ASTContext.cpp revision a4eb74d4dfe126c686dc708fec444c85ffb73b47
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), 43083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump sigjmp_bufDecl(0), BlockDescriptorType(0), BlockDescriptorExtendedType(0), 44083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump SourceMgr(SM), LangOpts(LOpts), 451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump LoadedExternalComments(false), FreeMemory(FreeMem), Target(t), 462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Idents(idents), Selectors(sels), 471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BuiltinInfo(builtins), ExternalSource(0), PrintingPolicy(LOpts) { 480f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCIdRedefinitionType = QualType(); 490f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCClassRedefinitionType = QualType(); 501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (size_reserve > 0) Types.reserve(size_reserve); 51e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 5214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff InitBuiltinTypes(); 53e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 54e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 584b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 61b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 62b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::FoldingSet<ExtQuals>::iterator 640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall I = ExtQualNodes.begin(), E = ExtQualNodes.end(); 650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall while (I != E) 660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Deallocate(&*I++); 670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall { 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 72b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 73b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 74b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 75b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 76b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 77b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 78b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 79b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>::iterator 80b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar I = ObjCLayouts.begin(), E = ObjCLayouts.end(); 81b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 82b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 83b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 84b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 85b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 86b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 87ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 881ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 891ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNSEnd = NestedNameSpecifiers.end(); 911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS != NNSEnd; 921ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor /* Increment in loop */) 931ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 94ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 95ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 96ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 97ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 98b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 1022cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 1032cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 1042cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 1052cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 1097c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 110dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 1111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump#define TYPE(Name, Parent) 0, 112dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 113dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 114dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 115dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 116c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 119dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 122dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 123dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 124dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 125dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 126dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 127dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 128dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 129dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 130dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 1311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 132dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1332cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1342cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1352cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1362cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1372cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 1426b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BuiltinType *Ty = new (*this, TypeAlignment) BuiltinType(K); 1436b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall R = QualType(Ty, 0); 1446b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Types.push_back(Ty); 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 15615b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 17864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1792df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1802df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1812df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1822df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1833a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1843a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1853a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1863a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 18764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 188f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 189f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char16Ty, BuiltinType::Char16); 190f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 191f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16Ty = getFromTargetType(Target.getChar16Type()); 192f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 193f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 194f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char32Ty, BuiltinType::Char32); 195f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 196f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32Ty = getFromTargetType(Target.getChar32Type()); 197f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 1988e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 199898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 200898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 201898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 202898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 203898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 204898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 205898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 206898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 2078e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Placeholder type for C++0x auto declarations whose real type has 209e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 210e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 2111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2168e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2177e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 2181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 219de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // "Builtin" typedefs set by Sema::ActOnTranslationUnitScope(). 220de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = QualType(); 221de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = QualType(); 2221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 223de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // Builtin types for 'id' and 'Class'. 224de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); 225de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); 22614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 227a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 2281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 23033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2316e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2326e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2336e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 236251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorMemberSpecializationInfo * 237663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas GregorASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) { 2387caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Var->isStaticDataMember() && "Not a static data member"); 239663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor llvm::DenseMap<const VarDecl *, MemberSpecializationInfo *>::iterator Pos 2407caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor = InstantiatedFromStaticDataMember.find(Var); 2417caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Pos == InstantiatedFromStaticDataMember.end()) 2427caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return 0; 2431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2447caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return Pos->second; 2457caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2467caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 248251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl, 249251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor TemplateSpecializationKind TSK) { 2507caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Inst->isStaticDataMember() && "Not a static data member"); 2517caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Tmpl->isStaticDataMember() && "Not a static data member"); 2527caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(!InstantiatedFromStaticDataMember[Inst] && 2537caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor "Already noted what static data member was instantiated from"); 254251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor InstantiatedFromStaticDataMember[Inst] 255251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor = new (*this) MemberSpecializationInfo(Tmpl, TSK); 2567caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2577caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2580d8df780aef1acda5962347a32591efc629b6748Anders CarlssonUnresolvedUsingDecl * 2590d8df780aef1acda5962347a32591efc629b6748Anders CarlssonASTContext::getInstantiatedFromUnresolvedUsingDecl(UsingDecl *UUD) { 2601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::DenseMap<UsingDecl *, UnresolvedUsingDecl *>::iterator Pos 2610d8df780aef1acda5962347a32591efc629b6748Anders Carlsson = InstantiatedFromUnresolvedUsingDecl.find(UUD); 2620d8df780aef1acda5962347a32591efc629b6748Anders Carlsson if (Pos == InstantiatedFromUnresolvedUsingDecl.end()) 2630d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return 0; 2641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2650d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return Pos->second; 2660d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2670d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 2680d8df780aef1acda5962347a32591efc629b6748Anders Carlssonvoid 2690d8df780aef1acda5962347a32591efc629b6748Anders CarlssonASTContext::setInstantiatedFromUnresolvedUsingDecl(UsingDecl *UD, 2700d8df780aef1acda5962347a32591efc629b6748Anders Carlsson UnresolvedUsingDecl *UUD) { 2710d8df780aef1acda5962347a32591efc629b6748Anders Carlsson assert(!InstantiatedFromUnresolvedUsingDecl[UD] && 2720d8df780aef1acda5962347a32591efc629b6748Anders Carlsson "Already noted what using decl what instantiated from"); 2730d8df780aef1acda5962347a32591efc629b6748Anders Carlsson InstantiatedFromUnresolvedUsingDecl[UD] = UUD; 2740d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2750d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 276d8b285fee4471f393da8ee30f552ceacdc362afaAnders CarlssonFieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { 277d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos 278d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson = InstantiatedFromUnnamedFieldDecl.find(Field); 279d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson if (Pos == InstantiatedFromUnnamedFieldDecl.end()) 280d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return 0; 2811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 282d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return Pos->second; 283d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 284d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 285d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlssonvoid ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, 286d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson FieldDecl *Tmpl) { 287d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed"); 288d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Tmpl->getDeclName() && "Template field decl is not unnamed"); 289d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!InstantiatedFromUnnamedFieldDecl[Inst] && 290d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson "Already noted what unnamed field was instantiated from"); 2911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 292d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; 293d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 294d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 2952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregornamespace { 2961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump class BeforeInTranslationUnit 2972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor : std::binary_function<SourceRange, SourceRange, bool> { 2982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceManager *SourceMgr; 2991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor public: 3012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 3021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool operator()(SourceRange X, SourceRange Y) { 3042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 3052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor }; 3072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 3082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Determine whether the given comment is a Doxygen-style comment. 3102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Start the start of the comment text. 3122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param End the end of the comment text. 3142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 3152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Member whether we want to check whether this is a member comment 3162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// (which requires a < after the Doxygen-comment delimiter). Otherwise, 3172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// we only return true when we find a non-member comment. 3181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic bool 3191eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpisDoxygenComment(SourceManager &SourceMgr, SourceRange Comment, 3202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool Member = false) { 3211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *BufferStart 3222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(SourceMgr.getFileID(Comment.getBegin())).first; 3232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *Start = BufferStart + SourceMgr.getFileOffset(Comment.getBegin()); 3242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char* End = BufferStart + SourceMgr.getFileOffset(Comment.getEnd()); 3251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (End - Start < 4) 3272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor assert(Start[0] == '/' && "Not a comment?"); 3302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '*' && !(Start[2] == '!' || Start[2] == '*')) 3312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '/' && !(Start[2] == '!' || Start[2] == '/')) 3332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 3342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return (Start[3] == '<') == Member; 3362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 3372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Retrieve the comment associated with the given declaration, if 3391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// it has one. 3402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorconst char *ASTContext::getCommentForDecl(const Decl *D) { 3412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!D) 3422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check whether we have cached a comment string for this declaration 3452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // already. 3461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::DenseMap<const Decl *, std::string>::iterator Pos 3472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = DeclComments.find(D); 3482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Pos != DeclComments.end()) 3492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Pos->second.c_str(); 3502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If we have an external AST source and have not yet loaded comments from 3522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // that source, do so now. 3532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (ExternalSource && !LoadedExternalComments) { 3542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange> LoadedComments; 3552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExternalSource->ReadComments(LoadedComments); 3561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!LoadedComments.empty()) 3582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Comments.insert(Comments.begin(), LoadedComments.begin(), 3592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedComments.end()); 3601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments = true; 3622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If there are no comments anywhere, we won't find anything. 3652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Comments.empty()) 3662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the declaration doesn't map directly to a location in a file, we 3692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // can't find the comment. 3702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceLocation DeclStartLoc = D->getLocStart(); 3712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartLoc.isInvalid() || !DeclStartLoc.isFileID()) 3722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 3732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 3742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Find the comment that occurs just before this declaration. 3752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator LastComment 3761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = std::lower_bound(Comments.begin(), Comments.end(), 3772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceRange(DeclStartLoc), 3782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor BeforeInTranslationUnit(&SourceMgr)); 3791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the location for the start of the declaration and find the 3812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // beginning of the file buffer. 3821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<FileID, unsigned> DeclStartDecomp 3832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(DeclStartLoc); 3841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *FileBufferStart 3852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(DeclStartDecomp.first).first; 3861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // First check whether we have a comment for a member. 3882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment != Comments.end() && 3892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor !isa<TagDecl>(D) && !isa<NamespaceDecl>(D) && 3902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor isDoxygenComment(SourceMgr, *LastComment, true)) { 3912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 3922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 3932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first == LastCommentEndDecomp.first && 3942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second) 3951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump == SourceMgr.getLineNumber(LastCommentEndDecomp.first, 3962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second)) { 3972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The Doxygen member comment comes after the declaration starts and 3982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is on the same line and in the same file as the declaration. This 3992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is the comment we want. 4002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 4011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 4021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 4032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 4042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 4052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment == Comments.begin()) 4092e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --LastComment; 4112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the end of the comment. 4132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 4142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 4151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment and the declaration aren't in the same file, then they 4172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // aren't related. 4182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first != LastCommentEndDecomp.first) 4192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check that we actually have a Doxygen comment. 4222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *LastComment)) 4232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Compute the starting line for the declaration and for the end of the 4262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // comment (this is expensive). 4271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned DeclStartLine 4282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second); 4292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned CommentEndLine 4301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = SourceMgr.getLineNumber(LastCommentEndDecomp.first, 4312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second); 4321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment does not end on the line prior to the declaration, then 4342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // the comment is not associated with the declaration at all. 4352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (CommentEndLine + 1 != DeclStartLine) 4362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // We have a comment, but there may be more comments on the previous lines. 4392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Keep looking so long as the comments are still Doxygen comments and are 4402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // still adjacent. 4411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ExpectedLine 4422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(LastComment->getBegin()) - 1; 4432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator FirstComment = LastComment; 4442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != Comments.begin()) { 4452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Look at the previous comment 4462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --FirstComment; 4472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> Decomp 4482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this previous comment is in a different file, we're done. 4512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Decomp.first != DeclStartDecomp.first) { 4522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this comment is not a Doxygen comment, we're done. 4572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *FirstComment)) { 4582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the line number is not what we expected, we're done. 4632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned Line = SourceMgr.getLineNumber(Decomp.first, Decomp.second); 4642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Line != ExpectedLine) { 4652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 4672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Set the next expected line number. 4701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExpectedLine 4712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(FirstComment->getBegin()) - 1; 4722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The iterator range [FirstComment, LastComment] contains all of the 4752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // BCPL comments that, together, are associated with this declaration. 4762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Form a single comment block string for this declaration that concatenates 4772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // all of these comments. 4782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 4792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != LastComment) { 4802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompStart 4812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getBegin()); 4822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompEnd 4832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + DecompStart.second, 4852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + DecompEnd.second + 1); 4862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 4872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Append the last comment line. 4901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 4911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 4922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 4932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 4942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 4952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 496464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 497464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 498464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 499a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 500b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 501b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 502b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 503183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const BuiltinType *BT = T->getAs<BuiltinType>(); 504b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 505b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 506b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 507b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 508b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 509b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 510b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 511b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 512b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 513196efbf095d75180305a45f3033caa1003746604Mike Stump/// getDeclAlignInBytes - Return a conservative estimate of the alignment of the 514af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 515af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 516b7d0844c887a72064b624dc6df12cbe1441f69d0Daniel Dunbarunsigned ASTContext::getDeclAlignInBytes(const Decl *D) { 517dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 518dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 51940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 520dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, AA->getAlignment()); 521dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 522af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 523af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 5246217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType* RT = T->getAs<ReferenceType>()) { 5254cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 526f0930235ce58a91aa3b840bece9052f44d630536Anders Carlsson Align = Target.getPointerAlign(AS); 5274cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson } else if (!T->isIncompleteType() && !T->isFunctionType()) { 5284cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 529dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 530dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 531dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 532dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 533dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 534af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 535dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 536dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 537af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 538b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 539a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 540a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 5410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// 5420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// FIXME: Pointers into different addr spaces could have different sizes and 5430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// alignment requirements: getPointerInfo should take an AddrSpace, this 5440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// should take a QualType, &c. 545d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 5461d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 5475e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 5485e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 549a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 55072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 55172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 55218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 55372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 55472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 55518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 55672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 55772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 5585d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 5595d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 56018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 56118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 56218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 56318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 56418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 56572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 566fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 56718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 56818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 56918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 57018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 571fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 5721d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 5731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 57498be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 5759e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 576030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 577030d8846c7e520330007087e949f621989876e3aChris Lattner break; 5785c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 579213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 580030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 5819fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner const VectorType *VT = cast<VectorType>(T); 5829fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(VT->getElementType()); 5839fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = EltInfo.first*VT->getNumElements(); 5844bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 5856fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 5866fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 5879fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner if (VT->getNumElements() & (VT->getNumElements()-1)) { 5889fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Align = llvm::NextPowerOf2(Align); 5899fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = llvm::RoundUpToAlignment(Width, Align); 5909fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner } 591030d8846c7e520330007087e949f621989876e3aChris Lattner break; 592030d8846c7e520330007087e949f621989876e3aChris Lattner } 5935d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 5949e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 595a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 596692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 597d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 59818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 59918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 60018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 60118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 60218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 6036f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 6049e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 6059e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 6066f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 607692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 608692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 609692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 6106f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 6119e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 6129e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 6136f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 61464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 61564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 61664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 61764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 618f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char16: 619f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar16Width(); 620f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar16Align(); 621f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 622f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char32: 623f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar32Width(); 624f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar32Align(); 625f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 626692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 6276f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 6289e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 6299e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 6306f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 631692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 6326f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 6339e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 6349e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 6356f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 636692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 6376f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 6389e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 6399e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 6406f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 641692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 6426f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 6439e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 6449e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 6456f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 646ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 647ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 648ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 649ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 650ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 6516f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 6529e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 6539e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 6546f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6556f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 6565426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 6575426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 6586f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6596f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 6609e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 6619e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 6626f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6636e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 6646e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 6656e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 6661590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 667a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 668bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 669f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case Type::FixedWidthInt: 670f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: This isn't precisely correct; the width/alignment should depend 671f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // on the available types for the target 672f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Width = cast<FixedWidthIntType>(T)->getWidth(); 673736166b38235cf6d0ffb67638960d95fb2afcbd6Chris Lattner Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 674f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Align = Width; 675f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman break; 676d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 6775426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 678f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 6796f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 680485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 681485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 682485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 683485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 684485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 685485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 686f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 687f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 6885426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 689f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 690f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 691f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 6927c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 6937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 6947ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 6955d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 6966f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 6976f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 698bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 699f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 7001cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // FIXME: This is ABI dependent. We use the Itanium C++ ABI. 7011cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // http://www.codesourcery.com/public/cxx-abi/abi.html#member-pointers 7021cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson // If we ever want to support other ABIs this needs to be abstracted. 7031cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson 704f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 7051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> PtrDiffInfo = 7061cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 7071cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 708f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 709f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 7101cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 7111cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 712f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 7135d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 7145d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 7155d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 7161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> EltInfo = 71798be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 7189e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 7195d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 7205d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 7215d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 72244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 7231d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 72444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 72544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 72644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 72744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 72844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 72972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 73072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 7311d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 7321d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 7331d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 7348389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 7358389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 7368389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 7378389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 7381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7391d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 7407176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 7417176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 7421d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 7437176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 7447176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 7457176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 746dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 747a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 7487532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 7499fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::SubstTemplateTypeParm: 75049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return getTypeInfo(cast<SubstTemplateTypeParmType>(T)-> 75149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall getReplacementType().getTypePtr()); 75249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 7539fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::Elaborated: 7549fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner return getTypeInfo(cast<ElaboratedType>(T)->getUnderlyingType() 7559fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner .getTypePtr()); 7567da2431c23ef1ee8acb114e39692246e1801afc2John McCall 75718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 75818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 75940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 76018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = Aligned->getAlignment(); 76118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 76218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 76318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 7647532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 7657176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 76618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 76718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 76818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 76918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 77018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 77118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 77218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 77318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 774395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 775395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 776395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 777395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 77818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 77918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 7801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 78118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 7821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(getCanonicalType(T) != T && 78318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 78418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 78518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 78618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 78718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 78818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 7891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 790464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 7919e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 792a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 793a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 79434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 79534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 79634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 79734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 79834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 79934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 8001eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 8011eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 802183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType* CT = T->getAs<ComplexType>()) 8031eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 8041eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 8051eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 8061eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 8071eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 80834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 80934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 81034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 811a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 812a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 813a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 814a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 815a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 816f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 817a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 818a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 819a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 820a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 821a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 822a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 823a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 824a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 825a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 826a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 827a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 828a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 8298e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 8308e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 8318e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 8328e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 8338e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 8348e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian bool CollectSynthesized) { 8358e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 8368e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 8378e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 8388e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8398e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (CollectSynthesized) 8408e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian CollectSynthesizedIvars(OI, Ivars); 8418e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8428e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8439820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 8449820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 84517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 84617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8479820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8489820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8509820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 8519820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8529820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8539820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 8549820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8559820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8569820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// CollectSynthesizedIvars - 8579820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// This routine collect synthesized ivars for the designated class. 8589820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 8599820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 8609820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 86117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 86217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 8639820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 8649820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 8659820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8669820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 8679820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 8689820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 8699820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 8709820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 8719820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 8729820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 8739820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8749820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 8758e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 8768e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 87717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 87817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 8798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 8808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8828e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into nested protocols. 8838e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8848e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->protocol_end(); P != E; ++P) 8858e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(*P); 8868e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 8878e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8888e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) { 8908e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 89117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 89217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 8938e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 8948e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8958e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8968e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into interface's protocol list for properties declared 8978e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // in the protocol and whose ivars are synthesized. 8988e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 8998e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 9008e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ObjCProtocolDecl *PD = (*P); 9018e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(PD); 9028e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 9038e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 9048e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 9058e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9068a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCInterfaceDecl,or NULL if none exists. 9078a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { 9088a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 9098a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 9108a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 9118a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCImplementationDecl>(I->second); 9128a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 9138a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9148a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCCategoryDecl, or NULL if none exists. 9158a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { 9168a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 9178a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 9188a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 9198a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCCategoryImplDecl>(I->second); 9208a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 9218a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9228a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 9238a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCInterfaceDecl. 9248a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, 9258a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImplementationDecl *ImplD) { 9268a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(IFaceD && ImplD && "Passed null params"); 9278a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[IFaceD] = ImplD; 9288a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9298a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCCategoryDecl. 9308a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, 9318a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCCategoryImplDecl *ImplD) { 9328a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(CatD && ImplD && "Passed null params"); 9338a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[CatD] = ImplD; 9348a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9358a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 936b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \brief Allocate an uninitialized DeclaratorInfo. 937b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 938b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// The caller should initialize the memory held by DeclaratorInfo using 939b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// the TypeLoc wrappers. 940b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 941b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \param T the type that will be the basis for type source info. This type 942b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// should refer to how the declarator was written in source code, not to 943b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// what type semantic analysis resolved the declarator to. 944109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCallDeclaratorInfo *ASTContext::CreateDeclaratorInfo(QualType T, 945109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall unsigned DataSize) { 946109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall if (!DataSize) 947109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall DataSize = TypeLoc::getFullDataSizeForType(T); 948109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall else 949109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall assert(DataSize == TypeLoc::getFullDataSizeForType(T) && 950109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall "incorrect data size provided to CreateDeclaratorInfo!"); 951109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall 952b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis DeclaratorInfo *DInfo = 953b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis (DeclaratorInfo*)BumpAlloc.Allocate(sizeof(DeclaratorInfo) + DataSize, 8); 954b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis new (DInfo) DeclaratorInfo(T); 955b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis return DInfo; 956b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis} 957b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis 958a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCallDeclaratorInfo *ASTContext::getTrivialDeclaratorInfo(QualType T, 959a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall SourceLocation L) { 960a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall DeclaratorInfo *DI = CreateDeclaratorInfo(T); 961a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall DI->getTypeLoc().initialize(L); 962a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall return DI; 963a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall} 964a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall 965b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 966b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 967b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 968b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 969b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 97044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 971b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 972b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 973532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 974532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 97544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 9761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCContainerDecl *Key = 977d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 978d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 979d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 98044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 981453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 982453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 98329445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson unsigned FieldCount = D->ivar_size(); 9848e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned SynthCount = CountSynthesizedIvars(D); 9858e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian FieldCount += SynthCount; 986d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 987453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 988453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 989453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 9908e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 991453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 992453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 993453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 9941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 99529445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D, Impl); 99629445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ObjCLayouts[Key] = NewEntry; 9971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 99844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 99944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 100044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 1001b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1002b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 1003b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 1004b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1005b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 1006b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1007b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 1008b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 1009b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1010b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 101188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 1012464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 1013464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 101498be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 10154b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 10164b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 10174bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 1018464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 1019ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // Note that we can't save a reference to the entry because this function 1020ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // is recursive. 1021ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman const ASTRecordLayout *Entry = ASTRecordLayouts[D]; 1022464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 10234bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 10241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 102529445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D); 1026ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman ASTRecordLayouts[D] = NewEntry; 10271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10285d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 1029464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 1030464175bba1318bef7905122e9fda20cff926df78Chris Lattner 1031a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1032a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 1033a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1034a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 10350953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getExtQualType(const Type *TypeNode, Qualifiers Quals) { 10360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned Fast = Quals.getFastQualifiers(); 10370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeFastQualifiers(); 10380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Check if we've already instantiated this type. 10400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::FoldingSetNodeID ID; 10410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQuals::Profile(ID, TypeNode, Quals); 10420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void *InsertPos = 0; 10430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ExtQuals *EQ = ExtQualNodes.FindNodeOrInsertPos(ID, InsertPos)) { 10440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(EQ->getQualifiers() == Quals); 10450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(EQ, Fast); 10460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 10470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 10480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10496b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtQuals *New = new (*this, TypeAlignment) ExtQuals(*this, TypeNode, Quals); 10500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQualNodes.InsertNode(New, InsertPos); 10510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(New, Fast); 10520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 10530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 10540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10550953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getVolatileType(QualType T) { 10560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanT = getCanonicalType(T); 10570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (CanT.isVolatileQualified()) return T; 10580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 10600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 10610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addVolatile(); 10620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 10640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 10650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1066f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 1067f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 1068f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 1069f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 1070b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 10710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 10720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 10730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 10740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 10751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an address space specified, it cannot get 10770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 10780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasAddressSpace() && 10790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot be in multiple addr spaces!"); 10800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addAddressSpace(AddressSpace); 10811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1083ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 1084ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1085b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 10860953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr) { 1087d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 1088b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 1089d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 10901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10914027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 10926217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 109358f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff if (Pointee->isAnyPointerType()) { 10944027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 10954027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 10964027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 10974027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 10981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 11000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 11010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 11020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 11031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an ObjCGC specified, it cannot get 11050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 11060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasObjCGCAttr() && 11070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot have multiple ObjCGCs!"); 11080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addObjCGCAttr(GCAttr); 11091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1111d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1112a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 11132455636163fdd18581d7fdae816433f886d88213Mike StumpQualType ASTContext::getNoReturnType(QualType T) { 11140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType ResultType; 11152455636163fdd18581d7fdae816433f886d88213Mike Stump if (T->isPointerType()) { 11166217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 11170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType = getNoReturnType(Pointee); 11186dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType = getPointerType(ResultType); 11190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else if (T->isBlockPointerType()) { 11206217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<BlockPointerType>()->getPointeeType(); 11210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType = getNoReturnType(Pointee); 11226dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump ResultType = getBlockPointerType(ResultType); 11230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else { 11240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert (T->isFunctionType() 11250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall && "can't noreturn qualify non-pointer to function or block type"); 11261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1127bdbeeb50c5d182c591bd8797dc0485921df19e9dBenjamin Kramer if (const FunctionNoProtoType *FNPT = T->getAs<FunctionNoProtoType>()) { 1128bdbeeb50c5d182c591bd8797dc0485921df19e9dBenjamin Kramer ResultType = getFunctionNoProtoType(FNPT->getResultType(), true); 11290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else { 11300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const FunctionProtoType *F = T->getAs<FunctionProtoType>(); 11310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType 11320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall = getFunctionType(F->getResultType(), F->arg_type_begin(), 11330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall F->getNumArgs(), F->isVariadic(), F->getTypeQuals(), 11340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall F->hasExceptionSpec(), F->hasAnyExceptionSpec(), 11350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall F->getNumExceptions(), F->exception_begin(), true); 11360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 11372455636163fdd18581d7fdae816433f886d88213Mike Stump } 11380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 11390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getQualifiedType(ResultType, T.getQualifiers()); 11402455636163fdd18581d7fdae816433f886d88213Mike Stump} 11412455636163fdd18581d7fdae816433f886d88213Mike Stump 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 11491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 11525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 11531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 11555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1157467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1158f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 11591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1162f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11646b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ComplexType *New = new (*this, TypeAlignment) ComplexType(T, Canonical); 11655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1170f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 1171f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 1172f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 1173f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 1174f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 1175f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 1176f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 1177f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 11861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 11901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1194467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1195f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 11961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1199f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12016b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall PointerType *New = new (*this, TypeAlignment) PointerType(T, Canonical); 12025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 12045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getBlockPointerType - Return the uniqued reference to the type for 12085618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 12095618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1210296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1211296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 12125618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 12135618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 12145618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 12151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12165618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 12175618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 12185618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 12195618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 12201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the block pointee type isn't canonical, this won't be a canonical 12225618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 12235618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 1224467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 12255618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 12261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12275618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 12285618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 12295618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1230f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12315618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 12326b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BlockPointerType *New 12336b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) BlockPointerType(T, Canonical); 12345618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 12355618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 12365618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 12375618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 12385618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 12397c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 12407c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 124154e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType ASTContext::getLValueReferenceType(QualType T, bool SpelledAsLValue) { 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 124554e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, SpelledAsLValue); 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12487c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 12497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 12517c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 125254e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 125354e14c4db764c0636160d26c5bbf491637c83a76John McCall 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 12555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 12565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 125754e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!SpelledAsLValue || InnerRef || !T.isCanonical()) { 125854e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 125954e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getLValueReferenceType(getCanonicalType(PointeeType)); 12607c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 12627c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 12637c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 12647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12657c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 12667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12676b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall LValueReferenceType *New 126854e14c4db764c0636160d26c5bbf491637c83a76John McCall = new (*this, TypeAlignment) LValueReferenceType(T, Canonical, 126954e14c4db764c0636160d26c5bbf491637c83a76John McCall SpelledAsLValue); 12707c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 12717c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 127254e14c4db764c0636160d26c5bbf491637c83a76John McCall 12737c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 12747c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 12757c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12767c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 12777c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 12787c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 12797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 12807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 12817c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 128254e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, false); 12837c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12847c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 12857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 12867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 12887c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 128954e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 129054e14c4db764c0636160d26c5bbf491637c83a76John McCall 12917c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 12927c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 12937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 129454e14c4db764c0636160d26c5bbf491637c83a76John McCall if (InnerRef || !T.isCanonical()) { 129554e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 129654e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getRValueReferenceType(getCanonicalType(PointeeType)); 12977c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12997c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 13007c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1301f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13046b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall RValueReferenceType *New 13056b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); 13065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13077c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1311f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1312f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 13131eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) { 1314f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1315f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1316f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1317f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1318f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1319f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1320f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1321f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1322f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1323f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1324f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1325f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1326f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 1327467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1328f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1329f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1330f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1331f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1332f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1333f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1334f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 13356b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall MemberPointerType *New 13366b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); 1337f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1338f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1339f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1340f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1341f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 13421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getConstantArrayType - Return the unique reference to the type for an 1343fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 13441eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getConstantArrayType(QualType EltTy, 134538aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1346c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1347c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1348587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman assert((EltTy->isDependentType() || EltTy->isConstantSizeType()) && 1349587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1350587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 135138aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 135238aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 135338aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 135438aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 13551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 13570be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 13581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ConstantArrayType *ATP = 13617192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 13625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 13631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 13655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 13665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1367467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 13681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1369c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 13705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ConstantArrayType *NewIP = 13727192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1373f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13766b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType *New = new(*this,TypeAlignment) 13776b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 13787192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 13795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1383bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1384bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 13857e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 13867e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1387c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 13887e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 13897e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1390c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1391c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1392c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 13936b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType *New = new(*this, TypeAlignment) 13946b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType(EltTy, QualType(), NumElts, ASM, EltTypeQuals, Brackets); 1395c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1396c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1397c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1398c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1399c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1400c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1401898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1402898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 140304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor/// type. 14047e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 14057e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1406898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 14077e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14087e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 14091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 1410898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1411898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 141204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor llvm::FoldingSetNodeID ID; 14131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedArrayType::Profile(ID, *this, getCanonicalType(EltTy), ASM, 141404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor EltTypeQuals, NumElts); 1415898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 141604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor void *InsertPos = 0; 141704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *Canon 141804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 141904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *New; 142004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (Canon) { 142104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // We already have a canonical version of this array type; use it as 142204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // the canonical type for a newly-built type. 14236b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14246b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(Canon, 0), 14256b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 142604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 142704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType CanonEltTy = getCanonicalType(EltTy); 142804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (CanonEltTy == EltTy) { 14296b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14306b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(), 14316b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 143204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayTypes.InsertNode(New, InsertPos); 143304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 143404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType Canon = getDependentSizedArrayType(CanonEltTy, NumElts, 143504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor ASM, EltTypeQuals, 143604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor SourceRange()); 14376b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14386b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, Canon, 14396b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 144004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 144104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 14421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1443898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1444898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1445898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1446898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1447c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1448c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1449c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1450c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 14510be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1452c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1453c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 14541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (IncompleteArrayType *ATP = 1455c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1456c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1457c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1458c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1459c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1460c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1461c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1462467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 1463f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 14642bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1465c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1466c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1467c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1468c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1469f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14702bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1471c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 14726b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType *New = new (*this, TypeAlignment) 14736b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType(EltTy, Canonical, ASM, EltTypeQuals); 1474c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1475c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1476c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1477c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1478fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1479fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 148073322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 148173322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 148273322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 14835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 14841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1485f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 148673322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 14871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 14895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 14901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VectorType::Profile(ID, vecType, NumElts, Type::Vector); 14915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 14925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 14935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 14945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 14965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 14975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1498467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!vecType.isCanonical()) { 1499f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 15001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 15025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1503f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15056b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType *New = new (*this, TypeAlignment) 15066b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType(vecType, NumElts, Canonical); 15075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 15085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 15095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 15105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1512213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 151373322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1514213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 151573322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 15161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1517f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1518213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 15191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 152073322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 152173322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 15221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 152373322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 152473322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 152573322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 152673322924127c873c13101b705dd823f5539ffa5fSteve Naroff 152773322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 152873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 152973322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 1530467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!vecType.isCanonical()) { 1531213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 15321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 153373322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 153473322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1535f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 153673322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 15376b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType *New = new (*this, TypeAlignment) 15386b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType(vecType, NumElts, Canonical); 153973322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 154073322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 154173322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 154273322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 154373322924127c873c13101b705dd823f5539ffa5fSteve Naroff 15441eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 15459cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 15469cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 15472ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor llvm::FoldingSetNodeID ID; 15481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), 15492ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr); 15501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15512ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor void *InsertPos = 0; 15522ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *Canon 15532ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 15542ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *New; 15552ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (Canon) { 15562ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // We already have a canonical version of this array type; use it as 15572ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // the canonical type for a newly-built type. 15586b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15596b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), 15606b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall SizeExpr, AttrLoc); 15612ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 15622ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType CanonVecTy = getCanonicalType(vecType); 15632ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (CanonVecTy == vecType) { 15646b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15656b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, 15666b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall AttrLoc); 15672ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorTypes.InsertNode(New, InsertPos); 15682ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 15692ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType Canon = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, 15702ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SourceLocation()); 15716b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15726b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, Canon, SizeExpr, AttrLoc); 15732ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 15742ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 15751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15769cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 15779cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 15789cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 15799cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 158072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 15815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 15822455636163fdd18581d7fdae816433f886d88213Mike StumpQualType ASTContext::getFunctionNoProtoType(QualType ResultTy, bool NoReturn) { 15835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 15845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 15855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 15862455636163fdd18581d7fdae816433f886d88213Mike Stump FunctionNoProtoType::Profile(ID, ResultTy, NoReturn); 15871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 15891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionNoProtoType *FT = 159072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 15915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 15921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1594467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!ResultTy.isCanonical()) { 15952455636163fdd18581d7fdae816433f886d88213Mike Stump Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy), NoReturn); 15961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 159872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 159972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1600f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16036b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType *New = new (*this, TypeAlignment) 16046b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType(ResultTy, Canonical, NoReturn); 16055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 160672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 16075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 16085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 16115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 161261710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1613971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1614465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1615465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 16162455636163fdd18581d7fdae816433f886d88213Mike Stump const QualType *ExArray, bool NoReturn) { 16175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 16185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 16195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 162072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1621465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 16222455636163fdd18581d7fdae816433f886d88213Mike Stump NumExs, ExArray, NoReturn); 16235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionProtoType *FTP = 162672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 16275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1628465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1629465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 163054e14c4db764c0636160d26c5bbf491637c83a76John McCall bool isCanonical = !hasExceptionSpec && ResultTy.isCanonical(); 16315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 163254e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!ArgArray[i].isCanonicalAsParam()) 16335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 16345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1636465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 16375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 16385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 16395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 16405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 16415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 164254e14c4db764c0636160d26c5bbf491637c83a76John McCall CanonicalArgs.push_back(getCanonicalParamType(ArgArray[i])); 1643465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1644f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1645beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 164647259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor isVariadic, TypeQuals, false, 164747259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor false, 0, 0, NoReturn); 1648465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 16495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 165072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 165172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1652f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1654465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 165572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1656465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1657465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 16581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FunctionProtoType *FTP = 1659465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1660465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 16616b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumExs*sizeof(QualType), TypeAlignment); 166272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1663465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 16642455636163fdd18581d7fdae816433f886d88213Mike Stump ExArray, NumExs, Canonical, NoReturn); 16655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 166672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 16675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 16685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16702ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 16712ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 16724b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 16731e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 16742ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 16751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16761e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 16772ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1678fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1679fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 16809fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (ObjCInterfaceDecl *ObjCInterface 16819fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump = dyn_cast<ObjCInterfaceDecl>(Decl)) 16822ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 168349aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1684c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1685566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1686566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1687f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 16886b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) RecordType(Record); 16899fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1690566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1691566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1692f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 16936b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) EnumType(Enum); 16949fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else 16952ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 169649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 16974b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 169849aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 16992ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 17002ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 17015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 17025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 17035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 17045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 17051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1706f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 17076b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new(*this, TypeAlignment) 17086b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypedefType(Type::Typedef, Decl, Canonical); 17095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 17105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 17115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 171349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// \brief Retrieve a substitution-result type. 171449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallQualType 171549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallASTContext::getSubstTemplateTypeParmType(const TemplateTypeParmType *Parm, 171649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType Replacement) { 1717467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(Replacement.isCanonical() 171849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall && "replacement types must always be canonical"); 171949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 172049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall llvm::FoldingSetNodeID ID; 172149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType::Profile(ID, Parm, Replacement); 172249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall void *InsertPos = 0; 172349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType *SubstParm 172449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall = SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 172549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 172649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall if (!SubstParm) { 172749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstParm = new (*this, TypeAlignment) 172849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType(Parm, Replacement); 172949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall Types.push_back(SubstParm); 173049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos); 173149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 173249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 173349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return QualType(SubstParm, 0); 173449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall} 173549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 1736fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 17371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parameter or parameter pack with the given depth, index, and (optionally) 173876e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 17391eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 174076e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1741fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1742fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 174376e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1744fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 17451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateTypeParmType *TypeParm 1746fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1747fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1748fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1749fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 17501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 175176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 175276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 17536b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 17546b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack, Name, Canon); 175576e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 17566b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 17576b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack); 1758fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1759fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1760fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1761fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1762fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1763fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1764fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 17651eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 17667532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 17677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 17687532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 17697532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 1770b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (!Canon.isNull()) 1771b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = getCanonicalType(Canon); 1772b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor else { 1773b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor // Build the canonical template specialization type. 17741275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateName CanonTemplate = getCanonicalTemplateName(Template); 17751275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::SmallVector<TemplateArgument, 4> CanonArgs; 17761275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.reserve(NumArgs); 17771275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor for (unsigned I = 0; I != NumArgs; ++I) 17781275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.push_back(getCanonicalTemplateArgument(Args[I])); 17791275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 17801275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Determine whether this canonical template specialization type already 17811275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // exists. 17821275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::FoldingSetNodeID ID; 17831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType::Profile(ID, CanonTemplate, 1784828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor CanonArgs.data(), NumArgs, *this); 17851275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 17861275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor void *InsertPos = 0; 17871275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateSpecializationType *Spec 17881275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 17891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17901275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor if (!Spec) { 17911275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate a new canonical template specialization type. 17921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 17931275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor sizeof(TemplateArgument) * NumArgs), 17946b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 17951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Spec = new (Mem) TemplateSpecializationType(*this, CanonTemplate, 17961275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.data(), NumArgs, 1797b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon); 17981275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Types.push_back(Spec); 17991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 18001275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 18011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1802b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (Canon.isNull()) 1803b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = QualType(Spec, 0); 18041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(Canon->isDependentType() && 18051275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor "Non-dependent template-id type must have a canonical type"); 1806b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor } 1807fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 18081275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate the (non-canonical) template specialization type, but don't 18091275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // try to unique it: these types typically have location information that 18101275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // we don't unique and don't want to lose. 18111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 181240808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 18136b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 18141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType *Spec 18151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = new (Mem) TemplateSpecializationType(*this, Template, Args, NumArgs, 1816828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor Canon); 18171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 181855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 18191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(Spec, 0); 182055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 182155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 18221eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 1823ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1824e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1825e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1826ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1827e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1828e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 18291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualifiedNameType *T 1830e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1831e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1832e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1833e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 18341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T = new (*this) QualifiedNameType(NNS, NamedType, 1835ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1836e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1837e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1838e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1839e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1840e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 18411eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1842d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1843d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1844d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1845d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1846d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1847d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1848d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1849d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1850d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1851d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1852d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1853d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1854d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1855d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 18561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypenameType *T 1857d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1858d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1859d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1860d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1861d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1862d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1863d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 18641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 1865d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1866d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 18671eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 18681eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpASTContext::getTypenameType(NestedNameSpecifier *NNS, 18691734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 18701734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 18711734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 18721734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18731734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 18741734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 18751734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 18761734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 18771734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 1878183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall = CanonType->getAs<TemplateSpecializationType>(); 18791734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 18801734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 18811734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 18821734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 18831734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 18841734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18851734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 18861734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 18871734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18881734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 18891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypenameType *T 18901734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 18911734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 18921734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 18931734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 18941734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 18951734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 18961734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 18971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 18981734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 18991734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 19007da2431c23ef1ee8acb114e39692246e1801afc2John McCallQualType 19017da2431c23ef1ee8acb114e39692246e1801afc2John McCallASTContext::getElaboratedType(QualType UnderlyingType, 19027da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::TagKind Tag) { 19037da2431c23ef1ee8acb114e39692246e1801afc2John McCall llvm::FoldingSetNodeID ID; 19047da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::Profile(ID, UnderlyingType, Tag); 19051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19067da2431c23ef1ee8acb114e39692246e1801afc2John McCall void *InsertPos = 0; 19077da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 19087da2431c23ef1ee8acb114e39692246e1801afc2John McCall if (T) 19097da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 19107da2431c23ef1ee8acb114e39692246e1801afc2John McCall 19117da2431c23ef1ee8acb114e39692246e1801afc2John McCall QualType Canon = getCanonicalType(UnderlyingType); 19127da2431c23ef1ee8acb114e39692246e1801afc2John McCall 19137da2431c23ef1ee8acb114e39692246e1801afc2John McCall T = new (*this) ElaboratedType(UnderlyingType, Tag, Canon); 19147da2431c23ef1ee8acb114e39692246e1801afc2John McCall Types.push_back(T); 19157da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedTypes.InsertNode(T, InsertPos); 19167da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 19177da2431c23ef1ee8acb114e39692246e1801afc2John McCall} 19187da2431c23ef1ee8acb114e39692246e1801afc2John McCall 191988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 192088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 192188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 192288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 19232e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 192488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 192588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 192654e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic bool areSortedAndUniqued(ObjCProtocolDecl **Protocols, 192754e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned NumProtocols) { 192854e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols == 0) return true; 192954e14c4db764c0636160d26c5bbf491637c83a76John McCall 193054e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 1; i != NumProtocols; ++i) 193154e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!CmpProtocolNames(Protocols[i-1], Protocols[i])) 193254e14c4db764c0636160d26c5bbf491637c83a76John McCall return false; 193354e14c4db764c0636160d26c5bbf491637c83a76John McCall return true; 193454e14c4db764c0636160d26c5bbf491637c83a76John McCall} 193554e14c4db764c0636160d26c5bbf491637c83a76John McCall 193654e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic void SortAndUniqueProtocols(ObjCProtocolDecl **Protocols, 193788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 193888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 19391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 194088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 194188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 194288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 194388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 194488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 194588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 194688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 194788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1948d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 1949d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 195014108da7f7fc059772711e4ffee1322a27b152a7Steve NaroffQualType ASTContext::getObjCObjectPointerType(QualType InterfaceT, 19511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCProtocolDecl **Protocols, 1952d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff unsigned NumProtocols) { 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 196154e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 196254e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 196354e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!InterfaceT.isCanonical() || 196454e14c4db764c0636160d26c5bbf491637c83a76John McCall !areSortedAndUniqued(Protocols, NumProtocols)) { 196554e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!areSortedAndUniqued(Protocols, NumProtocols)) { 196654e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 196754e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 196854e14c4db764c0636160d26c5bbf491637c83a76John McCall 196954e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 197054e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 197154e14c4db764c0636160d26c5bbf491637c83a76John McCall 197254e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 197354e14c4db764c0636160d26c5bbf491637c83a76John McCall &Sorted[0], UniqueCount); 197454e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 197554e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 197654e14c4db764c0636160d26c5bbf491637c83a76John McCall Protocols, NumProtocols); 197754e14c4db764c0636160d26c5bbf491637c83a76John McCall } 197854e14c4db764c0636160d26c5bbf491637c83a76John McCall 197954e14c4db764c0636160d26c5bbf491637c83a76John McCall // Regenerate InsertPos. 198054e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 198154e14c4db764c0636160d26c5bbf491637c83a76John McCall } 198254e14c4db764c0636160d26c5bbf491637c83a76John McCall 1983d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff // No Match; 19846b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ObjCObjectPointerType *QType = new (*this, TypeAlignment) 198554e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCObjectPointerType(Canonical, InterfaceT, Protocols, NumProtocols); 19861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1987d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 1988d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 1989d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff return QualType(QType, 0); 1990d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 199188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1992c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// getObjCInterfaceType - Return the unique reference to the type for the 1993c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// specified ObjC interface decl. The list of protocols is optional. 1994c15cb2af27514ecc879daba9aa01389c5203685dSteve NaroffQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, 1995a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 19964b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1997c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 19981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19994b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 2000c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (ObjCInterfaceType *QT = 2001c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 20024b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 20031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 200454e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 200554e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 200654e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols && !areSortedAndUniqued(Protocols, NumProtocols)) { 200754e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 200854e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 20094b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 201054e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 201154e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 201224fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 201354e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCInterfaceType(Decl, &Sorted[0], UniqueCount); 201454e14c4db764c0636160d26c5bbf491637c83a76John McCall 201554e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos); 201654e14c4db764c0636160d26c5bbf491637c83a76John McCall } 201754e14c4db764c0636160d26c5bbf491637c83a76John McCall 201854e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceType *QType = new (*this, TypeAlignment) 201954e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceType(Canonical, const_cast<ObjCInterfaceDecl*>(Decl), 202054e14c4db764c0636160d26c5bbf491637c83a76John McCall Protocols, NumProtocols); 202124fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 202224fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis Types.push_back(QType); 202354e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.InsertNode(QType, InsertPos); 202424fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis return QualType(QType, 0); 202524fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis} 202624fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 202772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 202872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 20299752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 20301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// DeclRefExpr's. This doesn't effect the type checker, since it operates 20319752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 203272564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 2033dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType *toe; 2034b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (tofExpr->isTypeDependent()) { 2035b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor llvm::FoldingSetNodeID ID; 2036b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType::Profile(ID, *this, tofExpr); 20371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2038b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor void *InsertPos = 0; 2039b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType *Canon 2040b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); 2041b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (Canon) { 2042b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // We already have a "canonical" version of an identical, dependent 2043b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // typeof(expr) type. Use that as our canonical type. 20446b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, 2045b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor QualType((TypeOfExprType*)Canon, 0)); 2046b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2047b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor else { 2048b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // Build a new, canonical typeof(expr) type. 20496b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon 20506b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) DependentTypeOfExprType(*this, tofExpr); 2051b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); 2052b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor toe = Canon; 2053b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2054b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } else { 2055dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType Canonical = getCanonicalType(tofExpr->getType()); 20566b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, Canonical); 2057dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 20589752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 20599752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 2060d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2061d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 20629752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 20639752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 20649752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 20651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 20669752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 2067d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 2068f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 20696b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeOfType *tot = new (*this, TypeAlignment) TypeOfType(tofType, Canonical); 20709752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 20719752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 2072d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2073d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 207460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 207560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 207660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 2077a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 2078a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 20791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 208060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 208160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 208260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 208360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 208460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 208560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 208660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 208760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 208860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 208960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 209060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 209160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 209260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 209360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 209460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 20951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 209660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 20971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 209960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 210060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 210160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 21021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 210360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 210460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 210560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 2106395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 2107395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 2108395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 21091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 2110395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 2111395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 2112dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor DecltypeType *dt; 21139d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (e->isTypeDependent()) { 21149d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor llvm::FoldingSetNodeID ID; 21159d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType::Profile(ID, *this, e); 21161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21179d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor void *InsertPos = 0; 21189d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType *Canon 21199d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); 21209d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (Canon) { 21219d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // We already have a "canonical" version of an equivalent, dependent 21229d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // decltype type. Use that as our canonical type. 21236b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, DependentTy, 21249d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor QualType((DecltypeType*)Canon, 0)); 21259d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 21269d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor else { 21279d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // Build a new, canonical typeof(expr) type. 21286b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon = new (*this, TypeAlignment) DependentDecltypeType(*this, e); 21299d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeTypes.InsertNode(Canon, InsertPos); 21309d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor dt = Canon; 21319d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 21329d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } else { 2133dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType T = getDecltypeForExpr(e, *this); 21346b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, T, getCanonicalType(T)); 2135dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 2136395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 2137395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 2138395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 2139395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 21405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 21415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 2142e607ed068334bacb8d7b093996b4671c6ca79e25Mike StumpQualType ASTContext::getTagDeclType(const TagDecl *Decl) { 2143d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 2144e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // FIXME: What is the design on getTagDeclType when it requires casting 2145e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // away const? mutable? 2146e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump return getTypeDeclType(const_cast<TagDecl*>(Decl)); 21475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 21485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 21491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 21501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 21511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// needs to agree with the definition in <stddef.h>. 21525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 2153b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 21545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 21555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 215664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 215764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 215864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 215964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 216064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 216164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 216264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 216364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 216464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 216564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 216664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 216764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 216864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 216964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 21708b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 21718b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 21728b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 2173b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 21748b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 21758b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 2176e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2177e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 2178e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2179e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 218054e14c4db764c0636160d26c5bbf491637c83a76John McCallCanQualType ASTContext::getCanonicalParamType(QualType T) { 218154e14c4db764c0636160d26c5bbf491637c83a76John McCall // Push qualifiers into arrays, and then discard any remaining 218254e14c4db764c0636160d26c5bbf491637c83a76John McCall // qualifiers. 218354e14c4db764c0636160d26c5bbf491637c83a76John McCall T = getCanonicalType(T); 218454e14c4db764c0636160d26c5bbf491637c83a76John McCall const Type *Ty = T.getTypePtr(); 218554e14c4db764c0636160d26c5bbf491637c83a76John McCall 218654e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Result; 218754e14c4db764c0636160d26c5bbf491637c83a76John McCall if (isa<ArrayType>(Ty)) { 218854e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getArrayDecayedType(QualType(Ty,0)); 218954e14c4db764c0636160d26c5bbf491637c83a76John McCall } else if (isa<FunctionType>(Ty)) { 219054e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getPointerType(QualType(Ty, 0)); 219154e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 219254e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = QualType(Ty, 0); 219354e14c4db764c0636160d26c5bbf491637c83a76John McCall } 219454e14c4db764c0636160d26c5bbf491637c83a76John McCall 219554e14c4db764c0636160d26c5bbf491637c83a76John McCall return CanQualType::CreateUnsafe(Result); 219654e14c4db764c0636160d26c5bbf491637c83a76John McCall} 219754e14c4db764c0636160d26c5bbf491637c83a76John McCall 219877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 219977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 220077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 220177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 220277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 220377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 220450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas GregorCanQualType ASTContext::getCanonicalType(QualType T) { 22050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 22060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ptr = Quals.strip(T); 22070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanType = Ptr->getCanonicalTypeInternal(); 22080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 22090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // The canonical internal type will be the canonical type *except* 22100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // that we push type qualifiers down through array types. 22111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If there are no new qualifiers to push down, stop here. 22130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!Quals.hasQualifiers()) 221450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(CanType); 2215c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 22160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the type qualifiers are on an array type, get the canonical 22170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type of the array with the qualifiers applied to the element 22180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type. 2219c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 2220c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 22210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return CanQualType::CreateUnsafe(getQualifiedType(CanType, Quals)); 22221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2223c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2224c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 22250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(AT->getElementType(), Quals); 2226c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 22271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2228c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 222950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 223050d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getConstantArrayType(NewEltTy, CAT->getSize(), 223150d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor CAT->getSizeModifier(), 22320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2233c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 223450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 223550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 22360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 22371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2238898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 223950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 224050d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getDependentSizedArrayType(NewEltTy, 2241bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2242bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 224350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getSizeModifier(), 22440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 224550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getBracketsRange())); 2246898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2247c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 224850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(getVariableArrayType(NewEltTy, 2249bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 2250bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr()->Retain() : 0, 225150d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getSizeModifier(), 22520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 225350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getBracketsRange())); 2254c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 2255c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 225625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 225725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 225825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 225925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 226097fbaa2a38804268a024f1a104b43fcf8b4411b0Argyrios Kyrtzidis return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); 226125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 22621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If this template name refers to a set of overloaded function templates, 2263d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor /// the canonical template name merely stores the set of function templates. 22646ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (OverloadedFunctionDecl *Ovl = Name.getAsOverloadedFunctionDecl()) { 22656ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor OverloadedFunctionDecl *CanonOvl = 0; 22666ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor for (OverloadedFunctionDecl::function_iterator F = Ovl->function_begin(), 22676ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor FEnd = Ovl->function_end(); 22686ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor F != FEnd; ++F) { 22696ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor Decl *Canon = F->get()->getCanonicalDecl(); 22706ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (CanonOvl || Canon != F->get()) { 22716ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor if (!CanonOvl) 22721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CanonOvl = OverloadedFunctionDecl::Create(*this, 22731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Ovl->getDeclContext(), 22746ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor Ovl->getDeclName()); 22751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22766ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor CanonOvl->addOverload( 22776ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor AnyFunctionDecl::getFromNamedDecl(cast<NamedDecl>(Canon))); 22786ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 22796ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 22801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22816ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor return TemplateName(CanonOvl? CanonOvl : Ovl); 22826ebd15e81a4d44ac51c24bffe2705586d5edffeeDouglas Gregor } 22831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 228425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 228525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 228625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 228725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 228825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 22891eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateArgument 22901275ae098acda31fe0e434510c729fcfed0458a1Douglas GregorASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) { 22911275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor switch (Arg.getKind()) { 22921275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Null: 22931275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 22941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22951275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Expression: 22961275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Build canonical expression? 22971275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 22981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22991275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Declaration: 23001275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(SourceLocation(), 23011275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Arg.getAsDecl()->getCanonicalDecl()); 23021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23031275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Integral: 23041275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(SourceLocation(), 23051275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor *Arg.getAsIntegral(), 23061275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getIntegralType())); 23071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23081275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Type: 23091275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(SourceLocation(), 23101275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getAsType())); 23111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23121275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Pack: { 23131275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Allocate in ASTContext 23141275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument *CanonArgs = new TemplateArgument[Arg.pack_size()]; 23151275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor unsigned Idx = 0; 23161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (TemplateArgument::pack_iterator A = Arg.pack_begin(), 23171275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor AEnd = Arg.pack_end(); 23181275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor A != AEnd; (void)++A, ++Idx) 23191275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs[Idx] = getCanonicalTemplateArgument(*A); 23201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23211275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument Result; 23221275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Result.setArgumentPack(CanonArgs, Arg.pack_size(), false); 23231275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Result; 23241275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 23251275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 23261275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 23271275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Silence GCC warning 23281275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor assert(false && "Unhandled template argument kind"); 23291275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(); 23301275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor} 23311275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 2332d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 2333d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 23341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!NNS) 2335d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2336d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2337d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 2338d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 2339d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 23401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 2341d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 2342d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 2343d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2344d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 2345d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 2346d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 2347d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 2348d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2349d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 2350d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 2351d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 23521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 0, 23531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 2354d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 2355d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2356d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2357d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 2358d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 2359d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2360d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2361d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2362d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2363d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2364d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2365d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2366c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2367c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2368c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 23690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T.hasQualifiers()) { 2370c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2371c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2372c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2373c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 23741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Handle the common negative case fast. 2376c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 23770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!isa<ArrayType>(CType)) 2378c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 23791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Apply any qualifiers from the array type to the element type. This 2381c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2382c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 23831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2384c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2385c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 238650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor // we must propagate them down into the element type. 23870953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 23880953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 23890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ty = Qs.strip(T.getDesugaredType()); 23901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2391c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2392c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 23930953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ATy == 0 || Qs.empty()) 2394c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 23951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2396c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2397c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2398c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2399c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 24000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(ATy->getElementType(), Qs); 24011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2402c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2403c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2404c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 24050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2406c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2407c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2408c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 24090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 2410898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 24111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const DependentSizedArrayType *DSAT 2412898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2413898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 24141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getDependentSizedArrayType(NewEltTy, 2415bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2416bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 2417898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 24180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 24197e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 24201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2421c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 24227e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 2423bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 24240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getSizeExpr()->Retain() : 0, 2425c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 24260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 24277e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 242877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 242977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 243077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2431e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2432e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2433e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2434e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2435e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2436e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2437e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2438c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2439c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2440c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2441c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2442c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2443c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 24441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2445c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2446e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2447e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 24480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getQualifiedType(PtrTy, PrettyArrayType->getIndexTypeQualifiers()); 2449e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2450e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 24515e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas GregorQualType ASTContext::getBaseElementType(QualType QT) { 24520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 24535e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor while (true) { 24540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *UT = Qs.strip(QT); 24555e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor if (const ArrayType *AT = getAsArrayType(QualType(UT,0))) { 24565e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QT = AT->getElementType(); 24576dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump } else { 24580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qs.apply(QT); 24595e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 24605e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 24615e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor} 24625e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor 2463fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders CarlssonQualType ASTContext::getBaseElementType(const ArrayType *AT) { 2464fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson QualType ElemTy = AT->getElementType(); 24651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2466fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson if (const ArrayType *AT = getAsArrayType(ElemTy)) 2467fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson return getBaseElementType(AT); 24681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24696183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 24706183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 24716183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 24720de78998e7bda473b408437053e48661b510d453Fariborz Jahanian/// getConstantArrayElementCount - Returns number of constant array elements. 24731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpuint64_t 24740de78998e7bda473b408437053e48661b510d453Fariborz JahanianASTContext::getConstantArrayElementCount(const ConstantArrayType *CA) const { 24750de78998e7bda473b408437053e48661b510d453Fariborz Jahanian uint64_t ElementCount = 1; 24760de78998e7bda473b408437053e48661b510d453Fariborz Jahanian do { 24770de78998e7bda473b408437053e48661b510d453Fariborz Jahanian ElementCount *= CA->getSize().getZExtValue(); 24780de78998e7bda473b408437053e48661b510d453Fariborz Jahanian CA = dyn_cast<ConstantArrayType>(CA->getElementType()); 24790de78998e7bda473b408437053e48661b510d453Fariborz Jahanian } while (CA); 24800de78998e7bda473b408437053e48661b510d453Fariborz Jahanian return ElementCount; 24810de78998e7bda473b408437053e48661b510d453Fariborz Jahanian} 24820de78998e7bda473b408437053e48661b510d453Fariborz Jahanian 24835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 24845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2485a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2486183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) 24875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2488a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2489183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall assert(T->getAs<BuiltinType>() && "getFloatingRank(): not a floating type"); 2490183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall switch (T->getAs<BuiltinType>()->getKind()) { 2491a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 24925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 24935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 24945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 24955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 24975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 24991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// point or a complex type (based on typeDomain/typeSize). 2500716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2501716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 25021361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 25031361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 25041361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 25051361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 25061361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2507716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2508f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2509f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2510f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2511f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2512f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 25131361b11066239ea15764a2a844405352d87296b3Chris Lattner 25141361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 25151361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 25161361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 25171361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 25181361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 25191361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 25205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 25225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 25247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 25257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 25261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 2527a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2528a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2529a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 25301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2531a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2532fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2533a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2534fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2535fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 25365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 25375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2538f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2539f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2540f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2541f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2542467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(T->isCanonicalUnqualified() && "T should be canonicalized"); 2543f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2544f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman T = ET->getDecl()->getIntegerType().getTypePtr(); 2545f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2546a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2547a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2548a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2549f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2550f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2551f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2552f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2553f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2554f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2555f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 2556f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 2557f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 25581b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) 2559f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 2560f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2561f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 25627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 25637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2564f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 25657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 25667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 25677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 25687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2569f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 25707cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 25717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2572f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 25737cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 25747cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2575f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 25767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 25777cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2578f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 25797cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 25807cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2581f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 25822df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 25832df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 25842df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2585f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2586f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2587f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 258804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \brief Whether this is a promotable bitfield reference according 258904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// to C99 6.3.1.1p2, bullet 2 (and GCC extensions). 259004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// 259104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \returns the type this bit-field will promote to, or NULL if no 259204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// promotion occurs. 259304e8357f6801e9ff52673e7e899a67bbabf9de93Eli FriedmanQualType ASTContext::isPromotableBitField(Expr *E) { 259404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman FieldDecl *Field = E->getBitField(); 259504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (!Field) 259604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 259704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 259804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman QualType FT = Field->getType(); 259904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 260004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman llvm::APSInt BitWidthAP = Field->getBitWidth()->EvaluateAsInt(*this); 260104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t BitWidth = BitWidthAP.getZExtValue(); 260204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 260304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // GCC extension compatibility: if the bit-field size is less than or equal 260404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // to the size of int, it gets promoted no matter what its type is. 260504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // For instance, unsigned long bf : 4 gets promoted to signed int. 260604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth < IntSize) 260704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return IntTy; 260804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 260904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth == IntSize) 261004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return FT->isSignedIntegerType() ? IntTy : UnsignedIntTy; 261104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 261204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // Types bigger than int are not subject to promotions, and therefore act 261304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // like the base type. 261404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // FIXME: This doesn't quite match what gcc does, but what gcc does here 261504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // is ridiculous. 261604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 261704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman} 261804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 2619a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// getPromotedIntegerType - Returns the type that Promotable will 2620a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// promote to: C99 6.3.1.1p2, assuming that Promotable is a promotable 2621a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// integer type. 2622a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType ASTContext::getPromotedIntegerType(QualType Promotable) { 2623a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(!Promotable.isNull()); 2624a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isPromotableIntegerType()); 2625a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (Promotable->isSignedIntegerType()) 2626a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return IntTy; 2627a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t PromotableSize = getTypeSize(Promotable); 2628a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 2629a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize); 2630a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return (PromotableSize != IntSize) ? IntTy : UnsignedIntTy; 2631a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 2632a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 26331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getIntegerTypeOrder - Returns the highest ranked integer type: 26347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 26351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 26367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2637f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2638f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 26397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 26401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2641f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2642f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 26431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 26457cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 26461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 26487cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 26497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 26507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 26511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 26537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 26547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 26557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 26567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 26571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26587cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 26597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 26601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 26617cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 26627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 26637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 26647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 26657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 26667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 26671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 26697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 26701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 26717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 26725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 267371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 26741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// getCFConstantStringType - Return the type used for constant CFStrings. 267571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 267671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 26771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CFConstantStringTypeDecl = 26781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2679df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 2680f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 26811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 268271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 26830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[0] = getPointerType(IntTy.withConst()); 2684f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2685f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 268671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 26870953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[2] = getPointerType(CharTy.withConst()); 268871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 26891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[3] = LongTy; 26901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 269144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 269244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 26931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 269444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 2695a1d5662d96465f0fddf8819d245da4d19b892effArgyrios Kyrtzidis FieldTypes[i], /*DInfo=*/0, 26961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 26974afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 269817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 269944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 270044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 270144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 270271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 27031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 270471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 27058467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2706b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2707319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 27086217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2709319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2710319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2711319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2712319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 27131eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getObjCFastEnumerationStateType() { 2714bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 271544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 271644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 271744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 27181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2719bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2720bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2721de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff getPointerType(ObjCIdTypedefType), 2722bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2723bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2724bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2725bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 27261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 272744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 27281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, 27291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCFastEnumerationStateTypeDecl, 27301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation(), 0, 2731a1d5662d96465f0fddf8819d245da4d19b892effArgyrios Kyrtzidis FieldTypes[i], /*DInfo=*/0, 27321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 27334afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 273417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 273544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 27361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 273744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2738bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 27391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2740bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2741bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2742bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2743adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike StumpQualType ASTContext::getBlockDescriptorType() { 2744adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump if (BlockDescriptorType) 2745adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 2746adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2747adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 2748adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Needs the FlagAppleBlock bit. 2749adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T = RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2750adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get("__block_descriptor")); 2751adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2752adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 2753adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2754adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2755adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2756adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2757adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 2758adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "reserved", 2759083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size" 2760adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2761adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2762adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 2; ++i) { 2763adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldDecl *Field = FieldDecl::Create(*this, 2764adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T, 2765adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump SourceLocation(), 2766adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 2767adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldTypes[i], /*DInfo=*/0, 2768adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*BitWidth=*/0, 2769adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*Mutable=*/false); 2770adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 2771adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 2772adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2773adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->completeDefinition(*this); 2774adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2775adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = T; 2776adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2777adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 2778adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 2779adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2780adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stumpvoid ASTContext::setBlockDescriptorType(QualType T) { 2781adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const RecordType *Rec = T->getAs<RecordType>(); 2782adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump assert(Rec && "Invalid BlockDescriptorType"); 2783adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = Rec->getDecl(); 2784adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 2785adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2786083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike StumpQualType ASTContext::getBlockDescriptorExtendedType() { 2787083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump if (BlockDescriptorExtendedType) 2788083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 2789083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2790083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump RecordDecl *T; 2791083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump // FIXME: Needs the FlagAppleBlock bit. 2792083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T = RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2793083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump &Idents.get("__block_descriptor_withcopydispose")); 2794083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2795083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump QualType FieldTypes[] = { 2796083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 2797083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 2798083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy), 2799083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy) 2800083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 2801083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2802083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const char *FieldNames[] = { 2803083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "reserved", 2804083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size", 2805083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "CopyFuncPtr", 2806083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "DestroyFuncPtr" 2807083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 2808083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2809083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump for (size_t i = 0; i < 4; ++i) { 2810083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump FieldDecl *Field = FieldDecl::Create(*this, 2811083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T, 2812083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump SourceLocation(), 2813083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump &Idents.get(FieldNames[i]), 2814083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump FieldTypes[i], /*DInfo=*/0, 2815083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*BitWidth=*/0, 2816083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*Mutable=*/false); 2817083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T->addDecl(Field); 2818083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump } 2819083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2820083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T->completeDefinition(*this); 2821083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2822083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = T; 2823083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2824083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 2825083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 2826083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2827083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stumpvoid ASTContext::setBlockDescriptorExtendedType(QualType T) { 2828083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const RecordType *Rec = T->getAs<RecordType>(); 2829083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump assert(Rec && "Invalid BlockDescriptorType"); 2830083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = Rec->getDecl(); 2831083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 2832083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2833af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stumpbool ASTContext::BlockRequiresCopying(QualType Ty) { 2834af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isBlockPointerType()) 2835af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 2836af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (isObjCNSObjectType(Ty)) 2837af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 2838af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isObjCObjectPointerType()) 2839af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 2840af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return false; 2841af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump} 2842af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2843af7b44d847d3e44c43346d508b2e55a6254b6e9dMike StumpQualType ASTContext::BuildByRefType(const char *DeclName, QualType Ty) { 2844af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // type = struct __Block_byref_1_X { 2845ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // void *__isa; 2846af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // struct __Block_byref_1_X *__forwarding; 2847ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __flags; 2848ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __size; 284938e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__copy_helper; // as needed 285038e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__destroy_help // as needed 2851af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // int X; 2852ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // } * 2853ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2854af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump bool HasCopyAndDispose = BlockRequiresCopying(Ty); 2855af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2856af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // FIXME: Move up 2857af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump static int UniqueBlockByRefTypeID = 0; 2858af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump char Name[36]; 2859af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump sprintf(Name, "__Block_byref_%d_%s", ++UniqueBlockByRefTypeID, DeclName); 2860af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump RecordDecl *T; 2861af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T = RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2862af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump &Idents.get(Name)); 2863af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->startDefinition(); 2864af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType Int32Ty = IntTy; 2865af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump assert(getIntWidth(IntTy) == 32 && "non-32bit int not supported"); 2866af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType FieldTypes[] = { 2867af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 2868af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(getTagDeclType(T)), 2869af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 2870af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 2871af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 2872af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 2873af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Ty 2874af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 2875af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2876af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump const char *FieldNames[] = { 2877af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__isa", 2878af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__forwarding", 2879af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__flags", 2880af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__size", 2881af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__copy_helper", 2882af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__destroy_helper", 2883af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump DeclName, 2884af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 2885af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2886af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump for (size_t i = 0; i < 7; ++i) { 2887af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (!HasCopyAndDispose && i >=4 && i <= 5) 2888af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump continue; 2889af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 2890af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump &Idents.get(FieldNames[i]), 2891af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldTypes[i], /*DInfo=*/0, 2892af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump /*BitWidth=*/0, /*Mutable=*/false); 2893af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->addDecl(Field); 2894af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump } 2895af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2896af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->completeDefinition(*this); 2897af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 2898af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return getPointerType(getTagDeclType(T)); 2899ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump} 2900ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2901ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2902ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike StumpQualType ASTContext::getBlockParmType( 2903083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump bool BlockHasCopyDispose, 2904ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump llvm::SmallVector<const Expr *, 8> &BlockDeclRefDecls) { 2905adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Move up 2906adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump static int UniqueBlockParmTypeID = 0; 2907adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump char Name[36]; 2908adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump sprintf(Name, "__block_literal_%u", ++UniqueBlockParmTypeID); 2909adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 2910adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T = RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2911adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(Name)); 2912adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 2913adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 2914adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 2915adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 2916adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 2917083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump (BlockHasCopyDispose ? 2918083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorExtendedType()) : 2919083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorType())) 2920adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2921adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2922adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 2923adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__isa", 2924adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__flags", 2925adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__reserved", 2926adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__FuncPtr", 2927adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__descriptor" 2928adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2929adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2930adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 5; ++i) { 2931ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 2932adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 2933adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldTypes[i], /*DInfo=*/0, 2934ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 2935ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump T->addDecl(Field); 2936ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 2937ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2938ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump for (size_t i = 0; i < BlockDeclRefDecls.size(); ++i) { 2939ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const Expr *E = BlockDeclRefDecls[i]; 2940ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(E); 2941ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump clang::IdentifierInfo *Name = 0; 2942ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE) { 2943ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const ValueDecl *D = BDRE->getDecl(); 2944ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump Name = &Idents.get(D->getName()); 2945ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 2946ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump QualType FieldType = E->getType(); 2947ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2948ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE && BDRE->isByRef()) 2949af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType = BuildByRefType(BDRE->getDecl()->getNameAsCString(), 2950af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType); 2951ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2952ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 2953ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump Name, FieldType, /*DInfo=*/0, 2954ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 2955adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 2956adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 2957adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2958adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->completeDefinition(*this); 2959ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 2960ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump return getPointerType(getTagDeclType(T)); 2961adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 2962adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2963319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 29646217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2965319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 2966319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 2967319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2968319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2969e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 2970e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 29712d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 2972e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 2973bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 2974bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 29751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 297685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 297785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 297885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2979a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 298033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 2981a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 298298be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 29831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 298433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 298533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 298698be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 298733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 298833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 298998be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 299098be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 299133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 299233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2993a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 299433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 29951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 2996e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2997c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2998ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 2999a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 300033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 30010d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 300233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 300333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 300433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 300533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 300698be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 300733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 300833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 300933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 301089951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 301189951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 301289951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 301389951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 3014a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 301533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 301633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 301733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 301833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 301933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 30201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 302133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 302233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 302389951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 302489951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 302589951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 30261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType PType = PVDecl->getOriginalType(); 30274306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 3028ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 3029ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 3030ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 3031bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 3032ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3033ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 3034ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3035ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 303633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 30374306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 30380d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 303933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 3040a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 304133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 304233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 304333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 3044c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 304583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 3046c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 3047c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 30481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Property attributes are stored as a comma-delimited C string. The simple 30491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// attributes readonly and bycopy are encoded as single characters. The 30501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parametrized attributes, getter=name, setter=name, and ivar=name, are 30511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// encoded as single characters, followed by an identifier. Property types 30521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// are also encoded as a parametrized attribute. The characters used to encode 305383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 305483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 305583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 305683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 305783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 305883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 305983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 306083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 306183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 306283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 306383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 306483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 306583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 306683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 306783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 306883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 30691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 3070c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 3071e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3072c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 3073c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 3074c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 3075c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3076c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 3077c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 30781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCCategoryImplDecl *CID = 3079c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 3080c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 308117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 3082653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3083c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3084c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3085c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3086c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3087c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3088c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3089c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3090c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3091c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3092c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 309361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 3094c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 309517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 3096653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3097c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3098c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3099c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3100c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3101c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3102c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3103c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3104c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 31051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3106c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3107c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3108c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3109c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3110c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 3111c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3112c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 3113090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 3114090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 31151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 3116090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 3117090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 3118c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3119c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 3120c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 3121c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3122c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 3123c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 3124c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 31251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case ObjCPropertyDecl::Retain: S += ",&"; break; 3126c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3127c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3128c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3129c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 3130c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 3131c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 3132c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 3133c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3134090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 3135090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 31361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3137c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 3138c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 3139077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 3140c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3141c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3142c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 3143c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 3144077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 3145c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3146c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3147c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 3148c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 3149c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 315039f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 3151c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3152c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3153c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 3154c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 3155c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3156a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 31571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Another legacy compatibility encoding: 32-bit longs are encoded as 31581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 'l' or 'L' , but not always. For typedefs, we need to use 3159a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 3160a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 3161a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 31628e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(PointeeTy.getTypePtr())) { 3163183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = PointeeTy->getAs<BuiltinType>()) { 3164c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 3165c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3166a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 31671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else 3168c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 3169c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3170a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 3171a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3172a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3173a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 3174a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 31757d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 3176153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 317782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 317882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 317982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 318082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 31811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(T, S, true, true, Field, 31825b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 318382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 318482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 31851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void EncodeBitField(const ASTContext *Context, std::string& S, 3186153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 31878b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 31888b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 31898b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 31909a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 31918b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 31928b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 31938b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 31948b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 319501eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar// FIXME: Use SmallString for accumulating string. 319682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 319782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 319882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 3199153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 3200090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 32016ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 3202183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = T->getAs<BuiltinType>()) { 3203ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD && FD->isBitField()) 3204ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return EncodeBitField(this, S, FD); 3205ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner char encoding; 3206ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner switch (BT->getKind()) { 32071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: assert(0 && "Unhandled builtin type kind"); 3208ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 3209ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 3210ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_U: 3211ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 3212ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 3213ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 32141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::ULong: 32151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 32161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 321772696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 3218ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 3219ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 3220ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_S: 3221ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 3222ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Short: encoding = 's'; break; 3223ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 32241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::Long: 32251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 32261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 3227ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner break; 3228ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 3229ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 3230ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 3231ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 3232ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 323343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 32341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3235ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += encoding; 3236ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3237ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 32381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3239183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) { 3240c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 32411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 3242c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 3243ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3244ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 32451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32466217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const PointerType *PT = T->getAs<PointerType>()) { 324785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 3248a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 3249a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 3250a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 3251a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 32521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Also, do not emit the 'r' for anything but the outermost type! 32538e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(T.getTypePtr())) { 3254a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 3255a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3256a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3257a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 32589fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (OutermostType) { 3259a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 32606217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek while (P->getAs<PointerType>()) 32616217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek P = P->getAs<PointerType>()->getPointeeType(); 3262a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 3263a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3264a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3265a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3266a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3267a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 3268a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 3269a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 3270a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 3271a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 3272a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 3273a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 3274a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 3275a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 3276a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3277a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 327814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (isObjCSelType(PointeeTy)) { 32798baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 32808baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 3281c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 32821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 328385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 328485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 328585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 3286e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 328785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 328885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 328985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 32906217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek } else if (const RecordType *RTy = PointeeTy->getAs<RecordType>()) { 32919533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_class *" to "#". 32929533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { 32939533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '#'; 32949533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 32959533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 32969533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_object *" to "@". 32979533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { 32989533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '@'; 32999533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 33009533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 33019533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // fall through... 330285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 330385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 3304a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 3305a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 33061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 330743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 3308ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3309ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 33101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3311ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ArrayType *AT = 3312ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Ignore type qualifiers etc. 3313ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 3314559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 3315559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 3316559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 3317559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 33181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3319559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3320559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 3321559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 33221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3323559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 3324559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 3325559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 3326559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 3327559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 3328559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 3329559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 33301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3332559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3333559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 3334559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 3335ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3336ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 33371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3338183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (T->getAs<FunctionType>()) { 3339c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 3340ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3341ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 33421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33436217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *RTy = T->getAs<RecordType>()) { 334482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 3345d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 3346502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 3347502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 3348502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 3349502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 3350502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 3351502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 33520d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 33537d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 335417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 335517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 335644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 335743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 3358d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 335944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 3360d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 3361d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 33621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3363d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 336443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 33651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 336643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 3367d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 3368a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 3369a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 33701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(qt, S, false, true, 337143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 3372d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 33737d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 33746de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 3375d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 3376ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3377ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 33781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3379ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isEnumeralType()) { 33808b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 33818b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 33828b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 33838b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 3384ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3385ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 33861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3387ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isBlockPointerType()) { 338821a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 3389ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3390ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 33911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (const ObjCInterfaceType *OIT = T->getAs<ObjCInterfaceType>()) { 339343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 33940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ObjCInterfaceDecl *OI = OIT->getDecl(); 339543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 339643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 339743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 339843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 3399f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 340043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 3401f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 340243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 34031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 340443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 340543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 34061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 340743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 340843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 340943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 3410ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 341143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 34121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3413183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = T->getAs<ObjCObjectPointerType>()) { 341414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (OPT->isObjCIdType()) { 341514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '@'; 341614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3417ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 34181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3419ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCClassType()) { 342014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '#'; 342114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3422ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 34231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3424ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCQualifiedIdType()) { 34251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(getObjCIdType(), S, 342614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandPointedToStructures, 342714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandStructures, FD); 342814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (FD || EncodingProperty) { 342914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Note that we do extended encoding of protocol qualifer list 343014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Only when doing ivar or property encoding. 343114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 343267ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 343367ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 343414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '<'; 343514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += (*I)->getNameAsString(); 343614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '>'; 343714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 343814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 343914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 344014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3441ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 34421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3443ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner QualType PointeeTy = OPT->getPointeeType(); 3444ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (!EncodingProperty && 3445ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner isa<TypedefType>(PointeeTy.getTypePtr())) { 3446ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Another historical/compatibility reason. 34471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We encode the underlying type which comes out as 3448ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // {...}; 3449ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '^'; 34501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, 34511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump false, ExpandPointedToStructures, 3452ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner NULL); 345314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 345414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 3455ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3456ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '@'; 3457ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD || EncodingProperty) { 3458ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 345967ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff S += OPT->getInterfaceDecl()->getNameAsCString(); 346067ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 346167ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 3462ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '<'; 3463ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += (*I)->getNameAsString(); 3464ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '>'; 34651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3466ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 3467ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3468ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3469ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 34701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3471ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner assert(0 && "@encode for type not implemented!"); 347285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 347385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 34741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 3475ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 3476ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 3477ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 3478ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 3479ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 3480ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 3481ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 3482ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 3483ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 3484ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 3485ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 3486ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 3487ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 3488ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 3489ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 3490ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setBuiltinVaListType(QualType T) { 3491b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 34921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3493b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 3494b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 3495b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3496ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCIdType(QualType T) { 3497de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = T; 34987e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 34997e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 3500ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCSelType(QualType T) { 3501319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCSelType = T; 3502319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3503183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const TypedefType *TT = T->getAs<TypedefType>(); 3504319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 3505319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 3506319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 3507b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3508b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 35096217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *ptr = TD->getUnderlyingType()->getAs<PointerType>(); 3510c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 3511c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 3512b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 3513c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 3514c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 3515b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 3516b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 3517b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3518ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCProtoType(QualType QT) { 3519a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 3520390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 3521390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 3522ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCClassType(QualType T) { 3523de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = T; 35248baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 35258baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3526a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 35271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(ObjCConstantStringType.isNull() && 35282198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 35291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3530a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 35312198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 35322198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 35337532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a qualified 35347532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c std::vector. 35351eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 35367532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool TemplateKeyword, 35377532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateDecl *Template) { 35387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 35397532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 35407532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 35417532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 35427532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName *QTN = 35437532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 35447532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (!QTN) { 35457532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 35467532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 35477532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 35487532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 35497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 35507532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 35517532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3552d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// \brief Retrieve the template name that represents a qualified 3553d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// template name such as \c std::vector. 35541eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 3555d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor bool TemplateKeyword, 3556d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor OverloadedFunctionDecl *Template) { 3557d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor llvm::FoldingSetNodeID ID; 3558d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 35591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3560d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor void *InsertPos = 0; 3561d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName *QTN = 3562d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3563d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor if (!QTN) { 3564d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 3565d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 3566d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor } 35671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3568d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor return TemplateName(QTN); 3569d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor} 3570d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 35717532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 35727532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 35731eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 35747532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 35751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((!NNS || NNS->isDependent()) && 35763b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor "Nested name specifier must be dependent"); 35777532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 35787532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 35797532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 35807532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 35817532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 35827532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 35837532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 35847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 35857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 35867532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 35877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 35887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 35897532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 35907532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 35917532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 35927532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 35937532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 35947532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 35957532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 35967532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 35977532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 35987532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 35997532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3600b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 3601d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 3602d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 3603d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 3604b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 36051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case TargetInfo::NoInt: return QualType(); 3606b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 3607b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 3608b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 3609b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 3610b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 3611b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 3612b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 3613b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 3614b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 3615b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 3616b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 3617b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 3618b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 3619b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3620b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3621b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 3622b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3623b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3624fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 3625fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 3626fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 3627f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff/// FIXME: Move to Type. 3628fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 3629fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 3630fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 3631fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 363240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 3633fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 3634fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 36351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return false; 3636fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 3637fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 36384fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 36394fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 36404fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 36410953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualifiers::GC ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 36420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttrs = Qualifiers::GCNone; 36434fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 36444fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 3645b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 36464fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 36471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // (or pointers to them) be treated as though they were declared 3648a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 36490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GCAttrs == Qualifiers::GCNone) { 365075212ee91313bc1b6dd826d9b173541bc4016539Fariborz Jahanian if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) 36510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttrs = Qualifiers::Strong; 3652a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 36536217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek return getObjCGCAttrKind(Ty->getAs<PointerType>()->getPointeeType()); 3654a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 3655c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 3656c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 3657f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 36580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qualifiers::GCNone; 36594fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 3660b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 36614fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 36624fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 36636ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 36646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 36656ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 3666770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 36671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// areCompatVectorTypes - Return true if the two specified vector types are 36686ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 36696ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 36706ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 3671467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified()); 36726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 367361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 36746ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 36756ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 36764084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 36774084c306635b70f37029dca938444e6013f08684Steve Naroff// ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. 36784084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 36794084c306635b70f37029dca938444e6013f08684Steve Naroff 36804084c306635b70f37029dca938444e6013f08684Steve Naroff/// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the 36814084c306635b70f37029dca938444e6013f08684Steve Naroff/// inheritance hierarchy of 'rProto'. 36820fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanianbool ASTContext::ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, 36830fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian ObjCProtocolDecl *rProto) { 36844084c306635b70f37029dca938444e6013f08684Steve Naroff if (lProto == rProto) 368514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return true; 36864084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCProtocolDecl::protocol_iterator PI = rProto->protocol_begin(), 36874084c306635b70f37029dca938444e6013f08684Steve Naroff E = rProto->protocol_end(); PI != E; ++PI) 36884084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 36894084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 36904084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 36914084c306635b70f37029dca938444e6013f08684Steve Naroff} 369214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 36934084c306635b70f37029dca938444e6013f08684Steve Naroff/// QualifiedIdConformsQualifiedId - compare id<p,...> with id<p1,...> 36944084c306635b70f37029dca938444e6013f08684Steve Naroff/// return true if lhs's protocols conform to rhs's protocol; false 36954084c306635b70f37029dca938444e6013f08684Steve Naroff/// otherwise. 36964084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::QualifiedIdConformsQualifiedId(QualType lhs, QualType rhs) { 36974084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isObjCQualifiedIdType() && rhs->isObjCQualifiedIdType()) 36984084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(lhs, rhs, false); 36994084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 37004084c306635b70f37029dca938444e6013f08684Steve Naroff} 37014084c306635b70f37029dca938444e6013f08684Steve Naroff 37024084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an 37034084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIDType. 37044084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::ObjCQualifiedIdTypesAreCompatible(QualType lhs, QualType rhs, 37054084c306635b70f37029dca938444e6013f08684Steve Naroff bool compare) { 37064084c306635b70f37029dca938444e6013f08684Steve Naroff // Allow id<P..> and an 'id' or void* type in all cases. 37071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isVoidPointerType() || 37084084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->isObjCIdType() || lhs->isObjCClassType()) 37094084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 37101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else if (rhs->isVoidPointerType() || 37114084c306635b70f37029dca938444e6013f08684Steve Naroff rhs->isObjCIdType() || rhs->isObjCClassType()) 37124084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 37134084c306635b70f37029dca938444e6013f08684Steve Naroff 37144084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsQID = lhs->getAsObjCQualifiedIdType()) { 3715183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *rhsOPT = rhs->getAs<ObjCObjectPointerType>(); 37161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37174084c306635b70f37029dca938444e6013f08684Steve Naroff if (!rhsOPT) return false; 37181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37194084c306635b70f37029dca938444e6013f08684Steve Naroff if (rhsOPT->qual_empty()) { 37201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a unqualified interface pointer "NSString*", 37214084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 37224084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 37234084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 37244084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 37254084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 37264084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 37274084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 37280fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (!rhsID->ClassImplementsProtocol(*I, true)) 37294084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 37304084c306635b70f37029dca938444e6013f08684Steve Naroff } 37314084c306635b70f37029dca938444e6013f08684Steve Naroff } 37324084c306635b70f37029dca938444e6013f08684Steve Naroff // If there are no qualifiers and no interface, we have an 'id'. 37334084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 37344084c306635b70f37029dca938444e6013f08684Steve Naroff } 37351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 37364084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 37374084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 37384084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 37394084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 3740de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 3741de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // when comparing an id<P> on lhs with a static type on rhs, 3742de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // see if static class implements all of id's protocols, directly or 3743de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // through its super class and categories. 37444084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsOPT->qual_begin(), 37454084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsOPT->qual_end(); J != E; ++J) { 37464084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 37474084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 37484084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 37494084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 37508f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 37518f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 3752de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 37531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a qualified interface pointer "NSString<P>*", 37544084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 37554084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 37564084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 37574084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 37584084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 37594084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 37604084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 37610fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (rhsID->ClassImplementsProtocol(*I, true)) { 37624084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 37634084c306635b70f37029dca938444e6013f08684Steve Naroff break; 37644084c306635b70f37029dca938444e6013f08684Steve Naroff } 37654084c306635b70f37029dca938444e6013f08684Steve Naroff } 37664084c306635b70f37029dca938444e6013f08684Steve Naroff } 37674084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 3768de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return false; 3769de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 37701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3771de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return true; 3772de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 37731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37744084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsQID = rhs->getAsObjCQualifiedIdType(); 37754084c306635b70f37029dca938444e6013f08684Steve Naroff assert(rhsQID && "One of the LHS/RHS should be id<x>"); 37764084c306635b70f37029dca938444e6013f08684Steve Naroff 37771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCObjectPointerType *lhsOPT = 37784084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->getAsObjCInterfacePointerType()) { 37794084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhsOPT->qual_empty()) { 37804084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 37814084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *lhsID = lhsOPT->getInterfaceDecl()) { 37824084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = rhsQID->qual_begin(), 37834084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); I != E; ++I) { 37844084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 37854084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 37864084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 37870fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (lhsID->ClassImplementsProtocol(*I, true)) { 37884084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 37894084c306635b70f37029dca938444e6013f08684Steve Naroff break; 37904084c306635b70f37029dca938444e6013f08684Steve Naroff } 37914084c306635b70f37029dca938444e6013f08684Steve Naroff } 37924084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 37934084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 37944084c306635b70f37029dca938444e6013f08684Steve Naroff } 37954084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 37964084c306635b70f37029dca938444e6013f08684Steve Naroff } 37971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 37984084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsOPT->qual_begin(), 37994084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsOPT->qual_end(); I != E; ++I) { 38004084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 38014084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 38024084c306635b70f37029dca938444e6013f08684Steve Naroff 38034084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 38044084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 38054084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 38064084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsQID->qual_begin(), 38074084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); J != E; ++J) { 38084084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 38094084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 38104084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 38114084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 38124084c306635b70f37029dca938444e6013f08684Steve Naroff break; 38134084c306635b70f37029dca938444e6013f08684Steve Naroff } 38144084c306635b70f37029dca938444e6013f08684Steve Naroff } 38154084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 38164084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 38174084c306635b70f37029dca938444e6013f08684Steve Naroff } 38184084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 38194084c306635b70f37029dca938444e6013f08684Steve Naroff } 38204084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 38214084c306635b70f37029dca938444e6013f08684Steve Naroff} 38224084c306635b70f37029dca938444e6013f08684Steve Naroff 38234084c306635b70f37029dca938444e6013f08684Steve Naroff/// canAssignObjCInterfaces - Return true if the two interface types are 38244084c306635b70f37029dca938444e6013f08684Steve Naroff/// compatible for assignment from RHS to LHS. This handles validation of any 38254084c306635b70f37029dca938444e6013f08684Steve Naroff/// protocol qualifiers on the LHS or RHS. 38264084c306635b70f37029dca938444e6013f08684Steve Naroff/// 38274084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 38284084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *RHSOPT) { 38294084c306635b70f37029dca938444e6013f08684Steve Naroff // If either type represents the built-in 'id' or 'Class' types, return true. 38304084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCBuiltinType() || RHSOPT->isObjCBuiltinType()) 38314084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 38324084c306635b70f37029dca938444e6013f08684Steve Naroff 38334084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 38341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 38351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType(RHSOPT,0), 38364084c306635b70f37029dca938444e6013f08684Steve Naroff false); 38374084c306635b70f37029dca938444e6013f08684Steve Naroff 38384084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 38394084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 38404084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHS && RHS) // We have 2 user-defined types. 38414084c306635b70f37029dca938444e6013f08684Steve Naroff return canAssignObjCInterfaces(LHS, RHS); 38421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38434084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 384414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 384514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 38463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 38473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 38486ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 38496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 38506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 38516ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 38521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38536ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 38546ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 3855c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (LHS->getNumProtocols() == 0) 38566ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 38571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38586ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 38596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 3860c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (RHS->getNumProtocols() == 0) 38616ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 38621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3863c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator LHSPI = LHS->qual_begin(), 3864c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff LHSPE = LHS->qual_end(); 386591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 386691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 386791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 386891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 386991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 3870c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator RHSPI = RHS->qual_begin(), 38714084c306635b70f37029dca938444e6013f08684Steve Naroff RHSPE = RHS->qual_end(); 38728f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff RHSPI != RHSPE; RHSPI++) { 38738f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 387491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 38758f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 38768f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 387791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 387891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 387991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 388091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 388191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 388291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 388391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 38846ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 38856ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 3886389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 3887389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 3888183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *LHSOPT = LHS->getAs<ObjCObjectPointerType>(); 3889183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *RHSOPT = RHS->getAs<ObjCObjectPointerType>(); 38901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 389114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (!LHSOPT || !RHSOPT) 3892389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 389314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 389414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 389514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff canAssignObjCInterfaces(RHSOPT, LHSOPT); 3896389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 3897389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 38981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 3899ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 39001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C99 6.2.7p1: Two types have compatible types if their types are the 3901ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 39023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 39033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 39043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 39053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39063d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 3907183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *lbase = lhs->getAs<FunctionType>(); 3908183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *rbase = rhs->getAs<FunctionType>(); 390972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 391072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 39113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 39123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 39133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 39153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 39163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 391761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 391861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 391961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 392061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 39216dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump // FIXME: double check this 39222455636163fdd18581d7fdae816433f886d88213Mike Stump bool NoReturn = lbase->getNoReturnAttr() || rbase->getNoReturnAttr(); 39232455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != lbase->getNoReturnAttr()) 39242455636163fdd18581d7fdae816433f886d88213Mike Stump allLTypes = false; 39252455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != rbase->getNoReturnAttr()) 39262455636163fdd18581d7fdae816433f886d88213Mike Stump allRTypes = false; 39271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 3929465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 3930465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 39313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 39323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 39333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 39353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 39363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 39373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 39393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 39403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 39413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39427fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 39437fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 39447fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 39453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 39463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 39473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 39483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 39493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 39503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 39513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 39523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 395361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 395461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 395561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 395661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 39573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 39583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 39593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 39603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 39612455636163fdd18581d7fdae816433f886d88213Mike Stump lproto->isVariadic(), lproto->getTypeQuals(), 39622455636163fdd18581d7fdae816433f886d88213Mike Stump NoReturn); 39633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 39643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 39663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 39673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 396872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 39693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 3970465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 39713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 39723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 39733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 39743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 39753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 39763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 39773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 39783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 39793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 39803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 39813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 39823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 39833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 39843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 39863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 39873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 39882d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getNumArgs(), proto->isVariadic(), 39892d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getTypeQuals(), NoReturn); 39903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 39913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 39933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 39942455636163fdd18581d7fdae816433f886d88213Mike Stump return getFunctionNoProtoType(retType, NoReturn); 39953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 39963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 39973d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 399843d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 399943d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 400043d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 40017c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 40027c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 40033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 40043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 40057c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 40067c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 40076217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RT = LHS->getAs<ReferenceType>()) 4008c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 40096217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType *RT = RHS->getAs<ReferenceType>()) 4010c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 40113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 40123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 40133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 40143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4015f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 40163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 40173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 40183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 40190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the qualifiers are different, the types aren't compatible... mostly. 40200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers LQuals = LHSCan.getQualifiers(); 40210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers RQuals = RHSCan.getQualifiers(); 40220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals != RQuals) { 40230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If any of these qualifiers are different, we have a type 40240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // mismatch. 40250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || 40260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall LQuals.getAddressSpace() != RQuals.getAddressSpace()) 40270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 40280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 40290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Exactly one GC qualifier difference is allowed: __strong is 40300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // okay if the other type has no GC qualifier but is an Objective 40310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // C object pointer (i.e. implicitly strong by default). We fix 40320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // this by pretending that the unqualified type was actually 40330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // qualified __strong. 40340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); 40350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); 40360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements"); 40370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 40380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) 40390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 40400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 40410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Strong && RHSCan->isObjCObjectPointerType()) { 40420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(LHS, getObjCGCQualType(RHS, Qualifiers::Strong)); 40430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 40440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_R == Qualifiers::Strong && LHSCan->isObjCObjectPointerType()) { 40450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(getObjCGCQualType(LHS, Qualifiers::Strong), RHS); 40460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 40473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 40480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 40490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 40500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Okay, qualifiers are equal. 40513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4052852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 4053852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 4054f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 40551adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 40561adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 40571adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 40581adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 40594c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 40604c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 4061a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 4062a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 4063a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 4064a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 40651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4066213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 4067213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 4068213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 40691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40704e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 40714e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 40721adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 40731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // a signed integer type, or an unsigned integer type. 4074183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = LHS->getAs<EnumType>()) { 40753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 40763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 4077bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 4078183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = RHS->getAs<EnumType>()) { 40793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 40803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 4081bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 40821adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 40833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 4084ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 40853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 40864a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 40871adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 408872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 408972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 409072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 409172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 409272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 409372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 409472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 409572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 40967c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 40977c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 409872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 409972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 410072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 410172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 410272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 410372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 410472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 410572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 410672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 410772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 410872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 41091adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 41103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 41113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 41126217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<PointerType>()->getPointeeType(); 41136217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<PointerType>()->getPointeeType(); 41143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 41153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 411607d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 411761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 411807d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 411961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 41203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 41213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 4122c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 4123c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 4124c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 41256217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<BlockPointerType>()->getPointeeType(); 41266217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<BlockPointerType>()->getPointeeType(); 4127c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 4128c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 4129c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 4130c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 4131c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 4132c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 4133c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 4134c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 41351adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 41363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 41373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 41383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 41393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 41403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 41413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 41423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 41433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 41443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 41453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 414661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 414761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 414861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 414961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 41503bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 41513bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 41523bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 41533bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 41543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 41553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 415661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 415761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 415861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 415961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 41603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 41613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 41623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 41633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 41643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 41653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 41663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 41673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 41683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 41693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 41703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 41713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 41723bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 41733bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 41747e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 41757e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 41763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 41771adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 41783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 417972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 418072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 41813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 41821adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 41833cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 41843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 418564cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 418664cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 418764cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 41883cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 41895a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 4190183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (areCompatVectorTypes(LHS->getAs<VectorType>(), RHS->getAs<VectorType>())) 41913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 419261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 419361490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 41945fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 41955a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 41965a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 4197183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* LHSIface = LHS->getAs<ObjCInterfaceType>(); 4198183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* RHSIface = RHS->getAs<ObjCInterfaceType>(); 41995fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 42005fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 42015fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 42025fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 42033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 420461490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 420514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff case Type::ObjCObjectPointer: { 4206183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (canAssignObjCInterfaces(LHS->getAs<ObjCObjectPointerType>(), 4207183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall RHS->getAs<ObjCObjectPointerType>())) 420814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return LHS; 420914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4210bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 421114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 42125a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 42135a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 42145a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 42157532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 42167532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 42177532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 4218ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 421972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 422072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 4221ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 42227192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 42235426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 4224ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 4225ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 422688054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 4227ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 4228ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 4229ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 42306a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (FixedWidthIntType *FWIT = dyn_cast<FixedWidthIntType>(T)) { 4231f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 4232f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 4233f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 4234ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 4235ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4236ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 4237ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 4238ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 42396a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 42406a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // Turn <4 x signed int> -> <4 x unsigned int> 42416a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const VectorType *VTy = T->getAs<VectorType>()) 42426a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner return getVectorType(getCorrespondingUnsignedType(VTy->getElementType()), 42436a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner VTy->getNumElements()); 42446a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 42456a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // For enums, we return the unsigned version of the base type. 42466a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const EnumType *ETy = T->getAs<EnumType>()) 4247ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 42486a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 42496a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner const BuiltinType *BTy = T->getAs<BuiltinType>(); 42506a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner assert(BTy && "Unexpected signed integer type"); 4251ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 4252ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 4253ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 4254ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 4255ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 4256ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 4257ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 4258ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 4259ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 4260ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 4261ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 4262ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 42632df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 42642df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 4265ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 4266ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 4267ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 4268ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 4269ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4270ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 42712cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 42722cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 42732cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 427486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 427586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 427686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 427786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 427886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 427986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 428086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 428186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 42821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 428386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 428486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 428586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 428686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 428786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 42881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 428986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 429086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 429186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 429286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 42931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: Done = true; --Str; break; 429486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 429586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 429686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 429786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 429886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 429986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 430086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 430186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 430286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 430386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 430486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 430586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 430686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 430786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 430886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 430986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 431086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 431186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 43121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 431386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 431486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 431586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 431686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 431786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 431886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 431986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 432086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 432186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 432286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 432386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 432486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 432586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 432686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 432786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 432886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 432986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 433086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 433186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 433286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 433386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 433486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 433586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 433686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 433786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 433886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 433986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 434086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 434186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 434286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 434386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 434486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 434586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 434686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 434786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 434886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 434986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 435086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 435186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 435286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 435386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 435486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 435586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 435686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 435786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 435886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 435986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 436086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 436186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 436286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 436386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 436486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 436586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 436686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 436786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 436886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 436986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 437086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 437186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 437286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 437386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 437486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 437586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 437686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 437786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 437886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 437986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 438086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 438186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 438286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 438386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 438486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 438586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 438686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 438786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 438886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 438986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 439086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 439186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 439286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 439386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 439486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 439586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 43961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 439786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 43981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 439986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 440086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getVectorType(ElementType, NumElements); 440186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 440286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4403d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor case 'X': { 4404d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 4405d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor Type = Context.getComplexType(ElementType); 4406d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor break; 4407d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor } 44089a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'P': 4409c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor Type = Context.getFILEType(); 4410c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor if (Type.isNull()) { 4411f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_stdio; 441286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 441386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4414fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 44159a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'J': 4416f711c41dd9412a8182793259d355c4f6979ed5edMike Stump if (Signed) 4417782fa308a765aeac2acb39c4e697c937ec21185bMike Stump Type = Context.getsigjmp_bufType(); 4418f711c41dd9412a8182793259d355c4f6979ed5edMike Stump else 4419f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Type = Context.getjmp_bufType(); 4420f711c41dd9412a8182793259d355c4f6979ed5edMike Stump 4421fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump if (Type.isNull()) { 4422f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_setjmp; 4423fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump return QualType(); 4424fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump } 4425fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 4426782fa308a765aeac2acb39c4e697c937ec21185bMike Stump } 44271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 442886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 442986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 44301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 443186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 443286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 443386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 443486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 443586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 443686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getPointerType(Type); 443786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 443886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 443986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 444086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 444186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 444286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 44430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Type = Type.withConst(); 444486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 444586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 444686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 44471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 444886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 444986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 445086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 445186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 445286df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 445386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 445486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 44551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 445686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 44571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 445886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 445986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 446086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 446186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 446286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 446386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 446486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 446586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 446686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 446786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 446886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 446986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 44701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 447186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 447286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 447386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 447486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 447586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 447686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 447786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 447886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 447986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 448086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 448186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner TypeStr[0] == '.', 0); 448286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 4483a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4484a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType 4485a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanASTContext::UsualArithmeticConversionsType(QualType lhs, QualType rhs) { 4486a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Perform the usual unary conversions. We do this early so that 4487a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // integral promotions to "int" can allow us to exit early, in the 4488a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // lhs == rhs check. Also, for conversion purposes, we ignore any 4489a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // qualifiers. For example, "const float" and "float" are 4490a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // equivalent. 4491a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isPromotableIntegerType()) 4492a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getPromotedIntegerType(lhs); 4493a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4494a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = lhs.getUnqualifiedType(); 4495a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isPromotableIntegerType()) 4496a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getPromotedIntegerType(rhs); 4497a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4498a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = rhs.getUnqualifiedType(); 4499a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4500a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If both types are identical, no conversion is needed. 4501a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs == rhs) 4502a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 45031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4504a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If either side is a non-arithmetic type (e.g. a pointer), we are done. 4505a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The caller can deal with this (e.g. pointer + int). 4506a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (!lhs->isArithmeticType() || !rhs->isArithmeticType()) 4507a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 45081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 45091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // At this point, we have two different arithmetic types. 45101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4511a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle complex types first (C99 6.3.1.8p1). 4512a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexType() || rhs->isComplexType()) { 4513a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the complex type. 45141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (rhs->isIntegerType() || rhs->isComplexIntegerType()) { 4515a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 4516a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4517a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 45181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isIntegerType() || lhs->isComplexIntegerType()) { 4519a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 4520a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4521a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4522a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // This handles complex/complex, complex/float, or float/complex. 45231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // When both operands are complex, the shorter operand is converted to the 45241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type of the longer, and that is the type of the result. This corresponds 45251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // to what is done when combining two real floating-point operands. 45261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The fun begins when size promotion occur across type domains. 4527a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // From H&S 6.3.4: When one operand is complex and the other is a real 45281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // floating-point type, the less precise type is converted, within it's 4529a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // real or complex domain, to the precision of the other type. For example, 45301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // when combining a "long double" with a "double _Complex", the 4531a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // "double _Complex" is promoted to "long double _Complex". 4532a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 45331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 45341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (result > 0) { // The left side is bigger, convert rhs. 4535a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getFloatingTypeOfSizeWithinDomain(lhs, rhs); 45361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (result < 0) { // The right side is bigger, convert lhs. 4537a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getFloatingTypeOfSizeWithinDomain(rhs, lhs); 45381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 4539a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // At this point, lhs and rhs have the same rank/size. Now, make sure the 4540a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // domains match. This is a requirement for our implementation, C99 4541a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // does not require this promotion. 4542a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs != rhs) { // Domains don't match, we have complex/float mix. 4543a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType()) { // handle "double, _Complex double". 4544a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4545a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { // handle "_Complex double, double". 4546a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4547a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4548a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4549a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // The domain/size match exactly. 4550a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4551a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Now handle "real" floating types (i.e. float, double, long double). 4552a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType() || rhs->isRealFloatingType()) { 4553a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the real floating type. 4554a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isIntegerType()) { 4555a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the lhs floating point type. 4556a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4557a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4558a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isComplexIntegerType()) { 4559a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the complex floating point type. 4560a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(lhs); 4561a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4562a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isIntegerType()) { 4563a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the rhs floating point type. 4564a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4565a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 45661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isComplexIntegerType()) { 4567a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the complex floating point type. 4568a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(rhs); 4569a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4570a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // We have two real floating types, float/complex combos were handled above. 4571a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Convert the smaller operand to the bigger result. 4572a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 4573a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (result > 0) // convert the rhs 4574a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4575a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(result < 0 && "illegal float comparison"); 4576a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; // convert the lhs 4577a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4578a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexIntegerType() || rhs->isComplexIntegerType()) { 4579a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle GCC complex int extension. 4580a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *lhsComplexInt = lhs->getAsComplexIntegerType(); 4581a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *rhsComplexInt = rhs->getAsComplexIntegerType(); 4582a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4583a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsComplexInt && rhsComplexInt) { 45841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (getIntegerTypeOrder(lhsComplexInt->getElementType(), 4585a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsComplexInt->getElementType()) >= 0) 4586a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // convert the rhs 4587a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4588a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (lhsComplexInt && rhs->isIntegerType()) { 4589a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 4590a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4591a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (rhsComplexInt && lhs->isIntegerType()) { 4592a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 4593a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4594a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4595a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4596a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Finally, we have two differing integer types. 4597a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The rules for this case are in C99 6.3.1.8 4598a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int compare = getIntegerTypeOrder(lhs, rhs); 4599a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman bool lhsSigned = lhs->isSignedIntegerType(), 4600a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsSigned = rhs->isSignedIntegerType(); 4601a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman QualType destType; 4602a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsSigned == rhsSigned) { 4603a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Same signedness; use the higher-ranked type 4604a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = compare >= 0 ? lhs : rhs; 4605a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (compare != (lhsSigned ? 1 : -1)) { 4606a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The unsigned type has greater than or equal rank to the 4607a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // signed type, so use the unsigned type 4608a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? rhs : lhs; 4609a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (getIntWidth(lhs) != getIntWidth(rhs)) { 4610a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The two types are different widths; if we are here, that 4611a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // means the signed type is larger than the unsigned type, so 4612a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // use the signed type. 4613a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? lhs : rhs; 4614a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { 4615a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The signed type is higher-ranked than the unsigned type, 4616a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // but isn't actually any bigger (like unsigned int and long 4617a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // on most 32-bit systems). Use the unsigned type corresponding 4618a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // to the signed type. 4619a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = getCorrespondingUnsignedType(lhsSigned ? lhs : rhs); 4620a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4621a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return destType; 4622a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 4623