is not a Doxygen comment, we're done. 4442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *FirstComment)) { 4452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the line number is not what we expected, we're done. 4502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned Line = SourceMgr.getLineNumber(Decomp.first, Decomp.second); 4512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Line != ExpectedLine) { 4522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Set the next expected line number. 4571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExpectedLine 4582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(FirstComment->getBegin()) - 1; 4592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The iterator range [FirstComment, LastComment] contains all of the 4622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // BCPL comments that, together, are associated with this declaration. 4632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Form a single comment block string for this declaration that concatenates 4642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // all of these comments. 4652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 4662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != LastComment) { 4672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompStart 4682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getBegin()); 4692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompEnd 4702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + DecompStart.second, 4722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + DecompEnd.second + 1); 4732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Append the last comment line. 4771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 4781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 4792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 4802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 4812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 4822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 483464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 484464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 485464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 486a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 487b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 488b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 489b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 490b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 491b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 492b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 493b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 494b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 495b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 496b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 497b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 498b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 499b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 500af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// getDeclAlign - Return a conservative estimate of the alignment of the 501af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 502af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 503b7d0844c887a72064b624dc6df12cbe1441f69d0Daniel Dunbarunsigned ASTContext::getDeclAlignInBytes(const Decl *D) { 504dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 505dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 50640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 507dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, AA->getAlignment()); 508dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 509af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 510af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 5116217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType* RT = T->getAs<ReferenceType>()) { 5124cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 513f0930235ce58a91aa3b840bece9052f44d630536Anders Carlsson Align = Target.getPointerAlign(AS); 5144cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson } else if (!T->isIncompleteType() && !T->isFunctionType()) { 5154cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 516dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 517dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 518dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 519dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 520dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 521af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 522dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 523dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 524af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 525b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 526a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 527a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 528d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 5291d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 5305e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 5315e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 532a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 53372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 53472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 53518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 53672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 53772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 53818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 53972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 54072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 5415d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 5425d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 54318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 54418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 54518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 54618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 54718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 54872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 549fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 55018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 55118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 55218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 55318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 5547e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor case Type::ConstantArrayWithExpr: 5557e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor case Type::ConstantArrayWithoutExpr: 556fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 5571d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 5581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 55998be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 5609e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 561030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 562030d8846c7e520330007087e949f621989876e3aChris Lattner break; 5635c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 564213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 565030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 5661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> EltInfo = 56798be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 5689e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 5694bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 5706fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 5716fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 5726fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // FIXME: this should probably be a target property. 5736fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman Align = 1 << llvm::Log2_32_Ceil(Align); 574030d8846c7e520330007087e949f621989876e3aChris Lattner break; 575030d8846c7e520330007087e949f621989876e3aChris Lattner } 5765d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 5779e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 578a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 579692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 580d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 58118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 58218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 58318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 58418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 58518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 5866f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 5879e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 5889e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 5896f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 590692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 591692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 592692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 5936f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 5949e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 5959e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 5966f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 59764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 59864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 59964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 60064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 601f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char16: 602f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar16Width(); 603f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar16Align(); 604f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 605f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char32: 606f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar32Width(); 607f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar32Align(); 608f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 609692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 6106f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 6119e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 6129e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 6136f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 614692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 6156f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 6169e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 6179e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 6186f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 619692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 6206f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 6219e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 6229e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 6236f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 624692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 6256f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 6269e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 6279e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 6286f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 629ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 630ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 631ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 632ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 633ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 6346f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 6359e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 6369e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 6376f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6386f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 6395426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 6405426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 6416f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6426f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 6439e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 6449e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 6456f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6466e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 6476e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 6486e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 6491590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 650a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 651bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 652f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case Type::FixedWidthInt: 653f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: This isn't precisely correct; the width/alignment should depend 654f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // on the available types for the target 655f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Width = cast<FixedWidthIntType>(T)->getWidth(); 656736166b38235cf6d0ffb67638960d95fb2afcbd6Chris Lattner Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 657f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Align = Width; 658f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman break; 659f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian case Type::ExtQual: 66098be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 66198be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 662f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian return getTypeInfo(QualType(cast<ExtQualType>(T)->getBaseType(), 0)); 663d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 6645426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 665f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 6666f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 667485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 668485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 669485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 670485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 671485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 672485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 673f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 674f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 6755426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 676f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 677f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 678f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 6797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 6807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 6817ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 6825d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 6836f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 6846f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 685bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 686f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 6871cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // FIXME: This is ABI dependent. We use the Itanium C++ ABI. 6881cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // http://www.codesourcery.com/public/cxx-abi/abi.html#member-pointers 6891cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // If we ever want to support other ABIs this needs to be abstracted. 6901cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson 691f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 6921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> PtrDiffInfo = 6931cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 6941cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 695f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 696f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 6971cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 6981cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 699f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 7005d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 7015d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 7025d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 7031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> EltInfo = 70498be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 7059e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 7065d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 7075d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 7085d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 70944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 7101d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 71144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 71244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 71344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 71444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 71544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 71672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 71772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 7181d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 7191d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 7201d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 7218389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 7228389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 7238389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 7248389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 7251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7261d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 7277176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 7287176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 7291d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 7307176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 7317176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 7327176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 733dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 734a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 7357532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 7367da2431c23ef1ee8acb114e39692246e1801afc2John McCall case Type::Elaborated: { 7377da2431c23ef1ee8acb114e39692246e1801afc2John McCall return getTypeInfo(cast<ElaboratedType>(T)->getUnderlyingType().getTypePtr()); 7387da2431c23ef1ee8acb114e39692246e1801afc2John McCall } 7397da2431c23ef1ee8acb114e39692246e1801afc2John McCall 74018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 74118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 74240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 74318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = Aligned->getAlignment(); 74418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 74518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 74618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 7477532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 7487176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 74918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 75018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 75118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 75218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 75318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 75418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 75518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 75618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 757395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 758395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 759395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 760395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 76118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 76218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 7631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 76418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 7651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(getCanonicalType(T) != T && 76618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 76718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 76818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 76918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 77018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 77118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 7721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 773464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 7749e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 775a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 776a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 77734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 77834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 77934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 78034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 78134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 78234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 7831eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 7841eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 7851eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (const ComplexType* CT = T->getAsComplexType()) 7861eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 7871eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 7881eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 7891eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 7901eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 79134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 79234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 79334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 794a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 795a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 796a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 797a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 798a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 799f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 800a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 801a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 802a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 803a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 804a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 805a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 806a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 807a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 808a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 809a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 810a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 811a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 8128e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 8138e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 8148e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 8158e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 8168e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 8178e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian bool CollectSynthesized) { 8188e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 8198e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 8208e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 8218e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8228e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (CollectSynthesized) 8238e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian CollectSynthesizedIvars(OI, Ivars); 8248e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8258e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8269820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 8279820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 82817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 82917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8309820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8319820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8339820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 8349820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8359820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8369820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 8379820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8389820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8399820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// CollectSynthesizedIvars - 8409820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// This routine collect synthesized ivars for the designated class. 8419820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 8429820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 8439820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 84417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 84517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 8469820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8479820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8489820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8499820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 8509820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 8519820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 8529820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 8539820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 8549820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 8559820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8569820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8579820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8588e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 8598e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 86017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 86117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8628e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 8638e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8648e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8658e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into nested protocols. 8668e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8678e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8688e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(*P); 8698e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 8708e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8718e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) { 8738e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 87417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 87517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 8768e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 8778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8788e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into interface's protocol list for properties declared 8808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // in the protocol and whose ivars are synthesized. 8818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 8828e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 8838e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ObjCProtocolDecl *PD = (*P); 8848e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(PD); 8858e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8868e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 8878e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8888e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8898a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCInterfaceDecl,or NULL if none exists. 8908a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { 8918a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 8928a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 8938a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 8948a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCImplementationDecl>(I->second); 8958a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 8968a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 8978a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCCategoryDecl, or NULL if none exists. 8988a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { 8998a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 9008a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 9018a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 9028a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCCategoryImplDecl>(I->second); 9038a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 9048a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9058a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 9068a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCInterfaceDecl. 9078a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, 9088a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImplementationDecl *ImplD) { 9098a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(IFaceD && ImplD && "Passed null params"); 9108a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[IFaceD] = ImplD; 9118a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9128a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCCategoryDecl. 9138a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, 9148a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCCategoryImplDecl *ImplD) { 9158a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(CatD && ImplD && "Passed null params"); 9168a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[CatD] = ImplD; 9178a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9188a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 919b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \brief Allocate an uninitialized DeclaratorInfo. 920b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 921b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// The caller should initialize the memory held by DeclaratorInfo using 922b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// the TypeLoc wrappers. 923b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 924b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \param T the type that will be the basis for type source info. This type 925b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// should refer to how the declarator was written in source code, not to 926b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// what type semantic analysis resolved the declarator to. 927b17166c8077cd900cca83a895c43b30ea6660598Argyrios KyrtzidisDeclaratorInfo *ASTContext::CreateDeclaratorInfo(QualType T) { 928b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis unsigned DataSize = TypeLoc::getFullDataSizeForType(T); 929b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis DeclaratorInfo *DInfo = 930b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis (DeclaratorInfo*)BumpAlloc.Allocate(sizeof(DeclaratorInfo) + DataSize, 8); 931b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis new (DInfo) DeclaratorInfo(T); 932b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis return DInfo; 933b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis} 934b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis 935b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 936b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 937b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 938b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 939b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 94044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 941b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 942b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 943532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 944532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 94544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 9461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCContainerDecl *Key = 947d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 948d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 949d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 95044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 951453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 952453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 95329445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson unsigned FieldCount = D->ivar_size(); 9548e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned SynthCount = CountSynthesizedIvars(D); 9558e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian FieldCount += SynthCount; 956d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 957453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 958453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 959453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 9608e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 961453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 962453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 963453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 9641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 96529445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D, Impl); 96629445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ObjCLayouts[Key] = NewEntry; 9671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 96844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 96944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 97044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 971b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 972b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 973b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 974b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 975b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 976b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 977b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 978b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 979b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 980b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 98188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 982464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 983464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 98498be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 9854b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 9864b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 9874bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 988464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 989ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // Note that we can't save a reference to the entry because this function 990ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // is recursive. 991ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman const ASTRecordLayout *Entry = ASTRecordLayouts[D]; 992464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 9934bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 9941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 99529445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D); 996ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman ASTRecordLayouts[D] = NewEntry; 9971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9985d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 999464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 1000464175bba1318bef7905122e9fda20cff926df78Chris Lattner 1001a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1002a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 1003a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1004a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 1005f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 1006f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 1007f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 1008f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 1009b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 1010b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 1011b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 1012b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1013b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr = QualType::GCNone; 1014b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 10151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1016b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 1017b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 1018b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 1019b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getAddressSpace() == 0 && 1020b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 1021b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttr = EQT->getObjCGCAttr(); 1022b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 1023b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 10241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1025b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Check if we've already instantiated this type. 1026ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 10272455636163fdd18581d7fdae816433f886d88213Mike Stump ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 1028ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 1029f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 1030b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 1031b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 1032ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 1033ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 1034ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 1035b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (!TypeNode->isCanonical()) { 1036f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Canonical = getAddrSpaceQualType(CanT, AddressSpace); 10371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1038b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 1039f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 1040f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1041ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 1042b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 1043b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 1044f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 1045ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 1046b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 1047ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 1048ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1049b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 1050b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr) { 1051d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 1052b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 1053d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 10541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10554027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 10566217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 105758f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff if (Pointee->isAnyPointerType()) { 10584027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 10594027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 10604027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 10614027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 1062b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 1063b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 1064b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1065b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 1066b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned AddressSpace = 0; 10671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1068b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 10692455636163fdd18581d7fdae816433f886d88213Mike Stump // If this type already has an ObjCGC specified, it cannot get 1070b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 1071b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getObjCGCAttr() == QualType::GCNone && 10722455636163fdd18581d7fdae816433f886d88213Mike Stump "Type cannot have multiple ObjCGCs!"); 1073b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner AddressSpace = EQT->getAddressSpace(); 1074b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 1075b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 10761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1077d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check if we've already instantiated an gc qual'd type of this type. 1078d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian llvm::FoldingSetNodeID ID; 10792455636163fdd18581d7fdae816433f886d88213Mike Stump ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 1080d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian void *InsertPos = 0; 1081d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 1082b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 10831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1084d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // If the base type isn't canonical, this won't be a canonical type either, 1085d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // so fill in the canonical type field. 10865a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: Isn't this also not canonical if the base type is a array 10875a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // or pointer type? I can't find any documentation for objc_gc, though... 1088d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType Canonical; 1089d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (!T->isCanonical()) { 1090b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Canonical = getObjCGCQualType(CanT, GCAttr); 10911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1092b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 1093d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 1094d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1095d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 1096b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 1097b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 1098d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 1099d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian Types.push_back(New); 1100b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 1101d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1102a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 11032455636163fdd18581d7fdae816433f886d88213Mike StumpQualType ASTContext::getNoReturnType(QualType T) { 11046dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump QualifierSet qs; 11056dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump qs.strip(T); 11062455636163fdd18581d7fdae816433f886d88213Mike Stump if (T->isPointerType()) { 11076217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 11082455636163fdd18581d7fdae816433f886d88213Mike Stump QualType ResultType = getNoReturnType(Pointee); 11096dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType = getPointerType(ResultType); 11106dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType.setCVRQualifiers(T.getCVRQualifiers()); 11116dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump return qs.apply(ResultType, *this); 11122455636163fdd18581d7fdae816433f886d88213Mike Stump } 11132455636163fdd18581d7fdae816433f886d88213Mike Stump if (T->isBlockPointerType()) { 11146217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<BlockPointerType>()->getPointeeType(); 11152455636163fdd18581d7fdae816433f886d88213Mike Stump QualType ResultType = getNoReturnType(Pointee); 11166dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType = getBlockPointerType(ResultType); 11176dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType.setCVRQualifiers(T.getCVRQualifiers()); 11186dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump return qs.apply(ResultType, *this); 11191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 11202455636163fdd18581d7fdae816433f886d88213Mike Stump if (!T->isFunctionType()) 11212455636163fdd18581d7fdae816433f886d88213Mike Stump assert(0 && "can't noreturn qualify non-pointer to function or block type"); 11221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1123e24aea225ec87b935ede6c21c964dd47a4afb810Mike Stump if (const FunctionNoProtoType *F = T->getAsFunctionNoProtoType()) { 11242455636163fdd18581d7fdae816433f886d88213Mike Stump return getFunctionNoProtoType(F->getResultType(), true); 11252455636163fdd18581d7fdae816433f886d88213Mike Stump } 1126e24aea225ec87b935ede6c21c964dd47a4afb810Mike Stump const FunctionProtoType *F = T->getAsFunctionProtoType(); 11272455636163fdd18581d7fdae816433f886d88213Mike Stump return getFunctionType(F->getResultType(), F->arg_type_begin(), 11282455636163fdd18581d7fdae816433f886d88213Mike Stump F->getNumArgs(), F->isVariadic(), F->getTypeQuals(), 11292455636163fdd18581d7fdae816433f886d88213Mike Stump F->hasExceptionSpec(), F->hasAnyExceptionSpec(), 11302455636163fdd18581d7fdae816433f886d88213Mike Stump F->getNumExceptions(), F->exception_begin(), true); 11312455636163fdd18581d7fdae816433f886d88213Mike Stump} 11322455636163fdd18581d7fdae816433f886d88213Mike Stump 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 11365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 11401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 11441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 1149f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 11501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1153f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1155f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ComplexType *New = new (*this,8) ComplexType(T, Canonical); 11565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 11585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1161f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 1162f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 1163f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 1164f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 1165f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 1166f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 1167f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 1168f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 11715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 11771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 11811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 1186f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 11871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1190f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1192f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff PointerType *New = new (*this,8) PointerType(T, Canonical); 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 11955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getBlockPointerType - Return the uniqued reference to the type for 11995618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 12005618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1201296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1202296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 12035618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 12045618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 12055618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 12061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12075618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 12085618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 12095618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 12105618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 12111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the block pointee type isn't canonical, this won't be a canonical 12135618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 12145618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 12155618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 12165618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 12171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12185618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 12195618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 12205618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1221f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12225618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 1223f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff BlockPointerType *New = new (*this,8) BlockPointerType(T, Canonical); 12245618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 12255618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 12265618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 12275618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 12285618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 12297c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 12307c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 12317c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getLValueReferenceType(QualType T) { 12325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 12365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12387c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 12397c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 12417c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 12467c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getLValueReferenceType(getCanonicalType(T)); 12477c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12487c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 12497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 12507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 12517c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12527c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 12537c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12547c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *New = new (*this,8) LValueReferenceType(T, Canonical); 12557c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 12567c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 12577c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 12587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 12597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12607c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 12617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 12627c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 12637c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 12647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 12657c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 12667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ReferenceType::Profile(ID, T); 12677c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12687c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 12697c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 12707c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12717c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 12727c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12737c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 12747c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 12757c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 12767c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (!T->isCanonical()) { 12777c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getRValueReferenceType(getCanonicalType(T)); 12787c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 12817c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1282f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *New = new (*this,8) RValueReferenceType(T, Canonical); 12865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 12885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1291f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1292f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 12931eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) { 1294f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1295f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1296f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1297f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1298f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1299f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1300f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1301f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1302f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1303f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1304f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1305f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1306f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 1307f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (!T->isCanonical()) { 1308f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1309f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1310f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1311f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1312f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1313f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1314f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1315f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff MemberPointerType *New = new (*this,8) MemberPointerType(T, Cls, Canonical); 1316f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1317f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1318f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1319f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1320f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 13211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getConstantArrayType - Return the unique reference to the type for an 1322fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 13231eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getConstantArrayType(QualType EltTy, 132438aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1325c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1326c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1327587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman assert((EltTy->isDependentType() || EltTy->isConstantSizeType()) && 1328587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1329587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 133038aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 133138aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 133238aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 133338aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 13341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 13360be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 13371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ConstantArrayType *ATP = 13407192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 13415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 13421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 13445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 13455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 13465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 13471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1348c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 13495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ConstantArrayType *NewIP = 13517192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1352f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1355566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ConstantArrayType *New = 1356f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 13577192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 13585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13627e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// getConstantArrayWithExprType - Return a reference to the type for 13637e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// an array of the specified element type. 13647e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType 13657e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorASTContext::getConstantArrayWithExprType(QualType EltTy, 13667e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor const llvm::APInt &ArySizeIn, 13677e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *ArySizeExpr, 13687e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier ASM, 13697e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 13707e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 13717e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Convert the array size into a canonical width matching the pointer 13727e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // size for the target. 13737e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor llvm::APInt ArySize(ArySizeIn); 13747e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 13757e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 13767e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Compute the canonical ConstantArrayType. 13777e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor QualType Canonical = getConstantArrayType(getCanonicalType(EltTy), 13787e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 13797e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Since we don't unique expressions, it isn't possible to unique VLA's 13807e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // that have an expression provided for their size. 13817e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ConstantArrayWithExprType *New = 13827e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)ConstantArrayWithExprType(EltTy, Canonical, 13837e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ArySizeExpr, 13847e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ASM, EltTypeQuals, Brackets); 13857e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Types.push_back(New); 13867e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return QualType(New, 0); 13877e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor} 13887e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 13897e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// getConstantArrayWithoutExprType - Return a reference to the type for 13907e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor/// an array of the specified element type. 13917e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType 13927e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorASTContext::getConstantArrayWithoutExprType(QualType EltTy, 13937e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor const llvm::APInt &ArySizeIn, 13947e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier ASM, 13957e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals) { 13967e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Convert the array size into a canonical width matching the pointer 13977e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // size for the target. 13987e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor llvm::APInt ArySize(ArySizeIn); 13997e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 14007e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 14017e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor // Compute the canonical ConstantArrayType. 14027e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor QualType Canonical = getConstantArrayType(getCanonicalType(EltTy), 14037e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 14047e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ConstantArrayWithoutExprType *New = 14057e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)ConstantArrayWithoutExprType(EltTy, Canonical, 14067e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArySize, ASM, EltTypeQuals); 14077e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Types.push_back(New); 14087e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return QualType(New, 0); 14097e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor} 14107e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor 1411bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1412bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 14137e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 14147e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1415c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 14167e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14177e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1418c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1419c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1420c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1421566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek VariableArrayType *New = 14227e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor new(*this,8)VariableArrayType(EltTy, QualType(), 14237e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor NumElts, ASM, EltTypeQuals, Brackets); 1424c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1425c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1426c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1427c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1428c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1429c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1430898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1431898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 143204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor/// type. 14337e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 14347e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1435898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 14367e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14377e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 14381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 1439898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1440898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 144104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor llvm::FoldingSetNodeID ID; 14421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedArrayType::Profile(ID, *this, getCanonicalType(EltTy), ASM, 144304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor EltTypeQuals, NumElts); 1444898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 144504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor void *InsertPos = 0; 144604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *Canon 144704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 144804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *New; 144904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (Canon) { 145004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // We already have a canonical version of this array type; use it as 145104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // the canonical type for a newly-built type. 14521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump New = new (*this,8) DependentSizedArrayType(*this, EltTy, 145304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType(Canon, 0), 145404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor NumElts, ASM, EltTypeQuals, 145504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor Brackets); 145604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 145704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType CanonEltTy = getCanonicalType(EltTy); 145804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (CanonEltTy == EltTy) { 145904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor New = new (*this,8) DependentSizedArrayType(*this, EltTy, QualType(), 146004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor NumElts, ASM, EltTypeQuals, 146104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor Brackets); 146204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayTypes.InsertNode(New, InsertPos); 146304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 146404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType Canon = getDependentSizedArrayType(CanonEltTy, NumElts, 146504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor ASM, EltTypeQuals, 146604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor SourceRange()); 146704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor New = new (*this,8) DependentSizedArrayType(*this, EltTy, Canon, 146804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor NumElts, ASM, EltTypeQuals, 14691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Brackets); 147004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 147104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 14721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1473898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1474898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1475898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1476898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1477c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1478c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1479c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1480c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 14810be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1482c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1483c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 14841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (IncompleteArrayType *ATP = 1485c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1486c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1487c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1488c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1489c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1490c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1491c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1492c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 1493f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 14942bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1495c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1496c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1497c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1498c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1499f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15002bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1501c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 15027e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor IncompleteArrayType *New 15037e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor = new (*this,8) IncompleteArrayType(EltTy, Canonical, 15047e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ASM, EltTypeQuals); 1505c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1506c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1507c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1508c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1509fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1510fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 151173322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 151273322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 151373322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 15145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 15151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1516f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 151773322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 15181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 15205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 15211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VectorType::Profile(ID, vecType, NumElts, Type::Vector); 15225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 15235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 15245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 15255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 15275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 15285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 15295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 1530f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 15311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 15335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1534f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1536f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff VectorType *New = new (*this,8) VectorType(vecType, NumElts, Canonical); 15375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 15385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 15395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 15405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1542213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 154373322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1544213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 154573322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 15461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1547f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1548213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 15491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 155073322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 155173322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 15521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 155373322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 155473322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 155573322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 155673322924127c873c13101b705dd823f5539ffa5fSteve Naroff 155773322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 155873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 155973322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 156073322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 1561213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 15621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 156373322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 156473322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1565f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 156673322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 1567f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ExtVectorType *New = new (*this,8) ExtVectorType(vecType, NumElts, Canonical); 156873322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 156973322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 157073322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 157173322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 157273322924127c873c13101b705dd823f5539ffa5fSteve Naroff 15731eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 15749cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 15759cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 15762ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor llvm::FoldingSetNodeID ID; 15771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), 15782ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr); 15791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15802ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor void *InsertPos = 0; 15812ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *Canon 15822ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 15832ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *New; 15842ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (Canon) { 15852ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // We already have a canonical version of this array type; use it as 15862ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // the canonical type for a newly-built type. 15872ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor New = new (*this,8) DependentSizedExtVectorType(*this, vecType, 15882ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType(Canon, 0), 15892ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr, AttrLoc); 15902ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 15912ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType CanonVecTy = getCanonicalType(vecType); 15922ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (CanonVecTy == vecType) { 15931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump New = new (*this,8) DependentSizedExtVectorType(*this, vecType, 15941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType(), SizeExpr, 15952ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor AttrLoc); 15962ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorTypes.InsertNode(New, InsertPos); 15972ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 15982ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType Canon = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, 15992ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SourceLocation()); 16002ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor New = new (*this,8) DependentSizedExtVectorType(*this, vecType, Canon, 16012ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr, AttrLoc); 16022ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 16032ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 16041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16059cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 16069cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 16079cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 16089cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 160972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 16105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 16112455636163fdd18581d7fdae816433f886d88213Mike StumpQualType ASTContext::getFunctionNoProtoType(QualType ResultTy, bool NoReturn) { 16125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 16135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 16145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 16152455636163fdd18581d7fdae816433f886d88213Mike Stump FunctionNoProtoType::Profile(ID, ResultTy, NoReturn); 16161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionNoProtoType *FT = 161972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 16205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 16211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 16235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 16242455636163fdd18581d7fdae816433f886d88213Mike Stump Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy), NoReturn); 16251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 162772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 162872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1629f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16322455636163fdd18581d7fdae816433f886d88213Mike Stump FunctionNoProtoType *New 16332455636163fdd18581d7fdae816433f886d88213Mike Stump = new (*this,8) FunctionNoProtoType(ResultTy, Canonical, NoReturn); 16345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 163572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 16365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 16375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 16405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 164161710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1642971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1643465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1644465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 16452455636163fdd18581d7fdae816433f886d88213Mike Stump const QualType *ExArray, bool NoReturn) { 16465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 16475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 16485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 164972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1650465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 16512455636163fdd18581d7fdae816433f886d88213Mike Stump NumExs, ExArray, NoReturn); 16525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionProtoType *FTP = 165572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 16565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1657465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1658465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 16595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 1660465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl if (hasExceptionSpec) 1661465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl isCanonical = false; 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 16635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 16645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 16655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1667465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 16685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 16695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 16705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 16715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 16725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1673f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 1674465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1675f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1676beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 167747259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor isVariadic, TypeQuals, false, 167847259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor false, 0, 0, NoReturn); 1679465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 16805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 168172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 168272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1683f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1685465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 168672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1687465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1688465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 16891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FunctionProtoType *FTP = 1690465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1691465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 1692465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumExs*sizeof(QualType), 8); 169372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1694465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 16952455636163fdd18581d7fdae816433f886d88213Mike Stump ExArray, NumExs, Canonical, NoReturn); 16965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 169772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 16985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 16995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17012ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 17022ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 17034b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 17041e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 17052ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 17061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17071e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 17082ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1709fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1710fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 17119fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (ObjCInterfaceDecl *ObjCInterface 17129fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump = dyn_cast<ObjCInterfaceDecl>(Decl)) 17132ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 171449aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1715c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1716566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1717566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1718f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1719f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) RecordType(Record); 17209fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1721566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1722566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1723f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1724f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) EnumType(Enum); 17259fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else 17262ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 172749aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 17284b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 172949aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 17302ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 17312ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 17325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 17335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 17345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 17355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 17361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1737f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 173872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Decl->TypeForDecl = new(*this,8) TypedefType(Type::Typedef, Decl, Canonical); 17395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 17405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 17415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1743fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 17441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parameter or parameter pack with the given depth, index, and (optionally) 174576e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 17461eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 174776e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1748fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1749fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 175076e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1751fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 17521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateTypeParmType *TypeParm 1753fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1754fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1755fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1756fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 17571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 175876e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 175976e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 176076e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, ParameterPack, 176176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson Name, Canon); 176276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 176376e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, ParameterPack); 1764fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1765fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1766fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1767fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1768fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1769fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1770fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 17711eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 17727532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 17737532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 17747532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 17757532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 1776b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (!Canon.isNull()) 1777b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = getCanonicalType(Canon); 1778b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor else { 1779b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor // Build the canonical template specialization type. 17801275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateName CanonTemplate = getCanonicalTemplateName(Template); 17811275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::SmallVector<TemplateArgument, 4> CanonArgs; 17821275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.reserve(NumArgs); 17831275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor for (unsigned I = 0; I != NumArgs; ++I) 17841275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.push_back(getCanonicalTemplateArgument(Args[I])); 17851275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 17861275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Determine whether this canonical template specialization type already 17871275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // exists. 17881275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::FoldingSetNodeID ID; 17891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType::Profile(ID, CanonTemplate, 1790828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor CanonArgs.data(), NumArgs, *this); 17911275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 17921275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor void *InsertPos = 0; 17931275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateSpecializationType *Spec 17941275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 17951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17961275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor if (!Spec) { 17971275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate a new canonical template specialization type. 17981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 17991275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor sizeof(TemplateArgument) * NumArgs), 18001275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 8); 18011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Spec = new (Mem) TemplateSpecializationType(*this, CanonTemplate, 18021275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.data(), NumArgs, 1803b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon); 18041275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Types.push_back(Spec); 18051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 18061275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 18071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1808b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (Canon.isNull()) 1809b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = QualType(Spec, 0); 18101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(Canon->isDependentType() && 18111275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor "Non-dependent template-id type must have a canonical type"); 1812b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor } 1813fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 18141275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate the (non-canonical) template specialization type, but don't 18151275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // try to unique it: these types typically have location information that 18161275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // we don't unique and don't want to lose. 18171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 181840808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 181940808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 8); 18201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType *Spec 18211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = new (Mem) TemplateSpecializationType(*this, Template, Args, NumArgs, 1822828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor Canon); 18231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 182455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 18251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(Spec, 0); 182655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 182755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 18281eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 1829ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1830e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1831e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1832ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1833e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1834e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 18351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualifiedNameType *T 1836e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1837e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1838e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1839e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 18401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T = new (*this) QualifiedNameType(NNS, NamedType, 1841ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1842e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1843e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1844e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1845e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1846e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 18471eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1848d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1849d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1850d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1851d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1852d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1853d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1854d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1855d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1856d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1857d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1858d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1859d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1860d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1861d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 18621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypenameType *T 1863d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1864d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1865d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1866d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1867d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1868d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1869d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 18701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 1871d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1872d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 18731eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 18741eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpASTContext::getTypenameType(NestedNameSpecifier *NNS, 18751734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 18761734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 18771734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 18781734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18791734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 18801734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 18811734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 18821734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 18831734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 18841734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = CanonType->getAsTemplateSpecializationType(); 18851734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 18861734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 18871734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 18881734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 18891734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 18901734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18911734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 18921734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 18931734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18941734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 18951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypenameType *T 18961734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 18971734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 18981734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 18991734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 19001734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 19011734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 19021734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 19031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 19041734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 19051734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 19067da2431c23ef1ee8acb114e39692246e1801afc2John McCallQualType 19077da2431c23ef1ee8acb114e39692246e1801afc2John McCallASTContext::getElaboratedType(QualType UnderlyingType, 19087da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::TagKind Tag) { 19097da2431c23ef1ee8acb114e39692246e1801afc2John McCall llvm::FoldingSetNodeID ID; 19107da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::Profile(ID, UnderlyingType, Tag); 19111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19127da2431c23ef1ee8acb114e39692246e1801afc2John McCall void *InsertPos = 0; 19137da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 19147da2431c23ef1ee8acb114e39692246e1801afc2John McCall if (T) 19157da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 19167da2431c23ef1ee8acb114e39692246e1801afc2John McCall 19177da2431c23ef1ee8acb114e39692246e1801afc2John McCall QualType Canon = getCanonicalType(UnderlyingType); 19187da2431c23ef1ee8acb114e39692246e1801afc2John McCall 19197da2431c23ef1ee8acb114e39692246e1801afc2John McCall T = new (*this) ElaboratedType(UnderlyingType, Tag, Canon); 19207da2431c23ef1ee8acb114e39692246e1801afc2John McCall Types.push_back(T); 19217da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedTypes.InsertNode(T, InsertPos); 19227da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 19237da2431c23ef1ee8acb114e39692246e1801afc2John McCall} 19247da2431c23ef1ee8acb114e39692246e1801afc2John McCall 192588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 192688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 192788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 192888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 19292e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 193088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 193188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 193288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 193388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 193488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 19351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 193688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 193788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 193888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 193988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 194088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 194188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 194288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 194388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1944d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 1945d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 194614108da7f7fc059772711e4ffee1322a27b152a7Steve NaroffQualType ASTContext::getObjCObjectPointerType(QualType InterfaceT, 19471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCProtocolDecl **Protocols, 1948d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff unsigned NumProtocols) { 1949d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // Sort the protocol list alphabetically to canonicalize it. 1950d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (NumProtocols) 1951d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff SortAndUniqueProtocols(Protocols, NumProtocols); 1952d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1953d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff llvm::FoldingSetNodeID ID; 195414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ObjCObjectPointerType::Profile(ID, InterfaceT, Protocols, NumProtocols); 1955d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1956d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 1957d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (ObjCObjectPointerType *QT = 1958d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1959d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QT, 0); 1960d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 1961d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // No Match; 1962d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerType *QType = 196314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff new (*this,8) ObjCObjectPointerType(InterfaceT, Protocols, NumProtocols); 19641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1965d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 1966d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 1967d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QType, 0); 1968d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 196988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1970c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// getObjCInterfaceType - Return the unique reference to the type for the 1971c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// specified ObjC interface decl. The list of protocols is optional. 1972c15cb2af27514ecc879daba9aa01389c5203685dSteve NaroffQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, 1973a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 19741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (NumProtocols) 1975c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff // Sort the protocol list alphabetically to canonicalize it. 1976c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff SortAndUniqueProtocols(Protocols, NumProtocols); 19771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19784b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1979c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 19801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19814b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1982c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (ObjCInterfaceType *QT = 1983c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 19844b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 19851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19864b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1987c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType *QType = 19881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump new (*this,8) ObjCInterfaceType(const_cast<ObjCInterfaceDecl*>(Decl), 1989c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff Protocols, NumProtocols); 19904b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1991c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.InsertNode(QType, InsertPos); 19924b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 19934b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 19944b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 199572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 199672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 19979752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 19981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// DeclRefExpr's. This doesn't effect the type checker, since it operates 19999752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 200072564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 2001dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType *toe; 2002b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (tofExpr->isTypeDependent()) { 2003b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor llvm::FoldingSetNodeID ID; 2004b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType::Profile(ID, *this, tofExpr); 20051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2006b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor void *InsertPos = 0; 2007b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType *Canon 2008b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); 2009b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (Canon) { 2010b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // We already have a "canonical" version of an identical, dependent 2011b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // typeof(expr) type. Use that as our canonical type. 20121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump toe = new (*this, 8) TypeOfExprType(tofExpr, 2013b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor QualType((TypeOfExprType*)Canon, 0)); 2014b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2015b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor else { 2016b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // Build a new, canonical typeof(expr) type. 2017b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor Canon = new (*this, 8) DependentTypeOfExprType(*this, tofExpr); 2018b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); 2019b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor toe = Canon; 2020b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2021b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } else { 2022dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType Canonical = getCanonicalType(tofExpr->getType()); 2023dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor toe = new (*this,8) TypeOfExprType(tofExpr, Canonical); 2024dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 20259752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 20269752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 2027d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2028d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 20299752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 20309752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 20319752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 20321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 20339752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 2034d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 2035f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 2036f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfType *tot = new (*this,8) TypeOfType(tofType, Canonical); 20379752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 20389752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 2039d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2040d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 204160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 204260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 204360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 2044a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 2045a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 20461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 204760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 204860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 204960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 205060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 205160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 205260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 205360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 205460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 205560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 205660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 205760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 205860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 205960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 206060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 206160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 20621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 206360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 20641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 206660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 206760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 206860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 20691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 207060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 207160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 207260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 2073395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 2074395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 2075395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 20761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 2077395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 2078395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 2079dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor DecltypeType *dt; 20809d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (e->isTypeDependent()) { 20819d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor llvm::FoldingSetNodeID ID; 20829d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType::Profile(ID, *this, e); 20831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20849d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor void *InsertPos = 0; 20859d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType *Canon 20869d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); 20879d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (Canon) { 20889d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // We already have a "canonical" version of an equivalent, dependent 20899d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // decltype type. Use that as our canonical type. 20909d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor dt = new (*this, 8) DecltypeType(e, DependentTy, 20919d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor QualType((DecltypeType*)Canon, 0)); 20929d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 20939d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor else { 20949d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // Build a new, canonical typeof(expr) type. 20959d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor Canon = new (*this, 8) DependentDecltypeType(*this, e); 20969d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeTypes.InsertNode(Canon, InsertPos); 20979d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor dt = Canon; 20989d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 20999d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } else { 2100dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType T = getDecltypeForExpr(e, *this); 21011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump dt = new (*this, 8) DecltypeType(e, T, getCanonicalType(T)); 2102dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 2103395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 2104395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 2105395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 2106395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 21075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 21085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 2109e607ed068334bacb8d7b093996b4671c6ca79e25Mike StumpQualType ASTContext::getTagDeclType(const TagDecl *Decl) { 2110d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 2111e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // FIXME: What is the design on getTagDeclType when it requires casting 2112e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // away const? mutable? 2113e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump return getTypeDeclType(const_cast<TagDecl*>(Decl)); 21145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 21155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 21161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 21171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 21181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// needs to agree with the definition in <stddef.h>. 21195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 2120b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 21215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 21225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 212364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 212464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 212564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 212664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 212764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 212864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 212964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 213064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 213164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 213264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 213364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 213464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 213564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 213664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 21378b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 21388b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 21398b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 2140b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 21418b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 21428b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 2143e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2144e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 2145e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2146e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 214777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 214877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 214977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 215077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 215177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 215277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 215350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas GregorCanQualType ASTContext::getCanonicalType(QualType T) { 215477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 21551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2156c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 2157c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 21581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (TypeQuals == 0) 215950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(CanType); 2160c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2161c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 2162c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 2163c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 2164c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 216550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(CanType.getQualifiedType(TypeQuals)); 21661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2167c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2168c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 2169c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 2170c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 21711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2172c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 217350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 217450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getConstantArrayType(NewEltTy, CAT->getSize(), 217550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor CAT->getSizeModifier(), 217650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor CAT->getIndexTypeQualifier())); 2177c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 217850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 217950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 218050d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor IAT->getIndexTypeQualifier())); 21811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2182898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 218350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 218450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getDependentSizedArrayType(NewEltTy, 2185bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2186bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 218750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getSizeModifier(), 218850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getIndexTypeQualifier(), 218950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getBracketsRange())); 2190898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2191c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 219250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(getVariableArrayType(NewEltTy, 2193bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 2194bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr()->Retain() : 0, 219550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getSizeModifier(), 219650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getIndexTypeQualifier(), 219750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getBracketsRange())); 2198c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 2199c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 220025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 220125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 220225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 220325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 220497fbaa2a38804268a024f1a104b43fcf8b4411b0Argyrios Kyrtzidis return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); 220525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 22061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If this template name refers to a set of overloaded function templates, 2207d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor /// the canonical template name merely stores the set of function templates. 22086ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (OverloadedFunctionDecl *Ovl = Name.getAsOverloadedFunctionDecl()) { 22096ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor OverloadedFunctionDecl *CanonOvl = 0; 22106ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor for (OverloadedFunctionDecl::function_iterator F = Ovl->function_begin(), 22116ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor FEnd = Ovl->function_end(); 22126ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor F != FEnd; ++F) { 22136ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor Decl *Canon = F->get()->getCanonicalDecl(); 22146ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (CanonOvl || Canon != F->get()) { 22156ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (!CanonOvl) 22161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CanonOvl = OverloadedFunctionDecl::Create(*this, 22171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Ovl->getDeclContext(), 22186ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor Ovl->getDeclName()); 22191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22206ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor CanonOvl->addOverload( 22216ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor AnyFunctionDecl::getFromNamedDecl(cast<NamedDecl>(Canon))); 22226ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 22236ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 22241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22256ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor return TemplateName(CanonOvl? CanonOvl : Ovl); 22266ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 22271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 222825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 222925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 223025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 223125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 223225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 22331eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateArgument 22341275ae098acda31fe0e434510c729fcfed0458a1Douglas GregorASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) { 22351275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor switch (Arg.getKind()) { 22361275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Null: 22371275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 22381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22391275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Expression: 22401275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Build canonical expression? 22411275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 22421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22431275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Declaration: 22441275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(SourceLocation(), 22451275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Arg.getAsDecl()->getCanonicalDecl()); 22461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22471275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Integral: 22481275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(SourceLocation(), 22491275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor *Arg.getAsIntegral(), 22501275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getIntegralType())); 22511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22521275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Type: 22531275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(SourceLocation(), 22541275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getAsType())); 22551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22561275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Pack: { 22571275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Allocate in ASTContext 22581275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument *CanonArgs = new TemplateArgument[Arg.pack_size()]; 22591275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor unsigned Idx = 0; 22601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (TemplateArgument::pack_iterator A = Arg.pack_begin(), 22611275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor AEnd = Arg.pack_end(); 22621275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor A != AEnd; (void)++A, ++Idx) 22631275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs[Idx] = getCanonicalTemplateArgument(*A); 22641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22651275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument Result; 22661275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Result.setArgumentPack(CanonArgs, Arg.pack_size(), false); 22671275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Result; 22681275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 22691275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 22701275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 22711275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Silence GCC warning 22721275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor assert(false && "Unhandled template argument kind"); 22731275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(); 22741275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor} 22751275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 2276d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 2277d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 22781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!NNS) 2279d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2280d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2281d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 2282d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 2283d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 22841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 2285d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 2286d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 2287d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2288d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 2289d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 2290d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 2291d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 2292d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2293d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 2294d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 2295d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 22961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 0, 22971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 2298d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 2299d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2300d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2301d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 2302d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 2303d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2304d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2305d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2306d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2307d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2308d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2309d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2310c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2311c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2312c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 2313c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 2314c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2315c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2316c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2317c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 23181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2319c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 2320c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 23211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2322f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Make sure to look through type qualifiers (like ExtQuals) for the negative 2323c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 2324c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 2325c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 2326c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 23271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2328c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 2329c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2330c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 23311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2332c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2333c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 233450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor // we must propagate them down into the element type. 2335c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 2336c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 2337c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 23381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2339f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Rip through ExtQualType's and typedefs to get to a concrete type. 2340c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 2341f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(Ty)) { 2342f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian AddrSpace = EXTQT->getAddressSpace(); 2343f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Ty = EXTQT->getBaseType(); 2344c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 2345c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 2346c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 2347c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 2348c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 2349c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 2350c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 2351c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 23521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2353c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2354c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 2355c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 2356c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 23571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2358c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2359c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2360c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2361c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 2362c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 2363c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 2364f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian NewEltTy = getAddrSpaceQualType(NewEltTy, AddrSpace); 2365c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 23661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2367c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2368c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2369c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 2370c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 2371c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2372c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2373c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 23747e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor IAT->getIndexTypeQualifier())); 2375898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 23761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const DependentSizedArrayType *DSAT 2377898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2378898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 23791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getDependentSizedArrayType(NewEltTy, 2380bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2381bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 2382898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 23837e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getIndexTypeQualifier(), 23847e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 23851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2386c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 23877e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 2388bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 2389bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr()->Retain() : 0, 2390c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 23917e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getIndexTypeQualifier(), 23927e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 239377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 239477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 239577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2396e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2397e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2398e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2399e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2400e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2401e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2402e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2403c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2404c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2405c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2406c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2407c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2408c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 24091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2410c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2411e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2412e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 2413c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 2414e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2415e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 24165e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas GregorQualType ASTContext::getBaseElementType(QualType QT) { 24175e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QualifierSet qualifiers; 24185e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor while (true) { 24195e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor const Type *UT = qualifiers.strip(QT); 24205e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor if (const ArrayType *AT = getAsArrayType(QualType(UT,0))) { 24215e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QT = AT->getElementType(); 24226dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump } else { 24235e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor return qualifiers.apply(QT, *this); 24245e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 24255e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 24265e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor} 24275e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor 2428d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel DunbarQualType ASTContext::getBaseElementType(const VariableArrayType *VAT) { 24296183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson QualType ElemTy = VAT->getElementType(); 24301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24316183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson if (const VariableArrayType *VAT = getAsVariableArrayType(ElemTy)) 24326183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return getBaseElementType(VAT); 24331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24346183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 24356183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 24366183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 24370de78998e7bda473b408437053e48661b510d453Fariborz Jahanian/// getConstantArrayElementCount - Returns number of constant array elements. 24381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpuint64_t 24390de78998e7bda473b408437053e48661b510d453Fariborz JahanianASTContext::getConstantArrayElementCount(const ConstantArrayType *CA) const { 24400de78998e7bda473b408437053e48661b510d453Fariborz Jahanian uint64_t ElementCount = 1; 24410de78998e7bda473b408437053e48661b510d453Fariborz Jahanian do { 24420de78998e7bda473b408437053e48661b510d453Fariborz Jahanian ElementCount *= CA->getSize().getZExtValue(); 24430de78998e7bda473b408437053e48661b510d453Fariborz Jahanian CA = dyn_cast<ConstantArrayType>(CA->getElementType()); 24440de78998e7bda473b408437053e48661b510d453Fariborz Jahanian } while (CA); 24450de78998e7bda473b408437053e48661b510d453Fariborz Jahanian return ElementCount; 24460de78998e7bda473b408437053e48661b510d453Fariborz Jahanian} 24470de78998e7bda473b408437053e48661b510d453Fariborz Jahanian 24485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 24495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2450a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2451ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 24525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2453a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2454d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel Dunbar assert(T->getAsBuiltinType() && "getFloatingRank(): not a floating type"); 2455ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 2456a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 24575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 24585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 24595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 24605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 24625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 24641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// point or a complex type (based on typeDomain/typeSize). 2465716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2466716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 24671361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 24681361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 24691361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 24701361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 24711361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2472716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2473f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2474f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2475f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2476f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2477f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 24781361b11066239ea15764a2a844405352d87296b3Chris Lattner 24791361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 24801361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 24811361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 24821361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 24831361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 24841361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 24855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 24875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 24897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 24907cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 24911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 2492a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2493a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2494a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 24951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2496a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2497fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2498a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2499fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2500fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 25015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 25025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2503f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2504f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2505f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2506f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2507f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 2508f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2509f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman T = ET->getDecl()->getIntegerType().getTypePtr(); 2510f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2511a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2512a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2513a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2514f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2515f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2516f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2517f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2518f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2519f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2520f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 2521f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 2522f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 25231b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) 2524f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 2525f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2526f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 25277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 25287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2529f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 25307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 25317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 25327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 25337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2534f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 25357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 25367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2537f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 25387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 25397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2540f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 25417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 25427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2543f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 25447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 25457cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2546f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 25472df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 25482df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 25492df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2550f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2551f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2552f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 255304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \brief Whether this is a promotable bitfield reference according 255404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// to C99 6.3.1.1p2, bullet 2 (and GCC extensions). 255504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// 255604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \returns the type this bit-field will promote to, or NULL if no 255704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// promotion occurs. 255804e8357f6801e9ff52673e7e899a67bbabf9de93Eli FriedmanQualType ASTContext::isPromotableBitField(Expr *E) { 255904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman FieldDecl *Field = E->getBitField(); 256004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (!Field) 256104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 256204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 256304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman QualType FT = Field->getType(); 256404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 256504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman llvm::APSInt BitWidthAP = Field->getBitWidth()->EvaluateAsInt(*this); 256604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t BitWidth = BitWidthAP.getZExtValue(); 256704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 256804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // GCC extension compatibility: if the bit-field size is less than or equal 256904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // to the size of int, it gets promoted no matter what its type is. 257004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // For instance, unsigned long bf : 4 gets promoted to signed int. 257104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth < IntSize) 257204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return IntTy; 257304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 257404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth == IntSize) 257504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return FT->isSignedIntegerType() ? IntTy : UnsignedIntTy; 257604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 257704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // Types bigger than int are not subject to promotions, and therefore act 257804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // like the base type. 257904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // FIXME: This doesn't quite match what gcc does, but what gcc does here 258004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // is ridiculous. 258104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 258204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman} 258304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 2584a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// getPromotedIntegerType - Returns the type that Promotable will 2585a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// promote to: C99 6.3.1.1p2, assuming that Promotable is a promotable 2586a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// integer type. 2587a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType ASTContext::getPromotedIntegerType(QualType Promotable) { 2588a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(!Promotable.isNull()); 2589a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isPromotableIntegerType()); 2590a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (Promotable->isSignedIntegerType()) 2591a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return IntTy; 2592a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t PromotableSize = getTypeSize(Promotable); 2593a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 2594a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize); 2595a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return (PromotableSize != IntSize) ? IntTy : UnsignedIntTy; 2596a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 2597a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 25981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getIntegerTypeOrder - Returns the highest ranked integer type: 25997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 26001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 26017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2602f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2603f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 26047cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 26051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2606f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2607f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 26081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 26107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 26111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 26137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 26147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 26157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 26161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 26187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 26197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 26207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 26217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 26221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 26247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 26251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 26267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 26277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 26287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 26297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 26307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 26317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 26321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 26347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 26351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 26367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 26375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 263871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 26391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// getCFConstantStringType - Return the type used for constant CFStrings. 264071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 264171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 26421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CFConstantStringTypeDecl = 26431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2644df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 2645f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 26461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 264771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 26481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 2649f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2650f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 265171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 26521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 265371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 26541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[3] = LongTy; 26551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 265644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 265744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 26581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 265944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 2660a1d5662d96465f0fddf8819d245da4d19b892effArgyrios Kyrtzidis FieldTypes[i], /*DInfo=*/0, 26611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 26624afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 266317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 266444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 266544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 266644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 266771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 26681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 266971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 26708467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2671b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2672319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 26736217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2674319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2675319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2676319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2677319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 26781eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getObjCFastEnumerationStateType() { 2679bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 268044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 268144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 268244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 26831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2684bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2685bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2686de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff getPointerType(ObjCIdTypedefType), 2687bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2688bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2689bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2690bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 26911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 269244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 26931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, 26941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCFastEnumerationStateTypeDecl, 26951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation(), 0, 2696a1d5662d96465f0fddf8819d245da4d19b892effArgyrios Kyrtzidis FieldTypes[i], /*DInfo=*/0, 26971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 26984afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 269917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 270044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 27011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 270244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2703bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 27041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2705bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2706bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2707bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2708319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 27096217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2710319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 2711319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 2712319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2713319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2714e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 2715e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 27162d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 2717e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 2718bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 2719bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 27201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 272185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 272285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 272385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2724a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 272533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 2726a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 272798be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 27281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 272933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 273033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 273198be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 273233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 273333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 273498be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 273598be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 273633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 273733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2738a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 273933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 27401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 2741e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2742c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2743ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 2744a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 274533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 27460d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 274733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 274833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 274933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 275033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 275198be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 275233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 275333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 275433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 275589951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 275689951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 275789951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 275889951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 2759a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 276033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 276133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 276233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 276333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 276433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 27651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 276633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 276733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 276889951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 276989951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 277089951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 27711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType PType = PVDecl->getOriginalType(); 27724306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 2773ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 2774ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 2775ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 2776bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 2777ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2778ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 2779ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2780ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 278133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 27824306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 27830d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 278433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 2785a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 278633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 278733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 278833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2789c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 279083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 2791c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 2792c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 27931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Property attributes are stored as a comma-delimited C string. The simple 27941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// attributes readonly and bycopy are encoded as single characters. The 27951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parametrized attributes, getter=name, setter=name, and ivar=name, are 27961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// encoded as single characters, followed by an identifier. Property types 27971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// are also encoded as a parametrized attribute. The characters used to encode 279883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 279983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 280083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 280183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 280283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 280383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 280483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 280583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 280683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 280783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 280883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 280983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 281083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 281183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 281283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 281383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 28141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 2815c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 2816e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2817c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 2818c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 2819c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 2820c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2821c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 2822c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 28231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCCategoryImplDecl *CID = 2824c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 2825c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 282617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 2827653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2828c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2829c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2830c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2831c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2832c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2833c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2834c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2835c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2836c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2837c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 283861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 2839c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 284017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 2841653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2842c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2843c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2844c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2845c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2846c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2847c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2848c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2849c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 28501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 2851c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2852c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2853c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2854c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2855c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 2856c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2857c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 2858090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 2859090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 28601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 2861090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 2862090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 2863c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2864c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 2865c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 2866c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2867c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 2868c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 2869c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 28701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case ObjCPropertyDecl::Retain: S += ",&"; break; 2871c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2872c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2873c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2874c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 2875c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 2876c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 2877c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 2878c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2879090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 2880090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 28811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2882c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 2883c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 2884077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 2885c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2886c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2887c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 2888c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 2889077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 2890c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2891c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2892c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 2893c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 2894c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 289539f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 2896c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2897c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2898c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 2899c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 2900c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2901a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 29021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Another legacy compatibility encoding: 32-bit longs are encoded as 29031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 'l' or 'L' , but not always. For typedefs, we need to use 2904a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 2905a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 2906a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 29078e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(PointeeTy.getTypePtr())) { 2908a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (const BuiltinType *BT = PointeeTy->getAsBuiltinType()) { 2909c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 2910c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2911a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 29121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else 2913c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 2914c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2915a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 2916a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2917a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2918a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 2919a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 29207d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 2921153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 292282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 292382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 292482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 292582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 29261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(T, S, true, true, Field, 29275b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 292882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 292982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 29301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void EncodeBitField(const ASTContext *Context, std::string& S, 2931153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 29328b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 29338b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 29348b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 29359a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 29368b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 29378b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 29388b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 29398b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 294082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 294182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 294282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 2943153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 2944090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 29456ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 2946e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 2947ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD && FD->isBitField()) 2948ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return EncodeBitField(this, S, FD); 2949ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner char encoding; 2950ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner switch (BT->getKind()) { 29511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: assert(0 && "Unhandled builtin type kind"); 2952ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 2953ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 2954ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_U: 2955ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 2956ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 2957ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 29581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::ULong: 29591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 29601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 296172696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 2962ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 2963ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 2964ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_S: 2965ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 2966ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Short: encoding = 's'; break; 2967ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 29681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::Long: 29691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 29701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 2971ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner break; 2972ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 2973ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 2974ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 2975ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 2976ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 297743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 29781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2979ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += encoding; 2980ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2981ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 29821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2983ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ComplexType *CT = T->getAsComplexType()) { 2984c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 29851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 2986c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 2987ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 2988ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 29891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29906217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const PointerType *PT = T->getAs<PointerType>()) { 299185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 2992a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 2993a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 2994a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 2995a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 29961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Also, do not emit the 'r' for anything but the outermost type! 29978e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(T.getTypePtr())) { 2998a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 2999a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3000a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3001a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 30029fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (OutermostType) { 3003a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 30046217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek while (P->getAs<PointerType>()) 30056217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek P = P->getAs<PointerType>()->getPointeeType(); 3006a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 3007a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3008a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3009a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3010a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3011a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 3012a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 3013a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 3014a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 3015a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 3016a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 3017a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 3018a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 3019a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 3020a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3021a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 302214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (isObjCSelType(PointeeTy)) { 30238baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 30248baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 3025c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 30261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 302785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 302885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 302985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 3030e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 303185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 303285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 303385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 30346217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek } else if (const RecordType *RTy = PointeeTy->getAs<RecordType>()) { 30359533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_class *" to "#". 30369533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { 30379533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '#'; 30389533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 30399533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 30409533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_object *" to "@". 30419533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { 30429533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '@'; 30439533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 30449533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 30459533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // fall through... 304685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 304785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 3048a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 3049a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 30501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 305143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 3052ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3053ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 30541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3055ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ArrayType *AT = 3056ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Ignore type qualifiers etc. 3057ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 3058559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 3059559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 3060559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 3061559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 30621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3063559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3064559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 3065559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 30661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3067559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 3068559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 3069559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 3070559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 3071559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 3072559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 3073559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 30741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3076559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3077559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 3078559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 3079ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3080ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 30811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3082ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->getAsFunctionType()) { 3083c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 3084ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3085ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 30861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30876217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *RTy = T->getAs<RecordType>()) { 308882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 3089d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 3090502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 3091502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 3092502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 3093502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 3094502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 3095502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 30960d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 30977d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 309817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 309917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 310044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 310143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 3102d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 310344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 3104d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 3105d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 31061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3107d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 310843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 31091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 311043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 3111d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 3112a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 3113a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 31141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(qt, S, false, true, 311543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 3116d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 31177d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 31186de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 3119d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 3120ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3121ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 31221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3123ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isEnumeralType()) { 31248b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 31258b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 31268b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 31278b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 3128ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3129ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 31301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3131ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isBlockPointerType()) { 313221a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 3133ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3134ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 31351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3136ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isObjCInterfaceType()) { 313743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 313843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 313943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 314043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 314143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 314243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 3143f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 314443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 3145f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 314643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 31471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 314843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 314943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 31501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 315143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 315243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 315343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 3154ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 315543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 31561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3157ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ObjCObjectPointerType *OPT = T->getAsObjCObjectPointerType()) { 315814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (OPT->isObjCIdType()) { 315914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '@'; 316014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3161ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 31621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3163ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCClassType()) { 316414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '#'; 316514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3166ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 31671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3168ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCQualifiedIdType()) { 31691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(getObjCIdType(), S, 317014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandPointedToStructures, 317114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandStructures, FD); 317214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (FD || EncodingProperty) { 317314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Note that we do extended encoding of protocol qualifer list 317414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Only when doing ivar or property encoding. 317514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 317667ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 317767ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 317814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '<'; 317914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += (*I)->getNameAsString(); 318014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '>'; 318114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 318214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 318314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 318414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3185ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 31861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3187ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner QualType PointeeTy = OPT->getPointeeType(); 3188ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (!EncodingProperty && 3189ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner isa<TypedefType>(PointeeTy.getTypePtr())) { 3190ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Another historical/compatibility reason. 31911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We encode the underlying type which comes out as 3192ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // {...}; 3193ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '^'; 31941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, 31951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump false, ExpandPointedToStructures, 3196ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner NULL); 319714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 319814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 3199ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3200ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '@'; 3201ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD || EncodingProperty) { 3202ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 320367ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff S += OPT->getInterfaceDecl()->getNameAsCString(); 320467ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 320567ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 3206ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '<'; 3207ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += (*I)->getNameAsString(); 3208ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '>'; 32091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3210ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 3211ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3212ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3213ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 32141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3215ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner assert(0 && "@encode for type not implemented!"); 321685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 321785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 32181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 3219ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 3220ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 3221ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 3222ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 3223ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 3224ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 3225ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 3226ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 3227ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 3228ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 3229ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 3230ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 3231ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 3232ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 3233ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 3234ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setBuiltinVaListType(QualType T) { 3235b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 32361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3237b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 3238b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 3239b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3240ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCIdType(QualType T) { 3241de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = T; 32427e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 32437e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 3244ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCSelType(QualType T) { 3245319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCSelType = T; 3246319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3247319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 3248319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 3249319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 3250319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 3251b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3252b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 32536217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *ptr = TD->getUnderlyingType()->getAs<PointerType>(); 3254c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 3255c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 3256b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 3257c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 3258c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 3259b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 3260b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 3261b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3262ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCProtoType(QualType QT) { 3263a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 3264390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 3265390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 3266ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCClassType(QualType T) { 3267de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = T; 32688baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 32698baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3270a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 32711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(ObjCConstantStringType.isNull() && 32722198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 32731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3274a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 32752198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 32762198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 32777532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a qualified 32787532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c std::vector. 32791eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 32807532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool TemplateKeyword, 32817532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateDecl *Template) { 32827532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 32837532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 32847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 32857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 32867532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName *QTN = 32877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 32887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (!QTN) { 32897532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 32907532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 32917532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 32927532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 32937532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 32947532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 32957532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3296d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// \brief Retrieve the template name that represents a qualified 3297d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// template name such as \c std::vector. 32981eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 3299d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor bool TemplateKeyword, 3300d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor OverloadedFunctionDecl *Template) { 3301d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor llvm::FoldingSetNodeID ID; 3302d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 33031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3304d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor void *InsertPos = 0; 3305d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName *QTN = 3306d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3307d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor if (!QTN) { 3308d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 3309d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 3310d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor } 33111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3312d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor return TemplateName(QTN); 3313d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor} 3314d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 33157532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 33167532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 33171eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 33187532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 33191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((!NNS || NNS->isDependent()) && 33203b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor "Nested name specifier must be dependent"); 33217532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 33227532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 33237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 33247532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 33257532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 33267532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 33277532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 33287532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 33297532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 33307532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 33317532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 33327532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 33337532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 33347532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 33357532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 33367532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 33377532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 33387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 33397532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 33407532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 33417532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 33427532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 33437532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3344b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 3345d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 3346d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 3347d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 3348b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 33491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case TargetInfo::NoInt: return QualType(); 3350b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 3351b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 3352b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 3353b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 3354b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 3355b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 3356b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 3357b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 3358b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 3359b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 3360b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 3361b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 3362b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 3363b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3364b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3365b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 3366b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3367b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3368fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 3369fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 3370fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 3371f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff/// FIXME: Move to Type. 3372fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 3373fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 3374fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 3375fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 337640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 3377fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 3378fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 33791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return false; 3380fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 3381fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 33824fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 33834fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 33844fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 33854fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz JahanianQualType::GCAttrTypes ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 3386b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttrs = QualType::GCNone; 33874fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 33884fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 3389b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 33904fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 33911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // (or pointers to them) be treated as though they were declared 3392a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 3393a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (GCAttrs == QualType::GCNone) { 3394f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff if (Ty->isObjCObjectPointerType()) 3395a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian GCAttrs = QualType::Strong; 3396a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 33976217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek return getObjCGCAttrKind(Ty->getAs<PointerType>()->getPointeeType()); 3398a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 3399c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 3400c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 3401f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 3402c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian return QualType::GCNone; 34034fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 3404b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 34054fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 34064fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 34076ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 34086ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 34096ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 3410770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 34111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// areCompatVectorTypes - Return true if the two specified vector types are 34126ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 34136ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 34146ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 34156ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 34166ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 341761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 34186ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 34196ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 34204084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 34214084c306635b70f37029dca938444e6013f08684Steve Naroff// ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. 34224084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 34234084c306635b70f37029dca938444e6013f08684Steve Naroff 34244084c306635b70f37029dca938444e6013f08684Steve Naroff/// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the 34254084c306635b70f37029dca938444e6013f08684Steve Naroff/// inheritance hierarchy of 'rProto'. 34260fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanianbool ASTContext::ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, 34270fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian ObjCProtocolDecl *rProto) { 34284084c306635b70f37029dca938444e6013f08684Steve Naroff if (lProto == rProto) 342914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return true; 34304084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCProtocolDecl::protocol_iterator PI = rProto->protocol_begin(), 34314084c306635b70f37029dca938444e6013f08684Steve Naroff E = rProto->protocol_end(); PI != E; ++PI) 34324084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 34334084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 34344084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 34354084c306635b70f37029dca938444e6013f08684Steve Naroff} 343614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 34374084c306635b70f37029dca938444e6013f08684Steve Naroff/// QualifiedIdConformsQualifiedId - compare id<p,...> with id<p1,...> 34384084c306635b70f37029dca938444e6013f08684Steve Naroff/// return true if lhs's protocols conform to rhs's protocol; false 34394084c306635b70f37029dca938444e6013f08684Steve Naroff/// otherwise. 34404084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::QualifiedIdConformsQualifiedId(QualType lhs, QualType rhs) { 34414084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isObjCQualifiedIdType() && rhs->isObjCQualifiedIdType()) 34424084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(lhs, rhs, false); 34434084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 34444084c306635b70f37029dca938444e6013f08684Steve Naroff} 34454084c306635b70f37029dca938444e6013f08684Steve Naroff 34464084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an 34474084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIDType. 34484084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::ObjCQualifiedIdTypesAreCompatible(QualType lhs, QualType rhs, 34494084c306635b70f37029dca938444e6013f08684Steve Naroff bool compare) { 34504084c306635b70f37029dca938444e6013f08684Steve Naroff // Allow id<P..> and an 'id' or void* type in all cases. 34511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isVoidPointerType() || 34524084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->isObjCIdType() || lhs->isObjCClassType()) 34534084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 34541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else if (rhs->isVoidPointerType() || 34554084c306635b70f37029dca938444e6013f08684Steve Naroff rhs->isObjCIdType() || rhs->isObjCClassType()) 34564084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 34574084c306635b70f37029dca938444e6013f08684Steve Naroff 34584084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsQID = lhs->getAsObjCQualifiedIdType()) { 34594084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsOPT = rhs->getAsObjCObjectPointerType(); 34601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34614084c306635b70f37029dca938444e6013f08684Steve Naroff if (!rhsOPT) return false; 34621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34634084c306635b70f37029dca938444e6013f08684Steve Naroff if (rhsOPT->qual_empty()) { 34641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a unqualified interface pointer "NSString*", 34654084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 34664084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 34674084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 34684084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 34694084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 34704084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 34714084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 34720fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (!rhsID->ClassImplementsProtocol(*I, true)) 34734084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 34744084c306635b70f37029dca938444e6013f08684Steve Naroff } 34754084c306635b70f37029dca938444e6013f08684Steve Naroff } 34764084c306635b70f37029dca938444e6013f08684Steve Naroff // If there are no qualifiers and no interface, we have an 'id'. 34774084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 34784084c306635b70f37029dca938444e6013f08684Steve Naroff } 34791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 34804084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 34814084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 34824084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 34834084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 3484de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 3485de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // when comparing an id<P> on lhs with a static type on rhs, 3486de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // see if static class implements all of id's protocols, directly or 3487de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // through its super class and categories. 34884084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsOPT->qual_begin(), 34894084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsOPT->qual_end(); J != E; ++J) { 34904084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 34914084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 34924084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 34934084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 34948f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 34958f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 3496de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 34971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a qualified interface pointer "NSString<P>*", 34984084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 34994084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 35004084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 35014084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 35024084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 35034084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 35044084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 35050fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (rhsID->ClassImplementsProtocol(*I, true)) { 35064084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 35074084c306635b70f37029dca938444e6013f08684Steve Naroff break; 35084084c306635b70f37029dca938444e6013f08684Steve Naroff } 35094084c306635b70f37029dca938444e6013f08684Steve Naroff } 35104084c306635b70f37029dca938444e6013f08684Steve Naroff } 35114084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 3512de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return false; 3513de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 35141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3515de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return true; 3516de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 35171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35184084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsQID = rhs->getAsObjCQualifiedIdType(); 35194084c306635b70f37029dca938444e6013f08684Steve Naroff assert(rhsQID && "One of the LHS/RHS should be id<x>"); 35204084c306635b70f37029dca938444e6013f08684Steve Naroff 35211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCObjectPointerType *lhsOPT = 35224084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->getAsObjCInterfacePointerType()) { 35234084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhsOPT->qual_empty()) { 35244084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 35254084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *lhsID = lhsOPT->getInterfaceDecl()) { 35264084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = rhsQID->qual_begin(), 35274084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); I != E; ++I) { 35284084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 35294084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 35304084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 35310fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (lhsID->ClassImplementsProtocol(*I, true)) { 35324084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 35334084c306635b70f37029dca938444e6013f08684Steve Naroff break; 35344084c306635b70f37029dca938444e6013f08684Steve Naroff } 35354084c306635b70f37029dca938444e6013f08684Steve Naroff } 35364084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 35374084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 35384084c306635b70f37029dca938444e6013f08684Steve Naroff } 35394084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 35404084c306635b70f37029dca938444e6013f08684Steve Naroff } 35411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 35424084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsOPT->qual_begin(), 35434084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsOPT->qual_end(); I != E; ++I) { 35444084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 35454084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 35464084c306635b70f37029dca938444e6013f08684Steve Naroff 35474084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 35484084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 35494084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 35504084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsQID->qual_begin(), 35514084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); J != E; ++J) { 35524084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 35534084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 35544084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 35554084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 35564084c306635b70f37029dca938444e6013f08684Steve Naroff break; 35574084c306635b70f37029dca938444e6013f08684Steve Naroff } 35584084c306635b70f37029dca938444e6013f08684Steve Naroff } 35594084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 35604084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 35614084c306635b70f37029dca938444e6013f08684Steve Naroff } 35624084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 35634084c306635b70f37029dca938444e6013f08684Steve Naroff } 35644084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 35654084c306635b70f37029dca938444e6013f08684Steve Naroff} 35664084c306635b70f37029dca938444e6013f08684Steve Naroff 35674084c306635b70f37029dca938444e6013f08684Steve Naroff/// canAssignObjCInterfaces - Return true if the two interface types are 35684084c306635b70f37029dca938444e6013f08684Steve Naroff/// compatible for assignment from RHS to LHS. This handles validation of any 35694084c306635b70f37029dca938444e6013f08684Steve Naroff/// protocol qualifiers on the LHS or RHS. 35704084c306635b70f37029dca938444e6013f08684Steve Naroff/// 35714084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 35724084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *RHSOPT) { 35734084c306635b70f37029dca938444e6013f08684Steve Naroff // If either type represents the built-in 'id' or 'Class' types, return true. 35744084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCBuiltinType() || RHSOPT->isObjCBuiltinType()) 35754084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 35764084c306635b70f37029dca938444e6013f08684Steve Naroff 35774084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 35781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 35791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType(RHSOPT,0), 35804084c306635b70f37029dca938444e6013f08684Steve Naroff false); 35814084c306635b70f37029dca938444e6013f08684Steve Naroff 35824084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 35834084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 35844084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHS && RHS) // We have 2 user-defined types. 35854084c306635b70f37029dca938444e6013f08684Steve Naroff return canAssignObjCInterfaces(LHS, RHS); 35861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35874084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 358814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 358914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 35903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 35913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 35926ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 35936ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 35946ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 35956ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 35961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35976ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 35986ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 3599c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (LHS->getNumProtocols() == 0) 36006ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 36011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36026ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 36036ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 3604c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (RHS->getNumProtocols() == 0) 36056ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 36061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3607c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator LHSPI = LHS->qual_begin(), 3608c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff LHSPE = LHS->qual_end(); 360991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 361091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 361191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 361291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 361391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 3614c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator RHSPI = RHS->qual_begin(), 36154084c306635b70f37029dca938444e6013f08684Steve Naroff RHSPE = RHS->qual_end(); 36168f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff RHSPI != RHSPE; RHSPI++) { 36178f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 361891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 36198f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 36208f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 362191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 362291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 362391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 362491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 362591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 362691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 362791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 36286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 36296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 3630389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 3631389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 363214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCObjectPointerType *LHSOPT = LHS->getAsObjCObjectPointerType(); 363314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff const ObjCObjectPointerType *RHSOPT = RHS->getAsObjCObjectPointerType(); 36341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 363514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (!LHSOPT || !RHSOPT) 3636389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 363714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 363814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 363914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff canAssignObjCInterfaces(RHSOPT, LHSOPT); 3640389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 3641389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 36421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 3643ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 36441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C99 6.2.7p1: Two types have compatible types if their types are the 3645ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 36463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 36473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 36483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 36493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 36503d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 36513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 36523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 365372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 365472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 36553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 36563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 36573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 36583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 36593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 36603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 366161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 366261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 366361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 366461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 36656dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump // FIXME: double check this 36662455636163fdd18581d7fdae816433f886d88213Mike Stump bool NoReturn = lbase->getNoReturnAttr() || rbase->getNoReturnAttr(); 36672455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != lbase->getNoReturnAttr()) 36682455636163fdd18581d7fdae816433f886d88213Mike Stump allLTypes = false; 36692455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != rbase->getNoReturnAttr()) 36702455636163fdd18581d7fdae816433f886d88213Mike Stump allRTypes = false; 36711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 3673465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 3674465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 36753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 36763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 36773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 36783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 36793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 36803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 36813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 36823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 36833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 36843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 36853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 36867fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 36877fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 36887fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 36893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 36903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 36913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 36923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 36933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 36943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 36953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 36963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 369761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 369861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 369961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 370061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 37013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 37023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 37033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 37043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 37052455636163fdd18581d7fdae816433f886d88213Mike Stump lproto->isVariadic(), lproto->getTypeQuals(), 37062455636163fdd18581d7fdae816433f886d88213Mike Stump NoReturn); 37073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 37083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 37093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 37103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 37113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 371272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 37133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 3714465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 37153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 37163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 37173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 37183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 37193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 37203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 37213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 37223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 37233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 37243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 37253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 37263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 37273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 37283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 37293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 37303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 37313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 37322d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getNumArgs(), proto->isVariadic(), 37332d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getTypeQuals(), NoReturn); 37343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 37353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 37363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 37373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 37382455636163fdd18581d7fdae816433f886d88213Mike Stump return getFunctionNoProtoType(retType, NoReturn); 37393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 37403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 37413d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 374243d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 374343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 374443d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 37457c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 37467c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 37473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 37483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 37497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 37507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 37516217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RT = LHS->getAs<ReferenceType>()) 3752c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 37536217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RT = RHS->getAs<ReferenceType>()) 3754c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 37553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 37563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 37573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 37583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3759f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 37603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 37613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 37623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 37633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 37645a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Note that we handle extended qualifiers later, in the 37655a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // case for ExtQualType. 37665a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers()) 37673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 37683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3769852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 3770852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 3771f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 37721adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 37731adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 37741adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 37751adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 37764c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 377707d258756dc856c6987c394a0972884e6ed46765Eli Friedman // Strip off objc_gc attributes off the top level so they can be merged. 377807d258756dc856c6987c394a0972884e6ed46765Eli Friedman // This is a complete mess, but the attribute itself doesn't make much sense. 3779585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian if (RHSClass == Type::ExtQual) { 378007d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType::GCAttrTypes GCAttr = RHSCan.getObjCGCAttr(); 378107d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (GCAttr != QualType::GCNone) { 378286f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian QualType::GCAttrTypes GCLHSAttr = LHSCan.getObjCGCAttr(); 37831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // __weak attribute must appear on both declarations. 37841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // __strong attribue is redundant if other decl is an objective-c 378586f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // object pointer (or decorated with __strong attribute); otherwise 378686f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // issue error. 378786f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian if ((GCAttr == QualType::Weak && GCLHSAttr != GCAttr) || 378886f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian (GCAttr == QualType::Strong && GCLHSAttr != GCAttr && 378914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff !LHSCan->isObjCObjectPointerType())) 37908df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian return QualType(); 37911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 379207d258756dc856c6987c394a0972884e6ed46765Eli Friedman RHS = QualType(cast<ExtQualType>(RHS.getDesugaredType())->getBaseType(), 379307d258756dc856c6987c394a0972884e6ed46765Eli Friedman RHS.getCVRQualifiers()); 379407d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType Result = mergeTypes(LHS, RHS); 37958df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (!Result.isNull()) { 37968df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (Result.getObjCGCAttr() == QualType::GCNone) 37978df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = getObjCGCQualType(Result, GCAttr); 37988df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (Result.getObjCGCAttr() != GCAttr) 37998df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = QualType(); 38008df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian } 380107d258756dc856c6987c394a0972884e6ed46765Eli Friedman return Result; 380207d258756dc856c6987c394a0972884e6ed46765Eli Friedman } 3803585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian } 3804585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian if (LHSClass == Type::ExtQual) { 380507d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType::GCAttrTypes GCAttr = LHSCan.getObjCGCAttr(); 380607d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (GCAttr != QualType::GCNone) { 38078df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian QualType::GCAttrTypes GCRHSAttr = RHSCan.getObjCGCAttr(); 38088df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian // __weak attribute must appear on both declarations. __strong 38091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // __strong attribue is redundant if other decl is an objective-c 381086f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // object pointer (or decorated with __strong attribute); otherwise 381186f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian // issue error. 381286f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian if ((GCAttr == QualType::Weak && GCRHSAttr != GCAttr) || 381386f4385536a0b2202860ad4e20d84f9330b1a4f4Fariborz Jahanian (GCAttr == QualType::Strong && GCRHSAttr != GCAttr && 381414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff !RHSCan->isObjCObjectPointerType())) 38158df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian return QualType(); 38161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 381707d258756dc856c6987c394a0972884e6ed46765Eli Friedman LHS = QualType(cast<ExtQualType>(LHS.getDesugaredType())->getBaseType(), 381807d258756dc856c6987c394a0972884e6ed46765Eli Friedman LHS.getCVRQualifiers()); 381907d258756dc856c6987c394a0972884e6ed46765Eli Friedman QualType Result = mergeTypes(LHS, RHS); 38208df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (!Result.isNull()) { 38218df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian if (Result.getObjCGCAttr() == QualType::GCNone) 38228df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = getObjCGCQualType(Result, GCAttr); 38238df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian else if (Result.getObjCGCAttr() != GCAttr) 38248df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian Result = QualType(); 38258df7a28269a1c0f4444928d0baea402b410e95f1Fariborz Jahanian } 3826354e53da656237e25518b3fafa3bf84de6e6f57eEli Friedman return Result; 382707d258756dc856c6987c394a0972884e6ed46765Eli Friedman } 3828585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian } 3829585f7b2f5c818d7579cffc91590bdc9e3d8b645dFariborz Jahanian 38304c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 3831a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 3832a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 3833a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 3834a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 38351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3836213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 3837213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 3838213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 38391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38404e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 38414e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 38421adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 38431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // a signed integer type, or an unsigned integer type. 38443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 38453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 38463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 3847bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 38483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 38493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 38503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 3851bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 38521adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 38533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 3854ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 38553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 38564a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 38571adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 385872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 385972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 386072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 386172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 386272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 386372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 386472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 386572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 38667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 38677c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 386872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 386972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 387072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 387172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 387272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 387372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 387472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 387572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 387672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 387772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 387872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 38791adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 38803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 38813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 38826217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<PointerType>()->getPointeeType(); 38836217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<PointerType>()->getPointeeType(); 38843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 38853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 388607d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 388761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 388807d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 388961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 38903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 38913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 3892c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 3893c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 3894c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 38956217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<BlockPointerType>()->getPointeeType(); 38966217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<BlockPointerType>()->getPointeeType(); 3897c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 3898c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 3899c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 3900c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 3901c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 3902c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 3903c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 3904c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 39051adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 39063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 39073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 39083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 39093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 39103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 39113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 39133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 39143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 39153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 391661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 391761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 391861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 391961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 39203bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 39213bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 39223bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 39233bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 39243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 39253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 392661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 392761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 392861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 392961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 39303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 39313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 39323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 39333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 39343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 39353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 39363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 39373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 39383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 39393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 39403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 39413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 39423bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 39433bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 39447e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 39457e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 39463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 39471adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 39483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 394972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 395072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 39513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 39521adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 39533cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 39543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 395564cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 395664cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 395764cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 39583cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 39595a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 39603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 39613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 396261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 396361490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 39645fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 39655a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 39665a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 39675fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 39685fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 39695fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 39705fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 39715fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 39725fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 39733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 397461490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 397514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff case Type::ObjCObjectPointer: { 39761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (canAssignObjCInterfaces(LHS->getAsObjCObjectPointerType(), 397714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff RHS->getAsObjCObjectPointerType())) 397814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return LHS; 397914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 3980bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 398114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 39825a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 39835a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 39845a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 39855a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::ExtQual: 39865a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: ExtQual types can be compatible even if they're not 39875a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // identical! 39885a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 39895a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // First attempt at an implementation, but I'm not really sure it's 39905a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // right... 39915a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#if 0 39925a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* LQual = cast<ExtQualType>(LHSCan); 39935a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* RQual = cast<ExtQualType>(RHSCan); 39945a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LQual->getAddressSpace() != RQual->getAddressSpace() || 39955a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LQual->getObjCGCAttr() != RQual->getObjCGCAttr()) 39965a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 39975a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman QualType LHSBase, RHSBase, ResultType, ResCanUnqual; 39985a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LHSBase = QualType(LQual->getBaseType(), 0); 39995a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman RHSBase = QualType(RQual->getBaseType(), 0); 40005a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = mergeTypes(LHSBase, RHSBase); 40015a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (ResultType.isNull()) return QualType(); 40025a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResCanUnqual = getCanonicalType(ResultType).getUnqualifiedType(); 40035a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getUnqualifiedType() == ResCanUnqual) 40045a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return LHS; 40055a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (RHSCan.getUnqualifiedType() == ResCanUnqual) 40065a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return RHS; 40075a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getAddrSpaceQualType(ResultType, LQual->getAddressSpace()); 40085a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getObjCGCQualType(ResultType, LQual->getObjCGCAttr()); 40095a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType.setCVRQualifiers(LHSCan.getCVRQualifiers()); 40105a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return ResultType; 40115a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#endif 40127532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 40137532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 40147532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 40157532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 4016ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 401772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 401872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 4019ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 40207192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 40215426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 4022ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 4023ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 402488054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 4025ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 4026ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 4027ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 4028f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 4029f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 4030f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 4031f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 4032ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 4033ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4034ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 4035ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 4036ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 4037ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 4038ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 4039ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 4040ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 4041ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 4042ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 4043ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 4044ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 4045ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 4046ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 4047ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 4048ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 4049ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 4050ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 4051ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 4052ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 40532df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 40542df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 4055ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 4056ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 4057ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 4058ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 4059ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4060ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 40612cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 40622cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 40632cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 406486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 406586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 406686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 406786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 406886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 406986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 407086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 407186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 40721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 407386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 407486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 407586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 407686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 407786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 40781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 407986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 408086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 408186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 408286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 40831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: Done = true; --Str; break; 408486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 408586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 408686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 408786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 408886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 408986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 409086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 409186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 409286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 409386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 409486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 409586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 409686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 409786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 409886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 409986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 410086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 410186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 41021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 410386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 410486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 410586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 410686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 410786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 410886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 410986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 411086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 411186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 411286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 411386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 411486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 411586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 411686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 411786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 411886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 411986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 412086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 412186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 412286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 412386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 412486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 412586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 412686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 412786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 412886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 412986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 413086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 413186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 413286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 413386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 413486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 413586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 413686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 413786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 413886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 413986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 414086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 414186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 414286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 414386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 414486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 414586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 414686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 414786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 414886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 414986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 415086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 415186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 415286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 415386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 415486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 415586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 415686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 415786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 415886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 415986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 416086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 416186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 416286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 416386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 416486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 416586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 416686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 416786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 416886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 416986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 417086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 417186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 417286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 417386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 417486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 417586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 417686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 417786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 417886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 417986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 418086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 418186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 418286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 418386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 418486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 418586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 41861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 418786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 41881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 418986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 419086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getVectorType(ElementType, NumElements); 419186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 419286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 41939a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'P': 4194c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor Type = Context.getFILEType(); 4195c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor if (Type.isNull()) { 4196f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_stdio; 419786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 419886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4199fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 42009a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'J': 4201f711c41dd9412a8182793259d355c4f6979ed5edMike Stump if (Signed) 4202782fa308a765aeac2acb39c4e697c937ec21185bMike Stump Type = Context.getsigjmp_bufType(); 4203f711c41dd9412a8182793259d355c4f6979ed5edMike Stump else 4204f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Type = Context.getjmp_bufType(); 4205f711c41dd9412a8182793259d355c4f6979ed5edMike Stump 4206fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump if (Type.isNull()) { 4207f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_setjmp; 4208fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump return QualType(); 4209fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump } 4210fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 4211782fa308a765aeac2acb39c4e697c937ec21185bMike Stump } 42121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 421386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 421486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 42151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 421686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 421786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 421886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 421986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 422086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 422186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getPointerType(Type); 422286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 422386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 422486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 422586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 422686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 422786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 422886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Type.getQualifiedType(QualType::Const); 422986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 423086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 423186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 42321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 423386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 423486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 423586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 423686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 423786df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 423886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 423986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 42401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 424186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 42421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 424386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 424486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 424586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 424686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 424786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 424886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 424986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 425086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 425186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 425286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 425386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 425486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 42551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 425686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 425786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 425886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 425986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 426086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 426186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 426286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 426386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 426486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 426586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 426686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner TypeStr[0] == '.', 0); 426786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 4268a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4269a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType 4270a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanASTContext::UsualArithmeticConversionsType(QualType lhs, QualType rhs) { 4271a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Perform the usual unary conversions. We do this early so that 4272a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // integral promotions to "int" can allow us to exit early, in the 4273a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // lhs == rhs check. Also, for conversion purposes, we ignore any 4274a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // qualifiers. For example, "const float" and "float" are 4275a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // equivalent. 4276a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isPromotableIntegerType()) 4277a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getPromotedIntegerType(lhs); 4278a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4279a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = lhs.getUnqualifiedType(); 4280a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isPromotableIntegerType()) 4281a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getPromotedIntegerType(rhs); 4282a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4283a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = rhs.getUnqualifiedType(); 4284a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4285a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If both types are identical, no conversion is needed. 4286a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs == rhs) 4287a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 42881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4289a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If either side is a non-arithmetic type (e.g. a pointer), we are done. 4290a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The caller can deal with this (e.g. pointer + int). 4291a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (!lhs->isArithmeticType() || !rhs->isArithmeticType()) 4292a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 42931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // At this point, we have two different arithmetic types. 42951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4296a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle complex types first (C99 6.3.1.8p1). 4297a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexType() || rhs->isComplexType()) { 4298a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the complex type. 42991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (rhs->isIntegerType() || rhs->isComplexIntegerType()) { 4300a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 4301a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4302a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 43031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isIntegerType() || lhs->isComplexIntegerType()) { 4304a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 4305a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4306a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4307a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // This handles complex/complex, complex/float, or float/complex. 43081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // When both operands are complex, the shorter operand is converted to the 43091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type of the longer, and that is the type of the result. This corresponds 43101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // to what is done when combining two real floating-point operands. 43111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The fun begins when size promotion occur across type domains. 4312a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // From H&S 6.3.4: When one operand is complex and the other is a real 43131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // floating-point type, the less precise type is converted, within it's 4314a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // real or complex domain, to the precision of the other type. For example, 43151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // when combining a "long double" with a "double _Complex", the 4316a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // "double _Complex" is promoted to "long double _Complex". 4317a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 43181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (result > 0) { // The left side is bigger, convert rhs. 4320a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getFloatingTypeOfSizeWithinDomain(lhs, rhs); 43211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (result < 0) { // The right side is bigger, convert lhs. 4322a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getFloatingTypeOfSizeWithinDomain(rhs, lhs); 43231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 4324a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // At this point, lhs and rhs have the same rank/size. Now, make sure the 4325a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // domains match. This is a requirement for our implementation, C99 4326a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // does not require this promotion. 4327a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs != rhs) { // Domains don't match, we have complex/float mix. 4328a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType()) { // handle "double, _Complex double". 4329a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4330a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { // handle "_Complex double, double". 4331a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4332a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4333a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4334a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // The domain/size match exactly. 4335a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4336a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Now handle "real" floating types (i.e. float, double, long double). 4337a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType() || rhs->isRealFloatingType()) { 4338a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the real floating type. 4339a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isIntegerType()) { 4340a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the lhs floating point type. 4341a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4342a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4343a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isComplexIntegerType()) { 4344a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the complex floating point type. 4345a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(lhs); 4346a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4347a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isIntegerType()) { 4348a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the rhs floating point type. 4349a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4350a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 43511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isComplexIntegerType()) { 4352a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the complex floating point type. 4353a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(rhs); 4354a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4355a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // We have two real floating types, float/complex combos were handled above. 4356a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Convert the smaller operand to the bigger result. 4357a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 4358a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (result > 0) // convert the rhs 4359a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4360a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(result < 0 && "illegal float comparison"); 4361a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; // convert the lhs 4362a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4363a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexIntegerType() || rhs->isComplexIntegerType()) { 4364a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle GCC complex int extension. 4365a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *lhsComplexInt = lhs->getAsComplexIntegerType(); 4366a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *rhsComplexInt = rhs->getAsComplexIntegerType(); 4367a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4368a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsComplexInt && rhsComplexInt) { 43691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (getIntegerTypeOrder(lhsComplexInt->getElementType(), 4370a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsComplexInt->getElementType()) >= 0) 4371a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // convert the rhs 4372a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4373a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (lhsComplexInt && rhs->isIntegerType()) { 4374a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 4375a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4376a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (rhsComplexInt && lhs->isIntegerType()) { 4377a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 4378a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4379a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4380a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4381a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Finally, we have two differing integer types. 4382a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The rules for this case are in C99 6.3.1.8 4383a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int compare = getIntegerTypeOrder(lhs, rhs); 4384a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman bool lhsSigned = lhs->isSignedIntegerType(), 4385a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsSigned = rhs->isSignedIntegerType(); 4386a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman QualType destType; 4387a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsSigned == rhsSigned) { 4388a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Same signedness; use the higher-ranked type 4389a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = compare >= 0 ? lhs : rhs; 4390a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (compare != (lhsSigned ? 1 : -1)) { 4391a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The unsigned type has greater than or equal rank to the 4392a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // signed type, so use the unsigned type 4393a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? rhs : lhs; 4394a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (getIntWidth(lhs) != getIntWidth(rhs)) { 4395a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The two types are different widths; if we are here, that 4396a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // means the signed type is larger than the unsigned type, so 4397a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // use the signed type. 4398a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? lhs : rhs; 4399a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { 4400a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The signed type is higher-ranked than the unsigned type, 4401a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // but isn't actually any bigger (like unsigned int and long 4402a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // on most 32-bit systems). Use the unsigned type corresponding 4403a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // to the signed type. 4404a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = getCorrespondingUnsignedType(lhsSigned ? lhs : rhs); 4405a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4406a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return destType; 4407a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 4408