ASTContext.cpp revision 31f17ecbef57b5679c017c375db330546b7b5145
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ASTContext.cpp - Context to hold long-lived AST nodes ------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the ASTContext interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 15bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck#include "clang/AST/CharUnits.h" 1649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis#include "clang/AST/DeclCXX.h" 17980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 18aaba5e346dffdbad5d1c42765a89e4a7afb0da67Douglas Gregor#include "clang/AST/DeclTemplate.h" 19b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis#include "clang/AST/TypeLoc.h" 20e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 212cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor#include "clang/AST/ExternalASTSource.h" 2219cc4abea06a9b49e0e16a50d335c064cd723572Anders Carlsson#include "clang/AST/RecordLayout.h" 231b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner#include "clang/Basic/Builtins.h" 24a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner#include "clang/Basic/SourceManager.h" 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 26f5942a44880be26878592eb052b737579349411eBenjamin Kramer#include "llvm/ADT/SmallString.h" 2785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 286fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.h" 29f5942a44880be26878592eb052b737579349411eBenjamin Kramer#include "llvm/Support/raw_ostream.h" 3029445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson#include "RecordLayoutBuilder.h" 3129445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3861710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 39444be7366d0a1e172c0290a1ea54c1cb16b5947cDaniel Dunbar const TargetInfo &t, 40e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 411b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner Builtin::Context &builtins, 421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool FreeMem, unsigned size_reserve) : 431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 442bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian NSConstantStringTypeDecl(0), 45782fa308a765aeac2acb39c4e697c937ec21185bMike Stump ObjCFastEnumerationStateTypeDecl(0), FILEDecl(0), jmp_bufDecl(0), 46083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump sigjmp_bufDecl(0), BlockDescriptorType(0), BlockDescriptorExtendedType(0), 47c6fbbedb3e90ff2f04828c36fd839e01468679f5Douglas Gregor SourceMgr(SM), LangOpts(LOpts), FreeMemory(FreeMem), Target(t), 482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Idents(idents), Selectors(sels), 490c01d18094100db92d38daa923c95661512db203John McCall BuiltinInfo(builtins), ExternalSource(0), PrintingPolicy(LOpts), 500c01d18094100db92d38daa923c95661512db203John McCall LastSDM(0, 0) { 510f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCIdRedefinitionType = QualType(); 520f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCClassRedefinitionType = QualType(); 53369a3bd9979cf529eed529aa037de713c213e47dFariborz Jahanian ObjCSelRedefinitionType = QualType(); 541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (size_reserve > 0) Types.reserve(size_reserve); 55e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 5614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff InitBuiltinTypes(); 57e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 58e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 603478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek // Release the DenseMaps associated with DeclContext objects. 613478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek // FIXME: Is this the ideal solution? 623478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek ReleaseDeclContextMaps(); 637d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 647d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor // Release all of the memory associated with overridden C++ methods. 657d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor for (llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::iterator 667d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor OM = OverriddenMethods.begin(), OMEnd = OverriddenMethods.end(); 677d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor OM != OMEnd; ++OM) 687d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor OM->second.Destroy(); 693478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek 70bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek if (FreeMemory) { 71bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Deallocate all the types. 72bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek while (!Types.empty()) { 73bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek Types.back()->Destroy(*this); 74bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek Types.pop_back(); 75bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 76b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 77bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek for (llvm::FoldingSet<ExtQuals>::iterator 78bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek I = ExtQualNodes.begin(), E = ExtQualNodes.end(); I != E; ) { 79bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Increment in loop to prevent using deallocated memory. 800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Deallocate(&*I++); 81bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 83503524acc73f2f8280080ca0d200377406001b65Ted Kremenek for (llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 84503524acc73f2f8280080ca0d200377406001b65Ted Kremenek I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); I != E; ) { 85503524acc73f2f8280080ca0d200377406001b65Ted Kremenek // Increment in loop to prevent using deallocated memory. 86503524acc73f2f8280080ca0d200377406001b65Ted Kremenek if (ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second)) 87503524acc73f2f8280080ca0d200377406001b65Ted Kremenek R->Destroy(*this); 88503524acc73f2f8280080ca0d200377406001b65Ted Kremenek } 89b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 90503524acc73f2f8280080ca0d200377406001b65Ted Kremenek for (llvm::DenseMap<const ObjCContainerDecl*, 91503524acc73f2f8280080ca0d200377406001b65Ted Kremenek const ASTRecordLayout*>::iterator 92503524acc73f2f8280080ca0d200377406001b65Ted Kremenek I = ObjCLayouts.begin(), E = ObjCLayouts.end(); I != E; ) { 93503524acc73f2f8280080ca0d200377406001b65Ted Kremenek // Increment in loop to prevent using deallocated memory. 94503524acc73f2f8280080ca0d200377406001b65Ted Kremenek if (ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second)) 95503524acc73f2f8280080ca0d200377406001b65Ted Kremenek R->Destroy(*this); 96503524acc73f2f8280080ca0d200377406001b65Ted Kremenek } 97b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 98b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 99ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 1001ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 1011ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 1021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNSEnd = NestedNameSpecifiers.end(); 103bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek NNS != NNSEnd; ) { 104bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Increment in loop to prevent using deallocated memory. 1051ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 106bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 107ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 108ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 109ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 110ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 111b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 1152cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 1162cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 1172cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 1182cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 1227c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 123dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 1241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump#define TYPE(Name, Parent) 0, 125dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 126dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 127dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 128dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 129c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 132dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 135dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 136dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 137dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 138dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 139dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 140dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 141dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 142dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 143dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 1441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 145dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1462cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1472cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1482cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1492cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1502cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 154e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallvoid ASTContext::InitBuiltinType(CanQualType &R, BuiltinType::Kind K) { 1556b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BuiltinType *Ty = new (*this, TypeAlignment) BuiltinType(K); 156e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall R = CanQualType::CreateUnsafe(QualType(Ty, 0)); 1576b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Types.push_back(Ty); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 16915b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 19164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1922df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1932df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1942df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1952df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1963a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1973a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1983a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1993a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 20064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 201f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 202f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char16Ty, BuiltinType::Char16); 203f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 204f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16Ty = getFromTargetType(Target.getChar16Type()); 205f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 206f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 207f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char32Ty, BuiltinType::Char32); 208f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 209f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32Ty = getFromTargetType(Target.getChar32Type()); 210f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2118e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 212898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 213898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 214898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 215898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 216898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 217898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 218898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 219898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 2208e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Placeholder type for C++0x auto declarations whose real type has 222e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 223e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 2241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2298e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2307e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 2311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 232de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // "Builtin" typedefs set by Sema::ActOnTranslationUnitScope(). 233de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = QualType(); 234de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = QualType(); 23513dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian ObjCSelTypedefType = QualType(); 2361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23713dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian // Builtin types for 'id', 'Class', and 'SEL'. 238de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); 239de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); 24013dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian InitBuiltinType(ObjCBuiltinSelTy, BuiltinType::ObjCSel); 24114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 242a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 2431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 24533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2466e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2476e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2486e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 251251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorMemberSpecializationInfo * 252663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas GregorASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) { 2537caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Var->isStaticDataMember() && "Not a static data member"); 254663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor llvm::DenseMap<const VarDecl *, MemberSpecializationInfo *>::iterator Pos 2557caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor = InstantiatedFromStaticDataMember.find(Var); 2567caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Pos == InstantiatedFromStaticDataMember.end()) 2577caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return 0; 2581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2597caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return Pos->second; 2607caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2617caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 263251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl, 264251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor TemplateSpecializationKind TSK) { 2657caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Inst->isStaticDataMember() && "Not a static data member"); 2667caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Tmpl->isStaticDataMember() && "Not a static data member"); 2677caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(!InstantiatedFromStaticDataMember[Inst] && 2687caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor "Already noted what static data member was instantiated from"); 269251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor InstantiatedFromStaticDataMember[Inst] 270251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor = new (*this) MemberSpecializationInfo(Tmpl, TSK); 2717caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2727caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2737ba107a1863ddfa1664555854f0d7bdb3c491c92John McCallNamedDecl * 274ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::getInstantiatedFromUsingDecl(UsingDecl *UUD) { 2757ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall llvm::DenseMap<UsingDecl *, NamedDecl *>::const_iterator Pos 276ed97649e9574b9d854fa4d6109c9333ae0993554John McCall = InstantiatedFromUsingDecl.find(UUD); 277ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (Pos == InstantiatedFromUsingDecl.end()) 2780d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return 0; 2791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2800d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return Pos->second; 2810d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2820d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 2830d8df780aef1acda5962347a32591efc629b6748Anders Carlssonvoid 284ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::setInstantiatedFromUsingDecl(UsingDecl *Inst, NamedDecl *Pattern) { 285ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert((isa<UsingDecl>(Pattern) || 286ed97649e9574b9d854fa4d6109c9333ae0993554John McCall isa<UnresolvedUsingValueDecl>(Pattern) || 287ed97649e9574b9d854fa4d6109c9333ae0993554John McCall isa<UnresolvedUsingTypenameDecl>(Pattern)) && 288ed97649e9574b9d854fa4d6109c9333ae0993554John McCall "pattern decl is not a using decl"); 289ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert(!InstantiatedFromUsingDecl[Inst] && "pattern already exists"); 290ed97649e9574b9d854fa4d6109c9333ae0993554John McCall InstantiatedFromUsingDecl[Inst] = Pattern; 291ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 292ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 293ed97649e9574b9d854fa4d6109c9333ae0993554John McCallUsingShadowDecl * 294ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::getInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst) { 295ed97649e9574b9d854fa4d6109c9333ae0993554John McCall llvm::DenseMap<UsingShadowDecl*, UsingShadowDecl*>::const_iterator Pos 296ed97649e9574b9d854fa4d6109c9333ae0993554John McCall = InstantiatedFromUsingShadowDecl.find(Inst); 297ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (Pos == InstantiatedFromUsingShadowDecl.end()) 298ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return 0; 299ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 300ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return Pos->second; 301ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 302ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 303ed97649e9574b9d854fa4d6109c9333ae0993554John McCallvoid 304ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::setInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst, 305ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UsingShadowDecl *Pattern) { 306ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert(!InstantiatedFromUsingShadowDecl[Inst] && "pattern already exists"); 307ed97649e9574b9d854fa4d6109c9333ae0993554John McCall InstantiatedFromUsingShadowDecl[Inst] = Pattern; 3080d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 3090d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 310d8b285fee4471f393da8ee30f552ceacdc362afaAnders CarlssonFieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { 311d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos 312d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson = InstantiatedFromUnnamedFieldDecl.find(Field); 313d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson if (Pos == InstantiatedFromUnnamedFieldDecl.end()) 314d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return 0; 3151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 316d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return Pos->second; 317d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 318d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 319d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlssonvoid ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, 320d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson FieldDecl *Tmpl) { 321d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed"); 322d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Tmpl->getDeclName() && "Template field decl is not unnamed"); 323d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!InstantiatedFromUnnamedFieldDecl[Inst] && 324d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson "Already noted what unnamed field was instantiated from"); 3251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 326d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; 327d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 328d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 3297d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas GregorASTContext::overridden_cxx_method_iterator 3307d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas GregorASTContext::overridden_methods_begin(const CXXMethodDecl *Method) const { 3317d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos 3327d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor = OverriddenMethods.find(Method); 3337d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor if (Pos == OverriddenMethods.end()) 3347d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return 0; 3357d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3367d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return Pos->second.begin(); 3377d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor} 3387d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3397d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas GregorASTContext::overridden_cxx_method_iterator 3407d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas GregorASTContext::overridden_methods_end(const CXXMethodDecl *Method) const { 3417d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos 3427d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor = OverriddenMethods.find(Method); 3437d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor if (Pos == OverriddenMethods.end()) 3447d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return 0; 3457d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3467d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return Pos->second.end(); 3477d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor} 3487d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3497d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregorvoid ASTContext::addOverriddenMethod(const CXXMethodDecl *Method, 3507d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor const CXXMethodDecl *Overridden) { 3517d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor OverriddenMethods[Method].push_back(Overridden); 3527d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor} 3537d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregornamespace { 3551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump class BeforeInTranslationUnit 3562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor : std::binary_function<SourceRange, SourceRange, bool> { 3572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceManager *SourceMgr; 3581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor public: 3602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 3611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool operator()(SourceRange X, SourceRange Y) { 3632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 3642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 3652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor }; 3662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 3672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 368464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 369464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 370464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 371a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 372b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 373b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 374b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 375183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const BuiltinType *BT = T->getAs<BuiltinType>(); 376b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 377b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 378b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 379b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 380b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 381b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 382b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 383b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 384b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 3858b752f10c394b140f9ef89e049cbad1a7676fc25Ken Dyck/// getDeclAlign - Return a conservative estimate of the alignment of the 386af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 387af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 3885d484e8cf710207010720589d89602233de61d01Sebastian Redl/// If @p RefAsPointee, references are treated like their underlying type 3895d484e8cf710207010720589d89602233de61d01Sebastian Redl/// (for alignof), else they're treated like pointers (for CodeGen). 3908b752f10c394b140f9ef89e049cbad1a7676fc25Ken DyckCharUnits ASTContext::getDeclAlign(const Decl *D, bool RefAsPointee) { 391dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 392dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 39340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 394bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Align = std::max(Align, AA->getMaxAlignment()); 395dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 396af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 397af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 3986217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType* RT = T->getAs<ReferenceType>()) { 3995d484e8cf710207010720589d89602233de61d01Sebastian Redl if (RefAsPointee) 4005d484e8cf710207010720589d89602233de61d01Sebastian Redl T = RT->getPointeeType(); 4015d484e8cf710207010720589d89602233de61d01Sebastian Redl else 4025d484e8cf710207010720589d89602233de61d01Sebastian Redl T = getPointerType(RT->getPointeeType()); 4035d484e8cf710207010720589d89602233de61d01Sebastian Redl } 4045d484e8cf710207010720589d89602233de61d01Sebastian Redl if (!T->isIncompleteType() && !T->isFunctionType()) { 4054cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 406dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 407dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 408dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 409dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 410dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 41105f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis if (const FieldDecl *FD = dyn_cast<FieldDecl>(VD)) { 41205f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis // In the case of a field in a packed struct, we want the minimum 41305f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis // of the alignment of the field and the alignment of the struct. 41405f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis Align = std::min(Align, 41505f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis getPreferredTypeAlign(FD->getParent()->getTypeForDecl())); 41605f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis } 417af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 418dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 4198b752f10c394b140f9ef89e049cbad1a7676fc25Ken Dyck return CharUnits::fromQuantity(Align / Target.getCharWidth()); 420af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 421b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 422a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 423a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 4240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// 4250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// FIXME: Pointers into different addr spaces could have different sizes and 4260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// alignment requirements: getPointerInfo should take an AddrSpace, this 4270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// should take a QualType, &c. 428d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 4291d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 4305e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 4315e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 432a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 43372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 43472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 43518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 43672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 43772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 43818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 43972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 44072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 4415d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 4425d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 44318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 44418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 44518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 44618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 44718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 44872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 449fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 45018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 45118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 45218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 45318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 454fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 4551d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 4561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 45798be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 4589e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 459030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 460030d8846c7e520330007087e949f621989876e3aChris Lattner break; 4615c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 462213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 463030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 4649fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner const VectorType *VT = cast<VectorType>(T); 4659fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(VT->getElementType()); 4669fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = EltInfo.first*VT->getNumElements(); 4674bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 4686fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 4696fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 4708eefcd353c1d06a10104f69e5079ebab3183f9a3Dan Gohman if (Align & (Align-1)) { 4719fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Align = llvm::NextPowerOf2(Align); 4729fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = llvm::RoundUpToAlignment(Width, Align); 4739fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner } 474030d8846c7e520330007087e949f621989876e3aChris Lattner break; 475030d8846c7e520330007087e949f621989876e3aChris Lattner } 4765d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 4779e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 478a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 479692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 480d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 48118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 48218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 48318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 48418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 48518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 4866f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 4879e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 4889e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 4896f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 490692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 491692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 492692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 4936f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 4949e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 4959e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 4966f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 49764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 49864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 49964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 50064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 501f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char16: 502f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar16Width(); 503f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar16Align(); 504f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 505f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char32: 506f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar32Width(); 507f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar32Align(); 508f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 509692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 5106f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 5119e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 5129e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 5136f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 514692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 5156f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 5169e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 5179e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 5186f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 519692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 5206f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 5219e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 5229e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 5236f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 524692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 5256f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 5269e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 5279e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 5286f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 529ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 530ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 531ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 532ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 533ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 5346f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 5359e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 5369e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 5376f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5386f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 5395426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 5405426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 5416f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5426f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 5439e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 5449e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 5456f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5466e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 5476e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 5486e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 5491590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 550a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 551bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 552d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 5535426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 554f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 5556f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 556485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 557485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 558485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 559485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 560485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 561485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 5625d484e8cf710207010720589d89602233de61d01Sebastian Redl case Type::LValueReference: 5635d484e8cf710207010720589d89602233de61d01Sebastian Redl case Type::RValueReference: { 5645d484e8cf710207010720589d89602233de61d01Sebastian Redl // alignof and sizeof should never enter this code path here, so we go 5655d484e8cf710207010720589d89602233de61d01Sebastian Redl // the pointer route. 5665d484e8cf710207010720589d89602233de61d01Sebastian Redl unsigned AS = cast<ReferenceType>(T)->getPointeeType().getAddressSpace(); 5675d484e8cf710207010720589d89602233de61d01Sebastian Redl Width = Target.getPointerWidth(AS); 5685d484e8cf710207010720589d89602233de61d01Sebastian Redl Align = Target.getPointerAlign(AS); 5695d484e8cf710207010720589d89602233de61d01Sebastian Redl break; 5705d484e8cf710207010720589d89602233de61d01Sebastian Redl } 571f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 572f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 5735426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 574f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 575f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 576f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 577f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 578f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 5791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> PtrDiffInfo = 5801cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 5811cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 582f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 583f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 5841cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 5851cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 586f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 5875d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 5885d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 5895d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 5901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> EltInfo = 59198be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 5929e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 5935d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 5945d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 5955d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 59644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 5971d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 59844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 59944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 60044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 60144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 60244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 60372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 60472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 6051d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 6061d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 6071d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 6088389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 6098389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 6108389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 6118389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 6121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6131d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 6147176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 6157176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 6161d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 6177176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 6187176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 6197176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 620dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 621a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 6227532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 6239fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::SubstTemplateTypeParm: 62449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return getTypeInfo(cast<SubstTemplateTypeParmType>(T)-> 62549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall getReplacementType().getTypePtr()); 62649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 6279fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::Elaborated: 6289fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner return getTypeInfo(cast<ElaboratedType>(T)->getUnderlyingType() 6299fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner .getTypePtr()); 6307da2431c23ef1ee8acb114e39692246e1801afc2John McCall 63118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 63218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 63340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 634bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Align = std::max(Aligned->getMaxAlignment(), 635bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt getTypeAlign(Typedef->getUnderlyingType().getTypePtr())); 63618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 63718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 63818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 6397532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 6407176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 64118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 64218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 64318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 64418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 64518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 64618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 64718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 64818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 649395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 650395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 651395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 652395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 65318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 65418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 6551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 65618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 6571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(getCanonicalType(T) != T && 65818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 65918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 66018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 66118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 66218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 66318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 6641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 665464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 6669e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 667a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 668a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 669bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck/// getTypeSizeInChars - Return the size of the specified type, in characters. 670bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck/// This method does not work on incomplete types. 671bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen DyckCharUnits ASTContext::getTypeSizeInChars(QualType T) { 672199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return CharUnits::fromQuantity(getTypeSize(T) / getCharWidth()); 673bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck} 674bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen DyckCharUnits ASTContext::getTypeSizeInChars(const Type *T) { 675199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return CharUnits::fromQuantity(getTypeSize(T) / getCharWidth()); 676bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck} 677bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck 67816e20cce43385001f33f8e3f90ee345609c805d1Ken Dyck/// getTypeAlignInChars - Return the ABI-specified alignment of a type, in 67986fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck/// characters. This method does not work on incomplete types. 68086fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken DyckCharUnits ASTContext::getTypeAlignInChars(QualType T) { 68186fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck return CharUnits::fromQuantity(getTypeAlign(T) / getCharWidth()); 68286fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck} 68386fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken DyckCharUnits ASTContext::getTypeAlignInChars(const Type *T) { 68486fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck return CharUnits::fromQuantity(getTypeAlign(T) / getCharWidth()); 68586fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck} 68686fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck 68734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 68834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 68934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 69034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 69134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 69234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 6931eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 6941eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 695183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType* CT = T->getAs<ComplexType>()) 6961eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 6971eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 6981eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 6991eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 7001eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 70134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 70234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 70334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 704a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 705a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 706a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 707a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 708a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 709f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 710a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 711a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 712a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 713a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 714a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 715a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 716a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 717a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 718a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 719a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 720a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 721a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 7228e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 7238e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 7248e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 7258e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 72611062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 7278e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 7288e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 7298e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 7308e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 73111062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian 73211062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian CollectNonClassIvars(OI, Ivars); 7338e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 7348e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 73511062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian/// CollectNonClassIvars - 73611062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian/// This routine collects all other ivars which are not declared in the class. 7377d2aa11c5c3b85a9d727ff868de666ba3bff5b59Ted Kremenek/// This includes synthesized ivars (via @synthesize) and those in 7387d2aa11c5c3b85a9d727ff868de666ba3bff5b59Ted Kremenek// class's @implementation. 7399820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 74011062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanianvoid ASTContext::CollectNonClassIvars(const ObjCInterfaceDecl *OI, 7419820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 7420e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian // Find ivars declared in class extension. 7430e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian if (const ObjCCategoryDecl *CDecl = OI->getClassExtension()) { 7440e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian for (ObjCCategoryDecl::ivar_iterator I = CDecl->ivar_begin(), 7450e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian E = CDecl->ivar_end(); I != E; ++I) { 7460e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian Ivars.push_back(*I); 7470e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian } 7480e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian } 74911062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian 7507d2aa11c5c3b85a9d727ff868de666ba3bff5b59Ted Kremenek // Also add any ivar defined in this class's implementation. This 7517d2aa11c5c3b85a9d727ff868de666ba3bff5b59Ted Kremenek // includes synthesized ivars. 75211062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian if (ObjCImplementationDecl *ImplDecl = OI->getImplementation()) { 75311062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian for (ObjCImplementationDecl::ivar_iterator I = ImplDecl->ivar_begin(), 75411062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian E = ImplDecl->ivar_end(); I != E; ++I) 75511062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian Ivars.push_back(*I); 75611062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian } 7579820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 7589820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 759e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// CollectInheritedProtocols - Collect all protocols in current class and 760e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// those inherited by it. 761e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid ASTContext::CollectInheritedProtocols(const Decl *CDecl, 762432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl*, 8> &Protocols) { 763e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCInterfaceDecl *OI = dyn_cast<ObjCInterfaceDecl>(CDecl)) { 764e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 765e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 766e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 767432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 768e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 769b2f812165676230bce5d0215e49a4749c451ca9cFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) { 770b2f812165676230bce5d0215e49a4749c451ca9cFariborz Jahanian Protocols.insert(*P); 771e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 772e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 773b2f812165676230bce5d0215e49a4749c451ca9cFariborz Jahanian } 774e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 775e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian // Categories of this Interface. 776e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (const ObjCCategoryDecl *CDeclChain = OI->getCategoryList(); 777e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CDeclChain; CDeclChain = CDeclChain->getNextClassCategory()) 778e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(CDeclChain, Protocols); 779e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (ObjCInterfaceDecl *SD = OI->getSuperClass()) 780e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian while (SD) { 781e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(SD, Protocols); 782e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian SD = SD->getSuperClass(); 783e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 784e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 785e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 786e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCCategoryDecl *OC = dyn_cast<ObjCCategoryDecl>(CDecl)) { 787e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OC->protocol_begin(), 788e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OC->protocol_end(); P != PE; ++P) { 789e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 790432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 791e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 792e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 793e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 794e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 795e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 796e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 797e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCProtocolDecl *OP = dyn_cast<ObjCProtocolDecl>(CDecl)) { 798e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = OP->protocol_begin(), 799e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OP->protocol_end(); P != PE; ++P) { 800e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 801432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 802e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 803e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 804e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 805e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 806e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 807e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 808e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 809e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 810184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian/// CollectIvarsToConstructOrDestruct - Collect those ivars which require 811184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian/// construction (construct=true) or destruction (construct=false) 812184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian/// 813184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanianvoid ASTContext::CollectIvarsToConstructOrDestruct(const ObjCInterfaceDecl *OI, 814184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 815184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian bool construct) { 816184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian if (!getLangOptions().CPlusPlus) 817184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian return; 818184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 819184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 820184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian ObjCIvarDecl *Iv = (*I); 821184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian if (const RecordType *RT = Iv->getType()->getAs<RecordType>()) { 822184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(RT->getDecl())) 823184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian if (construct && !RD->hasTrivialConstructor() || 824184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian !construct && !RD->hasTrivialDestructor()) 825184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian Ivars.push_back(*I); 826184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian } 827184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian } 828184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian 829184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian // Find ivars to construct/destruct in class extension. 830184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian if (const ObjCCategoryDecl *CDecl = OI->getClassExtension()) { 831184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian for (ObjCCategoryDecl::ivar_iterator I = CDecl->ivar_begin(), 832184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian E = CDecl->ivar_end(); I != E; ++I) { 833184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian ObjCIvarDecl *Iv = (*I); 834184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian if (const RecordType *RT = Iv->getType()->getAs<RecordType>()) { 835184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(RT->getDecl())) 836184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian if (construct && !RD->hasTrivialConstructor() || 837184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian !construct && !RD->hasTrivialDestructor()) 838184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian Ivars.push_back(*I); 839184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian } 840184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian } 841184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian } 842184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian 843184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian // Also add any ivar defined in this class's implementation. This 844184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian // includes synthesized ivars. 845184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian if (ObjCImplementationDecl *ImplDecl = OI->getImplementation()) { 846184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian for (ObjCImplementationDecl::ivar_iterator I = ImplDecl->ivar_begin(), 847184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian E = ImplDecl->ivar_end(); I != E; ++I) { 848184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian ObjCIvarDecl *Iv = (*I); 849184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian if (const RecordType *RT = Iv->getType()->getAs<RecordType>()) { 850184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(RT->getDecl())) 851184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian if (construct && !RD->hasTrivialConstructor() || 852184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian !construct && !RD->hasTrivialDestructor()) 853184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian Ivars.push_back(*I); 854184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian } 855184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian } 856184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian } 857184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian} 858184d7900e0202ac468710b731e42075129bb6000Fariborz Jahanian 8593bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanianunsigned ASTContext::CountNonClassIvars(const ObjCInterfaceDecl *OI) { 8603bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian unsigned count = 0; 8613bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian // Count ivars declared in class extension. 8623bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian if (const ObjCCategoryDecl *CDecl = OI->getClassExtension()) { 8633bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian for (ObjCCategoryDecl::ivar_iterator I = CDecl->ivar_begin(), 8643bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian E = CDecl->ivar_end(); I != E; ++I) { 8658e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8663bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian } 8678e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8683bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian 8693bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian // Count ivar defined in this class's implementation. This 8703bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian // includes synthesized ivars. 8713bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian if (ObjCImplementationDecl *ImplDecl = OI->getImplementation()) 8723bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian for (ObjCImplementationDecl::ivar_iterator I = ImplDecl->ivar_begin(), 8733bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian E = ImplDecl->ivar_end(); I != E; ++I) 8743bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian ++count; 8758e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 8768e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8788a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCInterfaceDecl,or NULL if none exists. 8798a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { 8808a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 8818a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 8828a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 8838a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCImplementationDecl>(I->second); 8848a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 8858a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 8868a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCCategoryDecl, or NULL if none exists. 8878a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { 8888a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 8898a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 8908a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 8918a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCCategoryImplDecl>(I->second); 8928a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 8938a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 8948a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 8958a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCInterfaceDecl. 8968a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, 8978a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImplementationDecl *ImplD) { 8988a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(IFaceD && ImplD && "Passed null params"); 8998a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[IFaceD] = ImplD; 9008a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9018a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCCategoryDecl. 9028a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, 9038a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCCategoryImplDecl *ImplD) { 9048a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(CatD && ImplD && "Passed null params"); 9058a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[CatD] = ImplD; 9068a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9078a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 908a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Allocate an uninitialized TypeSourceInfo. 909b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 910a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// The caller should initialize the memory held by TypeSourceInfo using 911b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// the TypeLoc wrappers. 912b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 913b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \param T the type that will be the basis for type source info. This type 914b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// should refer to how the declarator was written in source code, not to 915b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// what type semantic analysis resolved the declarator to. 916a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo *ASTContext::CreateTypeSourceInfo(QualType T, 917109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall unsigned DataSize) { 918109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall if (!DataSize) 919109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall DataSize = TypeLoc::getFullDataSizeForType(T); 920109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall else 921109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall assert(DataSize == TypeLoc::getFullDataSizeForType(T) && 922a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall "incorrect data size provided to CreateTypeSourceInfo!"); 923109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall 924a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 925a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall (TypeSourceInfo*)BumpAlloc.Allocate(sizeof(TypeSourceInfo) + DataSize, 8); 926a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (TInfo) TypeSourceInfo(T); 927a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 928b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis} 929b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis 930a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo *ASTContext::getTrivialTypeSourceInfo(QualType T, 931a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall SourceLocation L) { 932a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = CreateTypeSourceInfo(T); 933a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall DI->getTypeLoc().initialize(L); 934a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall return DI; 935a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall} 936a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall 937b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 938b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 939b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 940b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 941b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 94244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 943b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 944b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 945532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 946532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 94744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 9481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCContainerDecl *Key = 949d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 950d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 951d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 95244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 953453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 954453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 9553bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian unsigned SynthCount = CountNonClassIvars(D); 956d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 957453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 958453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 959453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 9608e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 961453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 962453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 963453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 9641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 96529445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D, Impl); 96629445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ObjCLayouts[Key] = NewEntry; 9671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 96844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 96944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 97044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 971b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 972b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 973b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 974b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 975b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 976b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 977b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 978b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 979b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 980b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 98188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 982464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 983464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 98498be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 985952b017601f9c82b51119c3a1600f1312a833db9Douglas Gregor D = D->getDefinition(); 9864b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 9874bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 988464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 989ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // Note that we can't save a reference to the entry because this function 990ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // is recursive. 991ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman const ASTRecordLayout *Entry = ASTRecordLayouts[D]; 992464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 9934bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 9941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 99529445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D); 996ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman ASTRecordLayouts[D] = NewEntry; 9971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9988d8ab749f6f8bb63ea2cd2b589c0f050b67fc5ccDaniel Dunbar if (getLangOptions().DumpRecordLayouts) { 9998d8ab749f6f8bb63ea2cd2b589c0f050b67fc5ccDaniel Dunbar llvm::errs() << "\n*** Dumping AST Record Layout\n"; 10008d8ab749f6f8bb63ea2cd2b589c0f050b67fc5ccDaniel Dunbar DumpRecordLayout(D, llvm::errs()); 10018d8ab749f6f8bb63ea2cd2b589c0f050b67fc5ccDaniel Dunbar } 10028d8ab749f6f8bb63ea2cd2b589c0f050b67fc5ccDaniel Dunbar 10035d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 1004464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 1005464175bba1318bef7905122e9fda20cff926df78Chris Lattner 1006f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlssonconst CXXMethodDecl *ASTContext::getKeyFunction(const CXXRecordDecl *RD) { 1007952b017601f9c82b51119c3a1600f1312a833db9Douglas Gregor RD = cast<CXXRecordDecl>(RD->getDefinition()); 1008f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson assert(RD && "Cannot get key function for forward declarations!"); 1009f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1010f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson const CXXMethodDecl *&Entry = KeyFunctions[RD]; 1011f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson if (!Entry) 1012f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson Entry = ASTRecordLayoutBuilder::ComputeKeyFunction(RD); 1013f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson else 1014f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson assert(Entry == ASTRecordLayoutBuilder::ComputeKeyFunction(RD) && 1015f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson "Key function changed!"); 1016f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1017f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson return Entry; 1018f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson} 1019f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1020a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1021a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 1022a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1023a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 10240953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getExtQualType(const Type *TypeNode, Qualifiers Quals) { 10250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned Fast = Quals.getFastQualifiers(); 10260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeFastQualifiers(); 10270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Check if we've already instantiated this type. 10290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::FoldingSetNodeID ID; 10300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQuals::Profile(ID, TypeNode, Quals); 10310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void *InsertPos = 0; 10320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ExtQuals *EQ = ExtQualNodes.FindNodeOrInsertPos(ID, InsertPos)) { 10330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(EQ->getQualifiers() == Quals); 10340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(EQ, Fast); 10350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 10360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 10370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10386b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtQuals *New = new (*this, TypeAlignment) ExtQuals(*this, TypeNode, Quals); 10390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQualNodes.InsertNode(New, InsertPos); 10400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(New, Fast); 10410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 10420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 10430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10440953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getVolatileType(QualType T) { 10450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanT = getCanonicalType(T); 10460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (CanT.isVolatileQualified()) return T; 10470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 10490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 10500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addVolatile(); 10510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 10530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 10540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1055f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 1056f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 1057f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 1058f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 1059b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 10600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 10610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 10620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 10630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 10641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an address space specified, it cannot get 10660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 10670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasAddressSpace() && 10680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot be in multiple addr spaces!"); 10690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addAddressSpace(AddressSpace); 10701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1072ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 1073ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1074b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 10750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr) { 1076d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 1077b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 1078d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 10791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10804027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 10816217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 108258f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff if (Pointee->isAnyPointerType()) { 10834027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 10844027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 10854027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 10864027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 10871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10880953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 10890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 10900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 10910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 10921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10930953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an ObjCGC specified, it cannot get 10940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 10950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasObjCGCAttr() && 10960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot have multiple ObjCGCs!"); 10970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addObjCGCAttr(GCAttr); 10981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1100d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1101a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 1102264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindolastatic QualType getExtFunctionType(ASTContext& Context, QualType T, 1103264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const FunctionType::ExtInfo &Info) { 11040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType ResultType; 110543c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (const PointerType *Pointer = T->getAs<PointerType>()) { 110643c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor QualType Pointee = Pointer->getPointeeType(); 1107264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola ResultType = getExtFunctionType(Context, Pointee, Info); 110843c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (ResultType == Pointee) 110943c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1110ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1111ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getPointerType(ResultType); 111243c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else if (const BlockPointerType *BlockPointer 111343c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor = T->getAs<BlockPointerType>()) { 111443c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor QualType Pointee = BlockPointer->getPointeeType(); 1115264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola ResultType = getExtFunctionType(Context, Pointee, Info); 111643c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (ResultType == Pointee) 111743c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1118ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1119ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getBlockPointerType(ResultType); 1120ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor } else if (const FunctionType *F = T->getAs<FunctionType>()) { 1121264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola if (F->getExtInfo() == Info) 112243c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1123ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 112443c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (const FunctionNoProtoType *FNPT = dyn_cast<FunctionNoProtoType>(F)) { 1125ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getFunctionNoProtoType(FNPT->getResultType(), 1126264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info); 11270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else { 112843c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor const FunctionProtoType *FPT = cast<FunctionProtoType>(F); 11290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType 1130ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor = Context.getFunctionType(FPT->getResultType(), FPT->arg_type_begin(), 1131ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getNumArgs(), FPT->isVariadic(), 1132ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getTypeQuals(), 1133ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->hasExceptionSpec(), 1134ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->hasAnyExceptionSpec(), 1135ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getNumExceptions(), 1136ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->exception_begin(), 1137264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info); 11380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 113943c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else 114043c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1141ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1142ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return Context.getQualifiedType(ResultType, T.getLocalQualifiers()); 1143ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 1144ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1145ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getNoReturnType(QualType T, bool AddNoReturn) { 1146425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo Info = getFunctionExtInfo(T); 1147264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return getExtFunctionType(*this, T, 1148264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info.withNoReturn(AddNoReturn)); 1149ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 1150ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1151ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getCallConvType(QualType T, CallingConv CallConv) { 1152425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo Info = getFunctionExtInfo(T); 1153264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return getExtFunctionType(*this, T, 1154264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info.withCallingConv(CallConv)); 11552455636163fdd18581d7fdae816433f886d88213Mike Stump} 11562455636163fdd18581d7fdae816433f886d88213Mike Stump 1157425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael EspindolaQualType ASTContext::getRegParmType(QualType T, unsigned RegParm) { 1158425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo Info = getFunctionExtInfo(T); 1159425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return getExtFunctionType(*this, T, 1160425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola Info.withRegParm(RegParm)); 1161425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola} 1162425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 11645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 11655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 11665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 11701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 11741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 11765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1178467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1179f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 11801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1183f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11856b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ComplexType *New = new (*this, TypeAlignment) ComplexType(T, Canonical); 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 11885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 11981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 12015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 12021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 12045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1206467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1207f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 12081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1211f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12136b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall PointerType *New = new (*this, TypeAlignment) PointerType(T, Canonical); 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 12165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getBlockPointerType - Return the uniqued reference to the type for 12205618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 12215618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1222296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1223296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 12245618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 12255618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 12265618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 12271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12285618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 12295618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 12305618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 12315618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 12321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the block pointee type isn't canonical, this won't be a canonical 12345618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 12355618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 1236467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 12375618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 12381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12395618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 12405618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 12415618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1242f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12435618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 12446b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BlockPointerType *New 12456b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) BlockPointerType(T, Canonical); 12465618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 12475618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 12485618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 12495618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 12505618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 12517c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 12527c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 125354e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType ASTContext::getLValueReferenceType(QualType T, bool SpelledAsLValue) { 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 125754e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, SpelledAsLValue); 12585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12607c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 12617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 12637c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 126454e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 126554e14c4db764c0636160d26c5bbf491637c83a76John McCall 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 12675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 12685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 126954e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!SpelledAsLValue || InnerRef || !T.isCanonical()) { 127054e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 127154e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getLValueReferenceType(getCanonicalType(PointeeType)); 12727c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12737c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 12747c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 12757c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 12767c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12777c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 12787c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12796b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall LValueReferenceType *New 128054e14c4db764c0636160d26c5bbf491637c83a76John McCall = new (*this, TypeAlignment) LValueReferenceType(T, Canonical, 128154e14c4db764c0636160d26c5bbf491637c83a76John McCall SpelledAsLValue); 12827c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 12837c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 128454e14c4db764c0636160d26c5bbf491637c83a76John McCall 12857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 12867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 12877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12887c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 12897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 12907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 12917c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 12927c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 12937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 129454e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, false); 12957c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12967c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 12977c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 12987c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12997c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 13007c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 130154e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 130254e14c4db764c0636160d26c5bbf491637c83a76John McCall 13037c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 13047c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 13057c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 130654e14c4db764c0636160d26c5bbf491637c83a76John McCall if (InnerRef || !T.isCanonical()) { 130754e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 130854e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getRValueReferenceType(getCanonicalType(PointeeType)); 13097c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13117c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 13127c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1313f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13166b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall RValueReferenceType *New 13176b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); 13185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13197c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 13205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1323f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1324f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 13251eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) { 1326f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1327f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1328f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1329f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1330f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1331f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1332f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1333f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1334f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1335f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1336f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1337f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1338f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 133987c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor if (!T.isCanonical() || !Cls->isCanonicalUnqualified()) { 1340f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1341f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1342f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1343f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1344f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1345f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1346f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 13476b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall MemberPointerType *New 13486b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); 1349f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1350f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1351f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1352f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1353f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 13541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getConstantArrayType - Return the unique reference to the type for an 1355fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 13561eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getConstantArrayType(QualType EltTy, 135738aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1358c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1359c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1360923d56d436f750bc1f29db50e641078725558a1bSebastian Redl assert((EltTy->isDependentType() || 1361923d56d436f750bc1f29db50e641078725558a1bSebastian Redl EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && 1362587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1363587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 136438aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 136538aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 136638aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 136738aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 13681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 13700be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 13711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ConstantArrayType *ATP = 13747192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 13755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 13761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 13785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 13795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1380467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 13811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1382c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 13835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ConstantArrayType *NewIP = 13857192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1386f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13896b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType *New = new(*this,TypeAlignment) 13906b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 13917192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 13925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1396bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1397bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 13987e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 13997e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1400c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 14017e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14027e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1403c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1404c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1405c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 14066b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType *New = new(*this, TypeAlignment) 14076b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType(EltTy, QualType(), NumElts, ASM, EltTypeQuals, Brackets); 1408c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1409c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1410c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1411c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1412c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1413c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1414898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1415898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 141604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor/// type. 14177e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 14187e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1419898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 14207e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14217e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1422cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor assert((!NumElts || NumElts->isTypeDependent() || 1423cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor NumElts->isValueDependent()) && 1424898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1425898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 142604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor void *InsertPos = 0; 1427cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayType *Canon = 0; 1428789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor llvm::FoldingSetNodeID ID; 1429cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1430cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor if (NumElts) { 1431cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // Dependently-sized array types that do not have a specified 1432cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // number of elements will have their sizes deduced from an 1433cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // initializer. 1434cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayType::Profile(ID, *this, getCanonicalType(EltTy), ASM, 1435cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor EltTypeQuals, NumElts); 1436cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1437cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor Canon = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1438cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor } 1439cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 144004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *New; 144104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (Canon) { 144204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // We already have a canonical version of this array type; use it as 144304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // the canonical type for a newly-built type. 14446b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14456b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(Canon, 0), 14466b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 144704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 144804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType CanonEltTy = getCanonicalType(EltTy); 144904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (CanonEltTy == EltTy) { 14506b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14516b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(), 14526b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 1453cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1454789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (NumElts) { 1455789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentSizedArrayType *CanonCheck 1456789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1457789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CanonCheck && "Dependent-sized canonical array type broken"); 1458789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CanonCheck; 1459cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayTypes.InsertNode(New, InsertPos); 1460789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 146104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 146204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType Canon = getDependentSizedArrayType(CanonEltTy, NumElts, 146304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor ASM, EltTypeQuals, 146404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor SourceRange()); 14656b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14666b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, Canon, 14676b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 146804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 146904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 14701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1471898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1472898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1473898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1474898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1475c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1476c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1477c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1478c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 14790be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1480c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1481c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 14821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (IncompleteArrayType *ATP = 1483c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1484c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1485c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1486c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1487c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1488c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1489c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1490467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 1491f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 14922bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1493c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1494c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1495c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1496c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1497f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14982bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1499c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 15006b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType *New = new (*this, TypeAlignment) 15016b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType(EltTy, Canonical, ASM, EltTypeQuals); 1502c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1503c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1504c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1505c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1506fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1507fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 150873322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 150973322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 151082287d19ded35248c4ce6a425ce74116a13ce44eJohn ThompsonQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts, 151182287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson bool IsAltiVec, bool IsPixel) { 15125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 15131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1514f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 151573322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 15161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 15185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 151982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VectorType::Profile(ID, vecType, NumElts, Type::Vector, 152082287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson IsAltiVec, IsPixel); 15215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 15225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 15235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 15245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 15265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 15275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 152882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson if (!vecType.isCanonical() || IsAltiVec || IsPixel) { 152982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Canonical = getVectorType(getCanonicalType(vecType), 153082287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson NumElts, false, false); 15311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 15335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1534f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15366b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType *New = new (*this, TypeAlignment) 153782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VectorType(vecType, NumElts, Canonical, IsAltiVec, IsPixel); 15385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 15395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 15405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 15415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1543213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 154473322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1545213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 154673322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 15471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1548f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1549213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 15501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 155173322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 155273322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 155382287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VectorType::Profile(ID, vecType, NumElts, Type::ExtVector, false, false); 155473322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 155573322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 155673322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 155773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 155873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 155973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 156073322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 1561467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!vecType.isCanonical()) { 1562213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 15631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 156473322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 156573322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1566f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 156773322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 15686b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType *New = new (*this, TypeAlignment) 15696b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType(vecType, NumElts, Canonical); 157073322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 157173322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 157273322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 157373322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 157473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 15751eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 15769cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 15779cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 15782ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor llvm::FoldingSetNodeID ID; 15791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), 15802ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr); 15811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15822ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor void *InsertPos = 0; 15832ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *Canon 15842ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 15852ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *New; 15862ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (Canon) { 15872ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // We already have a canonical version of this array type; use it as 15882ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // the canonical type for a newly-built type. 15896b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15906b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), 15916b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall SizeExpr, AttrLoc); 15922ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 15932ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType CanonVecTy = getCanonicalType(vecType); 15942ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (CanonVecTy == vecType) { 15956b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15966b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, 15976b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall AttrLoc); 1598789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 1599789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentSizedExtVectorType *CanonCheck 1600789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1601789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CanonCheck && "Dependent-sized ext_vector canonical type broken"); 1602789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CanonCheck; 16032ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorTypes.InsertNode(New, InsertPos); 16042ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 16052ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType Canon = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, 16062ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SourceLocation()); 16076b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16086b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, Canon, SizeExpr, AttrLoc); 16092ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 16102ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 16111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16129cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 16139cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 16149cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 16159cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 161672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 16175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1618264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael EspindolaQualType ASTContext::getFunctionNoProtoType(QualType ResultTy, 1619264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const FunctionType::ExtInfo &Info) { 1620264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const CallingConv CallConv = Info.getCC(); 16215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 16225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 16235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 1624264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionNoProtoType::Profile(ID, ResultTy, Info); 16251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionNoProtoType *FT = 162872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 16295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 16301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1632ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor if (!ResultTy.isCanonical() || 163304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall getCanonicalCallConv(CallConv) != CallConv) { 1634264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Canonical = 1635264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola getFunctionNoProtoType(getCanonicalType(ResultTy), 1636264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info.withCallingConv(getCanonicalCallConv(CallConv))); 16371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 163972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 164072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1641f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16446b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType *New = new (*this, TypeAlignment) 1645264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionNoProtoType(ResultTy, Canonical, Info); 16465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 164772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 16485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 16495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 16525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 165361710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1654971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1655465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1656465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 1657264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const QualType *ExArray, 1658264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const FunctionType::ExtInfo &Info) { 1659264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const CallingConv CallConv= Info.getCC(); 16605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 16615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 166372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1664465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1665264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola NumExs, ExArray, Info); 16665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionProtoType *FTP = 166972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 16705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1671465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1672465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 167354e14c4db764c0636160d26c5bbf491637c83a76John McCall bool isCanonical = !hasExceptionSpec && ResultTy.isCanonical(); 16745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 167554e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!ArgArray[i].isCanonicalAsParam()) 16765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 16775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1679465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 16805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 168104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!isCanonical || getCanonicalCallConv(CallConv) != CallConv) { 16825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 16835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 16845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 168554e14c4db764c0636160d26c5bbf491637c83a76John McCall CanonicalArgs.push_back(getCanonicalParamType(ArgArray[i])); 1686465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1687f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1688beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 168947259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor isVariadic, TypeQuals, false, 1690264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola false, 0, 0, 1691264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info.withCallingConv(getCanonicalCallConv(CallConv))); 1692465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 16935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 169472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 169572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1696f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1698465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 169972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1700465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1701465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 17021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FunctionProtoType *FTP = 1703465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1704465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 17056b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumExs*sizeof(QualType), TypeAlignment); 170672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1707465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1708264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola ExArray, NumExs, Canonical, Info); 17095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 171072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 17115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 17125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17143cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall#ifndef NDEBUG 17153cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallstatic bool NeedsInjectedClassNameType(const RecordDecl *D) { 17163cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (!isa<CXXRecordDecl>(D)) return false; 17173cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall const CXXRecordDecl *RD = cast<CXXRecordDecl>(D); 17183cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (isa<ClassTemplatePartialSpecializationDecl>(RD)) 17193cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return true; 17203cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (RD->getDescribedClassTemplate() && 17213cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall !isa<ClassTemplateSpecializationDecl>(RD)) 17223cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return true; 17233cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return false; 17243cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall} 17253cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall#endif 17263cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 17273cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall/// getInjectedClassNameType - Return the unique reference to the 17283cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall/// injected class name type for the specified templated declaration. 17293cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallQualType ASTContext::getInjectedClassNameType(CXXRecordDecl *Decl, 17303cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall QualType TST) { 17313cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(NeedsInjectedClassNameType(Decl)); 17323cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (Decl->TypeForDecl) { 17333cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(isa<InjectedClassNameType>(Decl->TypeForDecl)); 17343cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } else if (CXXRecordDecl *PrevDecl 17353cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall = cast_or_null<CXXRecordDecl>(Decl->getPreviousDeclaration())) { 17363cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(PrevDecl->TypeForDecl && "previous declaration has no type"); 17373cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall Decl->TypeForDecl = PrevDecl->TypeForDecl; 17383cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(isa<InjectedClassNameType>(Decl->TypeForDecl)); 17393cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } else { 174031f17ecbef57b5679c017c375db330546b7b5145John McCall Decl->TypeForDecl = 174131f17ecbef57b5679c017c375db330546b7b5145John McCall new (*this, TypeAlignment) InjectedClassNameType(Decl, TST); 17423cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall Types.push_back(Decl->TypeForDecl); 17433cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } 17443cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return QualType(Decl->TypeForDecl, 0); 17453cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall} 17463cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 17472ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 17482ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 1749becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCallQualType ASTContext::getTypeDeclTypeSlow(const TypeDecl *Decl) { 17501e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 1751becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!Decl->TypeForDecl && "TypeForDecl present in slow case"); 17521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 175319c8576b7328f4dc2d07682f5da552875c1912efJohn McCall if (const TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 17542ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1755becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall 1756becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall if (const ObjCInterfaceDecl *ObjCInterface 17579fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump = dyn_cast<ObjCInterfaceDecl>(Decl)) 17582ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 175949aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1760becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!isa<TemplateTypeParmDecl>(Decl) && 1761becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall "Template type parameter types are always available."); 1762becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall 176319c8576b7328f4dc2d07682f5da552875c1912efJohn McCall if (const RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1764becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!Record->getPreviousDeclaration() && 1765becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall "struct/union has previous declaration"); 1766becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!NeedsInjectedClassNameType(Record)); 1767becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) RecordType(Record); 176819c8576b7328f4dc2d07682f5da552875c1912efJohn McCall } else if (const EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1769becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!Enum->getPreviousDeclaration() && 1770becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall "enum has previous declaration"); 1771becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) EnumType(Enum); 177219c8576b7328f4dc2d07682f5da552875c1912efJohn McCall } else if (const UnresolvedUsingTypenameDecl *Using = 1773ed97649e9574b9d854fa4d6109c9333ae0993554John McCall dyn_cast<UnresolvedUsingTypenameDecl>(Decl)) { 1774ed97649e9574b9d854fa4d6109c9333ae0993554John McCall Decl->TypeForDecl = new (*this, TypeAlignment) UnresolvedUsingType(Using); 17759fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else 1776becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall llvm_unreachable("TypeDecl without a type?"); 177749aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1778becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall Types.push_back(Decl->TypeForDecl); 177949aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 17802ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 17812ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 17825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 17835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 178419c8576b7328f4dc2d07682f5da552875c1912efJohn McCallQualType ASTContext::getTypedefType(const TypedefDecl *Decl) { 17855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 17861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1787f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 17886b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new(*this, TypeAlignment) 17896b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypedefType(Type::Typedef, Decl, Canonical); 17905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 17915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 17925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 179449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// \brief Retrieve a substitution-result type. 179549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallQualType 179649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallASTContext::getSubstTemplateTypeParmType(const TemplateTypeParmType *Parm, 179749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType Replacement) { 1798467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(Replacement.isCanonical() 179949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall && "replacement types must always be canonical"); 180049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 180149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall llvm::FoldingSetNodeID ID; 180249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType::Profile(ID, Parm, Replacement); 180349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall void *InsertPos = 0; 180449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType *SubstParm 180549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall = SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 180649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 180749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall if (!SubstParm) { 180849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstParm = new (*this, TypeAlignment) 180949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType(Parm, Replacement); 181049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall Types.push_back(SubstParm); 181149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos); 181249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 181349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 181449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return QualType(SubstParm, 0); 181549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall} 181649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 1817fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 18181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parameter or parameter pack with the given depth, index, and (optionally) 181976e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 18201eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 182176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1822fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1823fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 182476e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1825fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 18261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateTypeParmType *TypeParm 1827fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1828fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1829fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1830fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 18311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 183276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 183376e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 18346b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 18356b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack, Name, Canon); 1836789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 1837789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor TemplateTypeParmType *TypeCheck 1838789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1839789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!TypeCheck && "Template type parameter canonical type broken"); 1840789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)TypeCheck; 184176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 18426b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 18436b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack); 1844fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1845fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1846fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1847fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1848fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1849fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1850fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 18513cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallTypeSourceInfo * 18523cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallASTContext::getTemplateSpecializationTypeInfo(TemplateName Name, 18533cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall SourceLocation NameLoc, 18543cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall const TemplateArgumentListInfo &Args, 18553cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall QualType CanonType) { 18563cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall QualType TST = getTemplateSpecializationType(Name, Args, CanonType); 18573cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 18583cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TypeSourceInfo *DI = CreateTypeSourceInfo(TST); 18593cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TemplateSpecializationTypeLoc TL 18603cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall = cast<TemplateSpecializationTypeLoc>(DI->getTypeLoc()); 18613cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setTemplateNameLoc(NameLoc); 18623cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setLAngleLoc(Args.getLAngleLoc()); 18633cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setRAngleLoc(Args.getRAngleLoc()); 18643cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) 18653cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setArgLocInfo(i, Args[i].getLocInfo()); 18663cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return DI; 18673cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall} 18683cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 18691eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 18707532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 1871d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo &Args, 187231f17ecbef57b5679c017c375db330546b7b5145John McCall QualType Canon, 187331f17ecbef57b5679c017c375db330546b7b5145John McCall bool IsCurrentInstantiation) { 1874d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall unsigned NumArgs = Args.size(); 1875d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 1876833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall llvm::SmallVector<TemplateArgument, 4> ArgVec; 1877833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.reserve(NumArgs); 1878833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall for (unsigned i = 0; i != NumArgs; ++i) 1879833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.push_back(Args[i].getArgument()); 1880833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 188131f17ecbef57b5679c017c375db330546b7b5145John McCall return getTemplateSpecializationType(Template, ArgVec.data(), NumArgs, 188231f17ecbef57b5679c017c375db330546b7b5145John McCall Canon, IsCurrentInstantiation); 1883833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall} 1884833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1885833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallQualType 1886833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallASTContext::getTemplateSpecializationType(TemplateName Template, 18877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 18887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 188931f17ecbef57b5679c017c375db330546b7b5145John McCall QualType Canon, 189031f17ecbef57b5679c017c375db330546b7b5145John McCall bool IsCurrentInstantiation) { 1891b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (!Canon.isNull()) 1892b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = getCanonicalType(Canon); 1893b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor else { 189431f17ecbef57b5679c017c375db330546b7b5145John McCall assert(!IsCurrentInstantiation && 189531f17ecbef57b5679c017c375db330546b7b5145John McCall "current-instantiation specializations should always " 189631f17ecbef57b5679c017c375db330546b7b5145John McCall "have a canonical type"); 189731f17ecbef57b5679c017c375db330546b7b5145John McCall 1898b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor // Build the canonical template specialization type. 18991275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateName CanonTemplate = getCanonicalTemplateName(Template); 19001275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::SmallVector<TemplateArgument, 4> CanonArgs; 19011275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.reserve(NumArgs); 19021275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor for (unsigned I = 0; I != NumArgs; ++I) 19031275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.push_back(getCanonicalTemplateArgument(Args[I])); 19041275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 19051275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Determine whether this canonical template specialization type already 19061275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // exists. 19071275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::FoldingSetNodeID ID; 190831f17ecbef57b5679c017c375db330546b7b5145John McCall TemplateSpecializationType::Profile(ID, CanonTemplate, false, 1909828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor CanonArgs.data(), NumArgs, *this); 19101275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 19111275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor void *InsertPos = 0; 19121275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateSpecializationType *Spec 19131275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 19141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19151275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor if (!Spec) { 19161275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate a new canonical template specialization type. 19171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 19181275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor sizeof(TemplateArgument) * NumArgs), 19196b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 192031f17ecbef57b5679c017c375db330546b7b5145John McCall Spec = new (Mem) TemplateSpecializationType(*this, CanonTemplate, false, 19211275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.data(), NumArgs, 1922b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon); 19231275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Types.push_back(Spec); 19241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 19251275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 19261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1927b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (Canon.isNull()) 1928b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = QualType(Spec, 0); 19291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(Canon->isDependentType() && 19301275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor "Non-dependent template-id type must have a canonical type"); 1931b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor } 1932fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 19331275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate the (non-canonical) template specialization type, but don't 19341275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // try to unique it: these types typically have location information that 19351275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // we don't unique and don't want to lose. 19361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 193740808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 19386b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 19391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType *Spec 194031f17ecbef57b5679c017c375db330546b7b5145John McCall = new (Mem) TemplateSpecializationType(*this, Template, 194131f17ecbef57b5679c017c375db330546b7b5145John McCall IsCurrentInstantiation, 194231f17ecbef57b5679c017c375db330546b7b5145John McCall Args, NumArgs, 1943828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor Canon); 19441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 194555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 19461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(Spec, 0); 194755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 194855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 19491eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 1950ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1951e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1952e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1953ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1954e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1955e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 19561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualifiedNameType *T 1957e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1958e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1959e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1960e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1961789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor QualType Canon = NamedType; 1962789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (!Canon.isCanonical()) { 1963789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor Canon = getCanonicalType(NamedType); 1964789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor QualifiedNameType *CheckT 1965789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1966789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckT && "Qualified name canonical type broken"); 1967789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckT; 1968789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 1969789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 1970789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor T = new (*this) QualifiedNameType(NNS, NamedType, Canon); 1971e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1972e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1973e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1974e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1975e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 19764a2023f5014e82389d5980d307b89c545dbbac81Douglas GregorQualType ASTContext::getDependentNameType(ElaboratedTypeKeyword Keyword, 19774a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NestedNameSpecifier *NNS, 19784a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor const IdentifierInfo *Name, 19794a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor QualType Canon) { 1980d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1981d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1982d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1983d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 19844a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor ElaboratedTypeKeyword CanonKeyword = Keyword; 19854a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor if (Keyword == ETK_None) 19864a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor CanonKeyword = ETK_Typename; 19874a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor 19884a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor if (CanonNNS != NNS || CanonKeyword != Keyword) 19894a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor Canon = getDependentNameType(CanonKeyword, CanonNNS, Name); 1990d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1991d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1992d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 19934a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor DependentNameType::Profile(ID, Keyword, NNS, Name); 1994d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1995d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 19964714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor DependentNameType *T 19974714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor = DependentNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1998d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1999d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 2000d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 20014a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor T = new (*this) DependentNameType(Keyword, NNS, Name, Canon); 2002d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 20034714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor DependentNameTypes.InsertNode(T, InsertPos); 20041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 2005d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2006d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 20071eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 20084a2023f5014e82389d5980d307b89c545dbbac81Douglas GregorASTContext::getDependentNameType(ElaboratedTypeKeyword Keyword, 20094a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NestedNameSpecifier *NNS, 20104a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor const TemplateSpecializationType *TemplateId, 20114a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor QualType Canon) { 20121734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 20131734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 2014789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor llvm::FoldingSetNodeID ID; 20154a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor DependentNameType::Profile(ID, Keyword, NNS, TemplateId); 2016789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 2017789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor void *InsertPos = 0; 20184714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor DependentNameType *T 20194714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor = DependentNameTypes.FindNodeOrInsertPos(ID, InsertPos); 2020789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (T) 2021789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor return QualType(T, 0); 2022789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 20231734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 20241734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 20251734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 20264a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor ElaboratedTypeKeyword CanonKeyword = Keyword; 20274a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor if (Keyword == ETK_None) 20284a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor CanonKeyword = ETK_Typename; 20294a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor if (CanonNNS != NNS || CanonKeyword != Keyword || 20304a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor CanonType != QualType(TemplateId, 0)) { 20311734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 2032183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall = CanonType->getAs<TemplateSpecializationType>(); 20331734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 20341734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 20354a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor Canon = getDependentNameType(CanonKeyword, CanonNNS, CanonTemplateId); 20361734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 20371734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20384714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor DependentNameType *CheckT 20394714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor = DependentNameTypes.FindNodeOrInsertPos(ID, InsertPos); 2040789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckT && "Typename canonical type is broken"); (void)CheckT; 2041789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 20421734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20434a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor T = new (*this) DependentNameType(Keyword, NNS, TemplateId, Canon); 20441734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 20454714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor DependentNameTypes.InsertNode(T, InsertPos); 20461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 20471734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 20481734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20497da2431c23ef1ee8acb114e39692246e1801afc2John McCallQualType 20507da2431c23ef1ee8acb114e39692246e1801afc2John McCallASTContext::getElaboratedType(QualType UnderlyingType, 20517da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::TagKind Tag) { 20527da2431c23ef1ee8acb114e39692246e1801afc2John McCall llvm::FoldingSetNodeID ID; 20537da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::Profile(ID, UnderlyingType, Tag); 20541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20557da2431c23ef1ee8acb114e39692246e1801afc2John McCall void *InsertPos = 0; 20567da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 20577da2431c23ef1ee8acb114e39692246e1801afc2John McCall if (T) 20587da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 20597da2431c23ef1ee8acb114e39692246e1801afc2John McCall 2060789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor QualType Canon = UnderlyingType; 2061789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (!Canon.isCanonical()) { 2062789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor Canon = getCanonicalType(Canon); 2063789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor ElaboratedType *CheckT = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 2064789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckT && "Elaborated canonical type is broken"); (void)CheckT; 2065789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 20667da2431c23ef1ee8acb114e39692246e1801afc2John McCall 20677da2431c23ef1ee8acb114e39692246e1801afc2John McCall T = new (*this) ElaboratedType(UnderlyingType, Tag, Canon); 20687da2431c23ef1ee8acb114e39692246e1801afc2John McCall Types.push_back(T); 20697da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedTypes.InsertNode(T, InsertPos); 20707da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 20717da2431c23ef1ee8acb114e39692246e1801afc2John McCall} 20727da2431c23ef1ee8acb114e39692246e1801afc2John McCall 207388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 207488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 207588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 207688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 20772e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 207888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 207988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 208054e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic bool areSortedAndUniqued(ObjCProtocolDecl **Protocols, 208154e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned NumProtocols) { 208254e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols == 0) return true; 208354e14c4db764c0636160d26c5bbf491637c83a76John McCall 208454e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 1; i != NumProtocols; ++i) 208554e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!CmpProtocolNames(Protocols[i-1], Protocols[i])) 208654e14c4db764c0636160d26c5bbf491637c83a76John McCall return false; 208754e14c4db764c0636160d26c5bbf491637c83a76John McCall return true; 208854e14c4db764c0636160d26c5bbf491637c83a76John McCall} 208954e14c4db764c0636160d26c5bbf491637c83a76John McCall 209054e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic void SortAndUniqueProtocols(ObjCProtocolDecl **Protocols, 209188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 209288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 20931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 209488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 209588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 209688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 209788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 209888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 209988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 210088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 210188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2102d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 2103d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 210414108da7f7fc059772711e4ffee1322a27b152a7Steve NaroffQualType ASTContext::getObjCObjectPointerType(QualType InterfaceT, 21051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCProtocolDecl **Protocols, 2106a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian unsigned NumProtocols, 2107a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian unsigned Quals) { 2108d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff llvm::FoldingSetNodeID ID; 210914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ObjCObjectPointerType::Profile(ID, InterfaceT, Protocols, NumProtocols); 2110a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian Qualifiers Qs = Qualifiers::fromCVRMask(Quals); 2111d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 2112d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 2113d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (ObjCObjectPointerType *QT = 2114d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 2115a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian return getQualifiedType(QualType(QT, 0), Qs); 2116d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 211754e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 211854e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 211954e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!InterfaceT.isCanonical() || 212054e14c4db764c0636160d26c5bbf491637c83a76John McCall !areSortedAndUniqued(Protocols, NumProtocols)) { 212154e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!areSortedAndUniqued(Protocols, NumProtocols)) { 212254e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 212354e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 212454e14c4db764c0636160d26c5bbf491637c83a76John McCall 212554e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 212654e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 212754e14c4db764c0636160d26c5bbf491637c83a76John McCall 212854e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 212954e14c4db764c0636160d26c5bbf491637c83a76John McCall &Sorted[0], UniqueCount); 213054e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 213154e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 213254e14c4db764c0636160d26c5bbf491637c83a76John McCall Protocols, NumProtocols); 213354e14c4db764c0636160d26c5bbf491637c83a76John McCall } 213454e14c4db764c0636160d26c5bbf491637c83a76John McCall 213554e14c4db764c0636160d26c5bbf491637c83a76John McCall // Regenerate InsertPos. 213654e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 213754e14c4db764c0636160d26c5bbf491637c83a76John McCall } 213854e14c4db764c0636160d26c5bbf491637c83a76John McCall 2139fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor // No match. 2140fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor unsigned Size = sizeof(ObjCObjectPointerType) 2141fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor + NumProtocols * sizeof(ObjCProtocolDecl *); 2142fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor void *Mem = Allocate(Size, TypeAlignment); 2143fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor ObjCObjectPointerType *QType = new (Mem) ObjCObjectPointerType(Canonical, 2144fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor InterfaceT, 2145fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor Protocols, 2146fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor NumProtocols); 21471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2148d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 2149d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 2150a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian return getQualifiedType(QualType(QType, 0), Qs); 2151d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 215288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2153c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// getObjCInterfaceType - Return the unique reference to the type for the 2154c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// specified ObjC interface decl. The list of protocols is optional. 2155c15cb2af27514ecc879daba9aa01389c5203685dSteve NaroffQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, 2156a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 21574b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 2158c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 21591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21604b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 2161c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (ObjCInterfaceType *QT = 2162c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 21634b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 21641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 216554e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 216654e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 216754e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols && !areSortedAndUniqued(Protocols, NumProtocols)) { 216854e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 216954e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 21704b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 217154e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 217254e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 217324fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 217454e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCInterfaceType(Decl, &Sorted[0], UniqueCount); 217554e14c4db764c0636160d26c5bbf491637c83a76John McCall 217654e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos); 217754e14c4db764c0636160d26c5bbf491637c83a76John McCall } 217854e14c4db764c0636160d26c5bbf491637c83a76John McCall 2179fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor unsigned Size = sizeof(ObjCInterfaceType) 2180fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor + NumProtocols * sizeof(ObjCProtocolDecl *); 2181fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor void *Mem = Allocate(Size, TypeAlignment); 2182fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor ObjCInterfaceType *QType = new (Mem) ObjCInterfaceType(Canonical, 2183fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor const_cast<ObjCInterfaceDecl*>(Decl), 2184fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor Protocols, 2185fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor NumProtocols); 218624fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 218724fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis Types.push_back(QType); 218854e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.InsertNode(QType, InsertPos); 218924fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis return QualType(QType, 0); 219024fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis} 219124fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 219272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 219372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 21949752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 21951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// DeclRefExpr's. This doesn't effect the type checker, since it operates 21969752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 219772564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 2198dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType *toe; 2199b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (tofExpr->isTypeDependent()) { 2200b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor llvm::FoldingSetNodeID ID; 2201b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType::Profile(ID, *this, tofExpr); 22021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2203b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor void *InsertPos = 0; 2204b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType *Canon 2205b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); 2206b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (Canon) { 2207b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // We already have a "canonical" version of an identical, dependent 2208b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // typeof(expr) type. Use that as our canonical type. 22096b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, 2210b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor QualType((TypeOfExprType*)Canon, 0)); 2211b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2212b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor else { 2213b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // Build a new, canonical typeof(expr) type. 22146b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon 22156b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) DependentTypeOfExprType(*this, tofExpr); 2216b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); 2217b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor toe = Canon; 2218b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2219b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } else { 2220dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType Canonical = getCanonicalType(tofExpr->getType()); 22216b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, Canonical); 2222dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 22239752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 22249752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 2225d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2226d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 22279752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 22289752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 22299752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 22301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 22319752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 2232d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 2233f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 22346b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeOfType *tot = new (*this, TypeAlignment) TypeOfType(tofType, Canonical); 22359752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 22369752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 2237d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2238d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 223960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 224060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 224160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 2242a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 2243a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 22441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 224560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 224660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 224760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 224860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 224960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 225060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 225160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 225260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 225360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 225460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 225560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 225660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 225760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 225860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 225960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 22601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 226160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 22621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 226460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 226560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 226660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 22671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 226860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 226960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 227060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 2271395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 2272395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 2273395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 22741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 2275395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 2276395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 2277dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor DecltypeType *dt; 22789d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (e->isTypeDependent()) { 22799d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor llvm::FoldingSetNodeID ID; 22809d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType::Profile(ID, *this, e); 22811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22829d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor void *InsertPos = 0; 22839d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType *Canon 22849d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); 22859d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (Canon) { 22869d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // We already have a "canonical" version of an equivalent, dependent 22879d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // decltype type. Use that as our canonical type. 22886b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, DependentTy, 22899d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor QualType((DecltypeType*)Canon, 0)); 22909d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 22919d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor else { 22929d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // Build a new, canonical typeof(expr) type. 22936b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon = new (*this, TypeAlignment) DependentDecltypeType(*this, e); 22949d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeTypes.InsertNode(Canon, InsertPos); 22959d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor dt = Canon; 22969d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 22979d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } else { 2298dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType T = getDecltypeForExpr(e, *this); 22996b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, T, getCanonicalType(T)); 2300dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 2301395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 2302395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 2303395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 2304395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 23055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 23065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 2307e607ed068334bacb8d7b093996b4671c6ca79e25Mike StumpQualType ASTContext::getTagDeclType(const TagDecl *Decl) { 2308d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 2309e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // FIXME: What is the design on getTagDeclType when it requires casting 2310e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // away const? mutable? 2311e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump return getTypeDeclType(const_cast<TagDecl*>(Decl)); 23125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 23151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 23161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// needs to agree with the definition in <stddef.h>. 2317a3ccda58913cc1a4b8564e349448b12acc462da7Anders CarlssonCanQualType ASTContext::getSizeType() const { 2318b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 23195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 232164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 232264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 232364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 232464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 232564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 232664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 232764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 232864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 232964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 233064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 233164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 233264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 233364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 233464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 23358b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 23368b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 23378b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 2338b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 23398b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 23408b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 2341e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2342e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 2343e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2344e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 234554e14c4db764c0636160d26c5bbf491637c83a76John McCallCanQualType ASTContext::getCanonicalParamType(QualType T) { 234654e14c4db764c0636160d26c5bbf491637c83a76John McCall // Push qualifiers into arrays, and then discard any remaining 234754e14c4db764c0636160d26c5bbf491637c83a76John McCall // qualifiers. 234854e14c4db764c0636160d26c5bbf491637c83a76John McCall T = getCanonicalType(T); 234954e14c4db764c0636160d26c5bbf491637c83a76John McCall const Type *Ty = T.getTypePtr(); 235054e14c4db764c0636160d26c5bbf491637c83a76John McCall 235154e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Result; 235254e14c4db764c0636160d26c5bbf491637c83a76John McCall if (isa<ArrayType>(Ty)) { 235354e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getArrayDecayedType(QualType(Ty,0)); 235454e14c4db764c0636160d26c5bbf491637c83a76John McCall } else if (isa<FunctionType>(Ty)) { 235554e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getPointerType(QualType(Ty, 0)); 235654e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 235754e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = QualType(Ty, 0); 235854e14c4db764c0636160d26c5bbf491637c83a76John McCall } 235954e14c4db764c0636160d26c5bbf491637c83a76John McCall 236054e14c4db764c0636160d26c5bbf491637c83a76John McCall return CanQualType::CreateUnsafe(Result); 236154e14c4db764c0636160d26c5bbf491637c83a76John McCall} 236254e14c4db764c0636160d26c5bbf491637c83a76John McCall 236377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 236477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 236577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 236677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 236777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 236877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 236950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas GregorCanQualType ASTContext::getCanonicalType(QualType T) { 23700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 23710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ptr = Quals.strip(T); 23720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanType = Ptr->getCanonicalTypeInternal(); 23730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 23740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // The canonical internal type will be the canonical type *except* 23750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // that we push type qualifiers down through array types. 23761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If there are no new qualifiers to push down, stop here. 23780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!Quals.hasQualifiers()) 237950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(CanType); 2380c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 23810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the type qualifiers are on an array type, get the canonical 23820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type of the array with the qualifiers applied to the element 23830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type. 2384c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 2385c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 23860953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return CanQualType::CreateUnsafe(getQualifiedType(CanType, Quals)); 23871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2388c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2389c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 23900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(AT->getElementType(), Quals); 2391c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 23921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2393c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 239450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 239550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getConstantArrayType(NewEltTy, CAT->getSize(), 239650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor CAT->getSizeModifier(), 23970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2398c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 239950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 240050d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 24010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 24021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2403898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 240450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 240550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getDependentSizedArrayType(NewEltTy, 2406bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2407bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 240850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getSizeModifier(), 24090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 241087a924e37dc40c6e3e2b33d1dbd646aeccf4c15bDouglas Gregor DSAT->getBracketsRange())->getCanonicalTypeInternal()); 2411898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2412c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 241350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(getVariableArrayType(NewEltTy, 2414bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 2415bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr()->Retain() : 0, 241650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getSizeModifier(), 24170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 241850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getBracketsRange())); 2419c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 2420c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 242128e318cc6008c2bc008f0caee70dc736a03d6289Chandler CarruthQualType ASTContext::getUnqualifiedArrayType(QualType T, 242228e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth Qualifiers &Quals) { 24235535c38a2fcface6c13bc8bbeca66882de2fa227Chandler Carruth Quals = T.getQualifiers(); 242428e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (!isa<ArrayType>(T)) { 24255535c38a2fcface6c13bc8bbeca66882de2fa227Chandler Carruth return T.getUnqualifiedType(); 242628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 242728e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 242828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth const ArrayType *AT = cast<ArrayType>(T); 242928e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth QualType Elt = AT->getElementType(); 2430c1ae0a8b0022a9fbb50d3413139f36ec5d8a63beZhongxing Xu QualType UnqualElt = getUnqualifiedArrayType(Elt, Quals); 243128e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (Elt == UnqualElt) 243228e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return T; 243328e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 243428e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(T)) { 243528e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getConstantArrayType(UnqualElt, CAT->getSize(), 243628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth CAT->getSizeModifier(), 0); 243728e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 243828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 243928e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(T)) { 244028e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getIncompleteArrayType(UnqualElt, IAT->getSizeModifier(), 0); 244128e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 244228e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 244328e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth const DependentSizedArrayType *DSAT = cast<DependentSizedArrayType>(T); 244428e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getDependentSizedArrayType(UnqualElt, DSAT->getSizeExpr()->Retain(), 244528e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth DSAT->getSizeModifier(), 0, 244628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth SourceRange()); 244728e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth} 244828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 244980ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCallDeclarationName ASTContext::getNameForTemplate(TemplateName Name) { 245080ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (TemplateDecl *TD = Name.getAsTemplateDecl()) 245180ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return TD->getDeclName(); 245280ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 245380ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (DependentTemplateName *DTN = Name.getAsDependentTemplateName()) { 245480ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (DTN->isIdentifier()) { 245580ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return DeclarationNames.getIdentifier(DTN->getIdentifier()); 245680ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } else { 245780ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return DeclarationNames.getCXXOperatorName(DTN->getOperator()); 245880ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } 245980ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } 246080ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 24610bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall OverloadedTemplateStorage *Storage = Name.getAsOverloadedTemplate(); 24620bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(Storage); 24630bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall return (*Storage->begin())->getDeclName(); 246480ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall} 246580ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 246625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 246725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 246825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 246925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 247097fbaa2a38804268a024f1a104b43fcf8b4411b0Argyrios Kyrtzidis return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); 247125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 24720bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(!Name.getAsOverloadedTemplate()); 24731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 247425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 247525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 247625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 247725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 247825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 2479db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregorbool ASTContext::hasSameTemplateName(TemplateName X, TemplateName Y) { 2480db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor X = getCanonicalTemplateName(X); 2481db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor Y = getCanonicalTemplateName(Y); 2482db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor return X.getAsVoidPointer() == Y.getAsVoidPointer(); 2483db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor} 2484db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor 24851eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateArgument 24861275ae098acda31fe0e434510c729fcfed0458a1Douglas GregorASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) { 24871275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor switch (Arg.getKind()) { 24881275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Null: 24891275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 24901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24911275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Expression: 24921275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 24931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24941275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Declaration: 2495833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(Arg.getAsDecl()->getCanonicalDecl()); 24961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2497788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor case TemplateArgument::Template: 2498788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor return TemplateArgument(getCanonicalTemplateName(Arg.getAsTemplate())); 2499788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor 25001275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Integral: 2501833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(*Arg.getAsIntegral(), 25021275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getIntegralType())); 25031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25041275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Type: 2505833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(getCanonicalType(Arg.getAsType())); 25061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25071275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Pack: { 25081275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Allocate in ASTContext 25091275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument *CanonArgs = new TemplateArgument[Arg.pack_size()]; 25101275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor unsigned Idx = 0; 25111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (TemplateArgument::pack_iterator A = Arg.pack_begin(), 25121275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor AEnd = Arg.pack_end(); 25131275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor A != AEnd; (void)++A, ++Idx) 25141275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs[Idx] = getCanonicalTemplateArgument(*A); 25151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25161275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument Result; 25171275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Result.setArgumentPack(CanonArgs, Arg.pack_size(), false); 25181275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Result; 25191275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 25201275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 25211275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 25221275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Silence GCC warning 25231275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor assert(false && "Unhandled template argument kind"); 25241275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(); 25251275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor} 25261275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 2527d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 2528d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 25291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!NNS) 2530d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2531d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2532d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 2533d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 2534d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 25351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 2536d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 2537d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 2538d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2539d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 2540d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 2541d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 2542d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 2543d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2544d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 2545d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 2546d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 25471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 0, 25481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 2549d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 2550d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2551d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2552d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 2553d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 2554d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2555d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2556d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2557d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2558d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2559d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2560d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2561c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2562c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2563c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 2564a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor if (!T.hasLocalQualifiers()) { 2565c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2566c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2567c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2568c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 25691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Handle the common negative case fast. 2571c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 25720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!isa<ArrayType>(CType)) 2573c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 25741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Apply any qualifiers from the array type to the element type. This 2576c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2577c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 25781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2579c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2580c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 258150d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor // we must propagate them down into the element type. 25820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 25830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 25840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ty = Qs.strip(T.getDesugaredType()); 25851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2586c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2587c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 25880953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ATy == 0 || Qs.empty()) 2589c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 25901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2591c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2592c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2593c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2594c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 25950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(ATy->getElementType(), Qs); 25961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2597c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2598c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2599c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 26000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2601c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2602c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2603c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 26040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 2605898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 26061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const DependentSizedArrayType *DSAT 2607898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2608898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 26091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getDependentSizedArrayType(NewEltTy, 2610bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2611bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 2612898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 26130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 26147e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 26151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2616c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 26177e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 2618bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 26190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getSizeExpr()->Retain() : 0, 2620c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 26210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 26227e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 262377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 262477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 262577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2626e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2627e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2628e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2629e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2630e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2631e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2632e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2633c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2634c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2635c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2636c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2637c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2638c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 26391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2640c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2641e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2642e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 26430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getQualifiedType(PtrTy, PrettyArrayType->getIndexTypeQualifiers()); 2644e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2645e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 26465e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas GregorQualType ASTContext::getBaseElementType(QualType QT) { 26470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 26485e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor while (true) { 26490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *UT = Qs.strip(QT); 26505e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor if (const ArrayType *AT = getAsArrayType(QualType(UT,0))) { 26515e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QT = AT->getElementType(); 26526dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump } else { 26530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qs.apply(QT); 26545e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 26555e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 26565e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor} 26575e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor 2658fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders CarlssonQualType ASTContext::getBaseElementType(const ArrayType *AT) { 2659fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson QualType ElemTy = AT->getElementType(); 26601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2661fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson if (const ArrayType *AT = getAsArrayType(ElemTy)) 2662fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson return getBaseElementType(AT); 26631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26646183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 26656183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 26666183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 26670de78998e7bda473b408437053e48661b510d453Fariborz Jahanian/// getConstantArrayElementCount - Returns number of constant array elements. 26681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpuint64_t 26690de78998e7bda473b408437053e48661b510d453Fariborz JahanianASTContext::getConstantArrayElementCount(const ConstantArrayType *CA) const { 26700de78998e7bda473b408437053e48661b510d453Fariborz Jahanian uint64_t ElementCount = 1; 26710de78998e7bda473b408437053e48661b510d453Fariborz Jahanian do { 26720de78998e7bda473b408437053e48661b510d453Fariborz Jahanian ElementCount *= CA->getSize().getZExtValue(); 26730de78998e7bda473b408437053e48661b510d453Fariborz Jahanian CA = dyn_cast<ConstantArrayType>(CA->getElementType()); 26740de78998e7bda473b408437053e48661b510d453Fariborz Jahanian } while (CA); 26750de78998e7bda473b408437053e48661b510d453Fariborz Jahanian return ElementCount; 26760de78998e7bda473b408437053e48661b510d453Fariborz Jahanian} 26770de78998e7bda473b408437053e48661b510d453Fariborz Jahanian 26785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 26795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2680a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2681183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) 26825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2683a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2684183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall assert(T->getAs<BuiltinType>() && "getFloatingRank(): not a floating type"); 2685183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall switch (T->getAs<BuiltinType>()->getKind()) { 2686a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 26875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 26885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 26895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 26905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 26925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 26931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 26941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// point or a complex type (based on typeDomain/typeSize). 2695716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2696716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 26971361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 26981361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 26991361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 27001361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 27011361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2702716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2703f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2704f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2705f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2706f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2707f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 27081361b11066239ea15764a2a844405352d87296b3Chris Lattner 27091361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 27101361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 27111361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 27121361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 27131361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 27141361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 27155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 27175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 27187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 27197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 27207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 27211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 2722a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2723a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2724a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 27251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2726a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2727fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2728a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2729fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2730fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 27315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 27325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2733f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2734f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2735f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2736f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2737467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(T->isCanonicalUnqualified() && "T should be canonicalized"); 2738f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2739842aef8d942a880eeb9535d40de31a86838264cbJohn McCall T = ET->getDecl()->getPromotionType().getTypePtr(); 2740f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2741a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2742a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2743a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2744f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2745f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2746f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2747f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2748f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2749f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2750f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 27517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 27527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2753f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 27547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 27557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 27567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 27577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2758f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 27597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 27607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2761f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 27627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 27637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2764f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 27657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 27667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2767f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 27687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 27697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2770f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 27712df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 27722df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 27732df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2774f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2775f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2776f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 277704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \brief Whether this is a promotable bitfield reference according 277804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// to C99 6.3.1.1p2, bullet 2 (and GCC extensions). 277904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// 278004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \returns the type this bit-field will promote to, or NULL if no 278104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// promotion occurs. 278204e8357f6801e9ff52673e7e899a67bbabf9de93Eli FriedmanQualType ASTContext::isPromotableBitField(Expr *E) { 278304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman FieldDecl *Field = E->getBitField(); 278404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (!Field) 278504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 278604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 278704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman QualType FT = Field->getType(); 278804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 278904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman llvm::APSInt BitWidthAP = Field->getBitWidth()->EvaluateAsInt(*this); 279004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t BitWidth = BitWidthAP.getZExtValue(); 279104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 279204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // GCC extension compatibility: if the bit-field size is less than or equal 279304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // to the size of int, it gets promoted no matter what its type is. 279404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // For instance, unsigned long bf : 4 gets promoted to signed int. 279504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth < IntSize) 279604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return IntTy; 279704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 279804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth == IntSize) 279904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return FT->isSignedIntegerType() ? IntTy : UnsignedIntTy; 280004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 280104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // Types bigger than int are not subject to promotions, and therefore act 280204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // like the base type. 280304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // FIXME: This doesn't quite match what gcc does, but what gcc does here 280404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // is ridiculous. 280504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 280604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman} 280704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 2808a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// getPromotedIntegerType - Returns the type that Promotable will 2809a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// promote to: C99 6.3.1.1p2, assuming that Promotable is a promotable 2810a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// integer type. 2811a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType ASTContext::getPromotedIntegerType(QualType Promotable) { 2812a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(!Promotable.isNull()); 2813a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isPromotableIntegerType()); 2814842aef8d942a880eeb9535d40de31a86838264cbJohn McCall if (const EnumType *ET = Promotable->getAs<EnumType>()) 2815842aef8d942a880eeb9535d40de31a86838264cbJohn McCall return ET->getDecl()->getPromotionType(); 2816a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (Promotable->isSignedIntegerType()) 2817a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return IntTy; 2818a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t PromotableSize = getTypeSize(Promotable); 2819a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 2820a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize); 2821a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return (PromotableSize != IntSize) ? IntTy : UnsignedIntTy; 2822a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 2823a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 28241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getIntegerTypeOrder - Returns the highest ranked integer type: 28257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 28261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 28277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2828f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2829f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 28307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 28311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2832f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2833f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 28341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 28367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 28371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 28397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 28407cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 28417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 28421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 28447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 28457cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 28467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 28477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 28481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 28507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 28511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 28527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 28537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 28547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 28557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 28567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 28577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 28581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 28607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 28611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 28627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 28635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 286471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 286579cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlssonstatic RecordDecl * 286679cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders CarlssonCreateRecordDecl(ASTContext &Ctx, RecordDecl::TagKind TK, DeclContext *DC, 286779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson SourceLocation L, IdentifierInfo *Id) { 286879cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson if (Ctx.getLangOptions().CPlusPlus) 286979cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson return CXXRecordDecl::Create(Ctx, TK, DC, L, Id); 287079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson else 287179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson return RecordDecl::Create(Ctx, TK, DC, L, Id); 287279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson} 287379cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson 28741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// getCFConstantStringType - Return the type used for constant CFStrings. 287571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 287671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 28771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CFConstantStringTypeDecl = 287879cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 287979cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("NSConstantString")); 28805cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall CFConstantStringTypeDecl->startDefinition(); 288179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson 2882f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 28831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 288471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 28850953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[0] = getPointerType(IntTy.withConst()); 2886f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2887f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 288871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 28890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[2] = getPointerType(CharTy.withConst()); 289071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 28911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[3] = LongTy; 28921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 289344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 289444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 28951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 289644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 2897a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 28981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 28994afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 290017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 290144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 290244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2903838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor CFConstantStringTypeDecl->completeDefinition(); 290471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 29051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 290671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 29078467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2908b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2909319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 29106217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2911319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2912319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2913319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2914319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 29152bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian// getNSConstantStringType - Return the type used for constant NSStrings. 29162bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz JahanianQualType ASTContext::getNSConstantStringType() { 29172bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian if (!NSConstantStringTypeDecl) { 29182bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian NSConstantStringTypeDecl = 29192bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 29202bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian &Idents.get("__builtin_NSString")); 29212bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian NSConstantStringTypeDecl->startDefinition(); 29222bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 29232bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian QualType FieldTypes[3]; 29242bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 29252bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian // const int *isa; 29262bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian FieldTypes[0] = getPointerType(IntTy.withConst()); 29272bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian // const char *str; 29282bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian FieldTypes[1] = getPointerType(CharTy.withConst()); 29292bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian // unsigned int length; 29302bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian FieldTypes[2] = UnsignedIntTy; 29312bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 29322bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian // Create fields 29332bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian for (unsigned i = 0; i < 3; ++i) { 29342bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian FieldDecl *Field = FieldDecl::Create(*this, NSConstantStringTypeDecl, 29352bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian SourceLocation(), 0, 29362bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian FieldTypes[i], /*TInfo=*/0, 29372bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian /*BitWidth=*/0, 29382bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian /*Mutable=*/false); 29392bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian NSConstantStringTypeDecl->addDecl(Field); 29402bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian } 29412bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 29422bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian NSConstantStringTypeDecl->completeDefinition(); 29432bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian } 29442bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 29452bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian return getTagDeclType(NSConstantStringTypeDecl); 29462bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian} 29472bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 29482bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanianvoid ASTContext::setNSConstantStringType(QualType T) { 29492bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian const RecordType *Rec = T->getAs<RecordType>(); 29502bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian assert(Rec && "Invalid NSConstantStringType"); 29512bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian NSConstantStringTypeDecl = Rec->getDecl(); 29522bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian} 29532bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 29541eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getObjCFastEnumerationStateType() { 2955bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 295644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 295779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 295879cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__objcFastEnumerationState")); 29595cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall ObjCFastEnumerationStateTypeDecl->startDefinition(); 29601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2961bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2962bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2963de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff getPointerType(ObjCIdTypedefType), 2964bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2965bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2966bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2967bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 29681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 296944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 29701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, 29711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCFastEnumerationStateTypeDecl, 29721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation(), 0, 2973a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 29741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 29754afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 297617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 297744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 29781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2979838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(); 2980bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 29811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2982bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2983bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2984bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2985adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike StumpQualType ASTContext::getBlockDescriptorType() { 2986adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump if (BlockDescriptorType) 2987adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 2988adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2989adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 2990adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Needs the FlagAppleBlock bit. 299179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 299279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__block_descriptor")); 29935cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 2994adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2995adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 2996adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2997adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2998adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2999adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3000adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 3001adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "reserved", 3002083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size" 3003adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3004adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3005adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 2; ++i) { 3006adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldDecl *Field = FieldDecl::Create(*this, 3007adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T, 3008adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump SourceLocation(), 3009adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 3010a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3011adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*BitWidth=*/0, 3012adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*Mutable=*/false); 3013adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 3014adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 3015adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3016838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3017adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3018adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = T; 3019adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3020adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 3021adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3022adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3023adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stumpvoid ASTContext::setBlockDescriptorType(QualType T) { 3024adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const RecordType *Rec = T->getAs<RecordType>(); 3025adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump assert(Rec && "Invalid BlockDescriptorType"); 3026adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = Rec->getDecl(); 3027adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3028adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3029083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike StumpQualType ASTContext::getBlockDescriptorExtendedType() { 3030083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump if (BlockDescriptorExtendedType) 3031083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 3032083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3033083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump RecordDecl *T; 3034083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump // FIXME: Needs the FlagAppleBlock bit. 303579cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 303679cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__block_descriptor_withcopydispose")); 30375cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 3038083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3039083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump QualType FieldTypes[] = { 3040083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 3041083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 3042083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy), 3043083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy) 3044083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 3045083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3046083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const char *FieldNames[] = { 3047083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "reserved", 3048083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size", 3049083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "CopyFuncPtr", 3050083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "DestroyFuncPtr" 3051083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 3052083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3053083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump for (size_t i = 0; i < 4; ++i) { 3054083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump FieldDecl *Field = FieldDecl::Create(*this, 3055083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T, 3056083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump SourceLocation(), 3057083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump &Idents.get(FieldNames[i]), 3058a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3059083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*BitWidth=*/0, 3060083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*Mutable=*/false); 3061083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T->addDecl(Field); 3062083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump } 3063083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3064838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3065083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3066083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = T; 3067083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3068083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 3069083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 3070083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3071083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stumpvoid ASTContext::setBlockDescriptorExtendedType(QualType T) { 3072083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const RecordType *Rec = T->getAs<RecordType>(); 3073083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump assert(Rec && "Invalid BlockDescriptorType"); 3074083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = Rec->getDecl(); 3075083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 3076083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3077af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stumpbool ASTContext::BlockRequiresCopying(QualType Ty) { 3078af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isBlockPointerType()) 3079af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3080af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (isObjCNSObjectType(Ty)) 3081af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3082af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isObjCObjectPointerType()) 3083af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3084af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return false; 3085af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump} 3086af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3087af7b44d847d3e44c43346d508b2e55a6254b6e9dMike StumpQualType ASTContext::BuildByRefType(const char *DeclName, QualType Ty) { 3088af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // type = struct __Block_byref_1_X { 3089ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // void *__isa; 3090af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // struct __Block_byref_1_X *__forwarding; 3091ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __flags; 3092ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __size; 309338e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__copy_helper; // as needed 309438e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__destroy_help // as needed 3095af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // int X; 3096ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // } * 3097ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3098af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump bool HasCopyAndDispose = BlockRequiresCopying(Ty); 3099af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3100af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // FIXME: Move up 31014d0d85c3370f2726c74ba0ece0a5e712830a1d82Fariborz Jahanian static unsigned int UniqueBlockByRefTypeID = 0; 3102f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 3103f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__Block_byref_" << 3104f5942a44880be26878592eb052b737579349411eBenjamin Kramer ++UniqueBlockByRefTypeID << '_' << DeclName; 3105af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump RecordDecl *T; 310679cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 310779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get(Name.str())); 3108af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->startDefinition(); 3109af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType Int32Ty = IntTy; 3110af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump assert(getIntWidth(IntTy) == 32 && "non-32bit int not supported"); 3111af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType FieldTypes[] = { 3112af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3113af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(getTagDeclType(T)), 3114af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 3115af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 3116af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3117af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3118af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Ty 3119af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 3120af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3121af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump const char *FieldNames[] = { 3122af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__isa", 3123af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__forwarding", 3124af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__flags", 3125af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__size", 3126af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__copy_helper", 3127af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__destroy_helper", 3128af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump DeclName, 3129af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 3130af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3131af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump for (size_t i = 0; i < 7; ++i) { 3132af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (!HasCopyAndDispose && i >=4 && i <= 5) 3133af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump continue; 3134af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3135af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump &Idents.get(FieldNames[i]), 3136a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3137af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump /*BitWidth=*/0, /*Mutable=*/false); 3138af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->addDecl(Field); 3139af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump } 3140af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3141838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3142af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3143af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return getPointerType(getTagDeclType(T)); 3144ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump} 3145ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3146ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3147ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike StumpQualType ASTContext::getBlockParmType( 3148083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump bool BlockHasCopyDispose, 3149ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump llvm::SmallVector<const Expr *, 8> &BlockDeclRefDecls) { 3150adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Move up 31514d0d85c3370f2726c74ba0ece0a5e712830a1d82Fariborz Jahanian static unsigned int UniqueBlockParmTypeID = 0; 3152f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 3153f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__block_literal_" 3154f5942a44880be26878592eb052b737579349411eBenjamin Kramer << ++UniqueBlockParmTypeID; 3155adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 315679cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 315779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get(Name.str())); 31585cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 3159adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 3160adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 3161adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 3162adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 3163adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 3164083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump (BlockHasCopyDispose ? 3165083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorExtendedType()) : 3166083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorType())) 3167adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3168adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3169adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 3170adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__isa", 3171adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__flags", 3172adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__reserved", 3173adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__FuncPtr", 3174adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__descriptor" 3175adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3176adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3177adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 5; ++i) { 3178ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3179adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 3180a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3181ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 3182ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump T->addDecl(Field); 3183ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3184ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3185ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump for (size_t i = 0; i < BlockDeclRefDecls.size(); ++i) { 3186ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const Expr *E = BlockDeclRefDecls[i]; 3187ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(E); 3188ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump clang::IdentifierInfo *Name = 0; 3189ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE) { 3190ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const ValueDecl *D = BDRE->getDecl(); 3191ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump Name = &Idents.get(D->getName()); 3192ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3193ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump QualType FieldType = E->getType(); 3194ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3195ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE && BDRE->isByRef()) 3196af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType = BuildByRefType(BDRE->getDecl()->getNameAsCString(), 3197af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType); 3198ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3199ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3200a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Name, FieldType, /*TInfo=*/0, 3201ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 3202adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 3203adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 3204adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3205838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3206ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3207ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump return getPointerType(getTagDeclType(T)); 3208adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3209adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3210319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 32116217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 3212319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 3213319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 3214319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 3215319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3216e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 3217e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 32182d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 3219e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 3220bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 3221bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 32221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 322385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 322485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 322585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 3226a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 322733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 3228aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen DyckCharUnits ASTContext::getObjCEncodingTypeSize(QualType type) { 3229199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits sz = getTypeSizeInChars(type); 32301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 323133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 3232199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck if (sz.isPositive() && type->isIntegralType()) 3233199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck sz = std::max(sz, getTypeSizeInChars(IntTy)); 323433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 323533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 3236199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck sz = getTypeSizeInChars(VoidPtrTy); 3237aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck return sz; 3238199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck} 3239199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck 3240199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyckstatic inline 3241199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyckstd::string charUnitsToString(const CharUnits &CU) { 3242199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return llvm::itostr(CU.getQuantity()); 324333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 324433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 32456f46c2653c1545cc3fef0c0df996d18160160ce8Fariborz Jahanian/// getObjCEncodingForBlockDecl - Return the encoded type for this block 32465e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall/// declaration. 32475e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnallvoid ASTContext::getObjCEncodingForBlock(const BlockExpr *Expr, 32485e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall std::string& S) { 32495e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall const BlockDecl *Decl = Expr->getBlockDecl(); 32505e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType BlockTy = 32515e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall Expr->getType()->getAs<BlockPointerType>()->getPointeeType(); 32525e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Encode result type. 32535e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall getObjCEncodingForType(cast<FunctionType>(BlockTy)->getResultType(), S); 32545e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Compute size of all parameters. 32555e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Start with computing size of a pointer in number of bytes. 32565e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // FIXME: There might(should) be a better way of doing this computation! 32575e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall SourceLocation Loc; 3258199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); 3259199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits ParmOffset = PtrSize; 32606f46c2653c1545cc3fef0c0df996d18160160ce8Fariborz Jahanian for (BlockDecl::param_const_iterator PI = Decl->param_begin(), 32615e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall E = Decl->param_end(); PI != E; ++PI) { 32625e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType PType = (*PI)->getType(); 3263aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck CharUnits sz = getObjCEncodingTypeSize(PType); 3264199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck assert (sz.isPositive() && "BlockExpr - Incomplete param type"); 32655e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset += sz; 32665e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } 32675e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Size of the argument frame 3268199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 32695e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Block pointer and offset. 32705e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall S += "@?0"; 32715e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset = PtrSize; 32725e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall 32735e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Argument types. 32745e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset = PtrSize; 32755e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall for (BlockDecl::param_const_iterator PI = Decl->param_begin(), E = 32765e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall Decl->param_end(); PI != E; ++PI) { 32775e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmVarDecl *PVDecl = *PI; 32785e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType PType = PVDecl->getOriginalType(); 32795e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall if (const ArrayType *AT = 32805e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 32815e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Use array's original type only if it has known number of 32825e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // elements. 32835e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall if (!isa<ConstantArrayType>(AT)) 32845e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall PType = PVDecl->getType(); 32855e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } else if (PType->isFunctionType()) 32865e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall PType = PVDecl->getType(); 32875e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall getObjCEncodingForType(PType, S); 3288199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 3289aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck ParmOffset += getObjCEncodingTypeSize(PType); 32905e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } 32915e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall} 32925e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall 3293a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 329433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 32951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 3296e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3297c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3298ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 3299a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 330033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 33010d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 330233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 330333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 330433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 330533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 3306199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); 330733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 330833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 3309199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits ParmOffset = 2 * PtrSize; 331089951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 33117732cc9c0fdc97a2f8cce4e5933d8103213d1aefFariborz Jahanian E = Decl->sel_param_end(); PI != E; ++PI) { 331289951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 3313aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck CharUnits sz = getObjCEncodingTypeSize(PType); 3314199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck assert (sz.isPositive() && 3315199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck "getObjCEncodingForMethodDecl - Incomplete param type"); 331633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 331733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 3318199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 331933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 3320199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(PtrSize); 33211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 332233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 332333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 332489951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 33257732cc9c0fdc97a2f8cce4e5933d8103213d1aefFariborz Jahanian E = Decl->sel_param_end(); PI != E; ++PI) { 332689951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 33271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType PType = PVDecl->getOriginalType(); 33284306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 3329ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 3330ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 3331ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 3332bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 3333ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3334ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 3335ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3336ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 333733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 33384306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 33390d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 3340199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 3341aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck ParmOffset += getObjCEncodingTypeSize(PType); 334233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 334333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 334433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 3345c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 334683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 3347c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 3348c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 33491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Property attributes are stored as a comma-delimited C string. The simple 33501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// attributes readonly and bycopy are encoded as single characters. The 33511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parametrized attributes, getter=name, setter=name, and ivar=name, are 33521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// encoded as single characters, followed by an identifier. Property types 33531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// are also encoded as a parametrized attribute. The characters used to encode 335483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 335583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 335683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 335783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 335883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 335983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 336083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 336183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 336283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 336383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 336483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 336583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 336683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 336783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 336883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 336983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 33701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 3371c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 3372e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3373c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 3374c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 3375c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 3376c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3377c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 3378c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 33791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCCategoryImplDecl *CID = 3380c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 3381c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 338217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 3383653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3384c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3385c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3386c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3387c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3388c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3389c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3390c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3391c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3392c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3393c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 339461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 3395c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 339617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 3397653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3398c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3399c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3400c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3401c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3402c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3403c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3404c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3405c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 34061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3407c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3408c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3409c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3410c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3411c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 3412c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3413c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 3414090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 3415090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 34161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 3417090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 3418090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 3419c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3420c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 3421c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 3422c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3423c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 3424c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 3425c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 34261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case ObjCPropertyDecl::Retain: S += ",&"; break; 3427c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3428c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3429c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3430c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 3431c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 3432c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 3433c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 3434c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3435090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 3436090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 34371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3438c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 3439c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 3440077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 3441c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3442c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3443c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 3444c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 3445077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 3446c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3447c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3448c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 3449c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 3450c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 345139f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 3452c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3453c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3454c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 3455c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 3456c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3457a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 34581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Another legacy compatibility encoding: 32-bit longs are encoded as 34591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 'l' or 'L' , but not always. For typedefs, we need to use 3460a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 3461a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 3462a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 34638e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(PointeeTy.getTypePtr())) { 3464183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = PointeeTy->getAs<BuiltinType>()) { 3465c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 3466c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3467a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 34681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else 3469c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 3470c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3471a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 3472a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3473a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3474a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 3475a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 34767d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 3477153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 347882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 347982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 348082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 348182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 34821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(T, S, true, true, Field, 34835b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 348482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 348582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 34861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void EncodeBitField(const ASTContext *Context, std::string& S, 3487153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 34888b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 34898b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 34908b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 34919a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 34928b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 34938b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 34948b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 34958b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 349601eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar// FIXME: Use SmallString for accumulating string. 349782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 349882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 349982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 3500153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 3501090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 35026ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 3503183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = T->getAs<BuiltinType>()) { 3504ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD && FD->isBitField()) 3505ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return EncodeBitField(this, S, FD); 3506ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner char encoding; 3507ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner switch (BT->getKind()) { 35081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: assert(0 && "Unhandled builtin type kind"); 3509ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 3510ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 3511ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_U: 3512ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 3513ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 3514ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 35151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::ULong: 35161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 35171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 351872696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 3519ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 3520ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 3521ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_S: 3522ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 3523ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Short: encoding = 's'; break; 3524ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 35251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::Long: 35261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 35271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 3528ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner break; 3529ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 3530ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 3531ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 3532ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 3533ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 353443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 35351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3536ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += encoding; 3537ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3538ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3540183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) { 3541c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 35421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 3543c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 3544ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3545ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 354660bce3ef20a4c9684e3825cdd739fefb9810327dFariborz Jahanian 3547aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian // encoding for pointer or r3eference types. 3548aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian QualType PointeeTy; 35496217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const PointerType *PT = T->getAs<PointerType>()) { 35508d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian if (PT->isObjCSelType()) { 35518d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian S += ':'; 35528d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian return; 35538d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian } 3554aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian PointeeTy = PT->getPointeeType(); 3555aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian } 3556aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian else if (const ReferenceType *RT = T->getAs<ReferenceType>()) 3557aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian PointeeTy = RT->getPointeeType(); 3558aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian if (!PointeeTy.isNull()) { 3559a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 3560a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 3561a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 3562a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 35631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Also, do not emit the 'r' for anything but the outermost type! 35648e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(T.getTypePtr())) { 3565a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 3566a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3567a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3568a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 35699fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (OutermostType) { 3570a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 35716217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek while (P->getAs<PointerType>()) 35726217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek P = P->getAs<PointerType>()->getPointeeType(); 3573a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 3574a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3575a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3576a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3577a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3578a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 3579a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 3580a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 3581a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 3582a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 3583a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 3584a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 3585a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 3586a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 3587a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3588a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 35891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 359085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 359185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 359285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 3593e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 359485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 359585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 359685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 35976217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek } else if (const RecordType *RTy = PointeeTy->getAs<RecordType>()) { 35989533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_class *" to "#". 35999533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { 36009533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '#'; 36019533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 36029533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 36039533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_object *" to "@". 36049533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { 36059533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '@'; 36069533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 36079533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 36089533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // fall through... 360985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 361085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 3611a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 3612a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 36131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 361443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 3615ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3616ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3617aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian 3618ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ArrayType *AT = 3619ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Ignore type qualifiers etc. 3620ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 3621559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 3622559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 3623559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 3624559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 36251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3626559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3627559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 3628559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 36291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3630559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 3631559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 3632559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 3633559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 3634559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 3635559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 3636559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 36371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3639559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3640559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 3641559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 3642ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3643ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3645183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (T->getAs<FunctionType>()) { 3646c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 3647ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3648ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36506217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *RTy = T->getAs<RecordType>()) { 365182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 3652d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 3653502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 3654502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 3655502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 3656502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 3657502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 3658502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 36590d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 36607d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 366117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 366217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 366344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 366443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 3665d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 366644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 3667d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 3668d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 36691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3670d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 367143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 36721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 367343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 3674d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 3675a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 3676a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 36771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(qt, S, false, true, 367843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 3679d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 36807d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 36816de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 3682d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 3683ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3684ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3686ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isEnumeralType()) { 36878b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 36888b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 36898b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 36908b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 3691ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3692ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3694ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isBlockPointerType()) { 369521a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 3696ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3697ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (const ObjCInterfaceType *OIT = T->getAs<ObjCInterfaceType>()) { 370043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 37010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ObjCInterfaceDecl *OI = OIT->getDecl(); 370243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 370343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 370443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 370543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 3706f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 370743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 3708f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 370943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 37101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 371143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 371243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 37131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 371443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 371543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 371643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 3717ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 371843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 37191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3720183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = T->getAs<ObjCObjectPointerType>()) { 372114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (OPT->isObjCIdType()) { 372214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '@'; 372314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3724ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 372627d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->isObjCClassType() || OPT->isObjCQualifiedClassType()) { 372727d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // FIXME: Consider if we need to output qualifiers for 'Class<p>'. 372827d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // Since this is a binary compatibility issue, need to consult with runtime 372927d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // folks. Fortunately, this is a *very* obsure construct. 373014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '#'; 373114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3732ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3734ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCQualifiedIdType()) { 37351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(getObjCIdType(), S, 373614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandPointedToStructures, 373714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandStructures, FD); 373814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (FD || EncodingProperty) { 373914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Note that we do extended encoding of protocol qualifer list 374014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Only when doing ivar or property encoding. 374114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 374267ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 374367ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 374414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '<'; 374514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += (*I)->getNameAsString(); 374614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '>'; 374714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 374814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 374914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 375014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3751ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3753ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner QualType PointeeTy = OPT->getPointeeType(); 3754ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (!EncodingProperty && 3755ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner isa<TypedefType>(PointeeTy.getTypePtr())) { 3756ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Another historical/compatibility reason. 37571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We encode the underlying type which comes out as 3758ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // {...}; 3759ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '^'; 37601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, 37611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump false, ExpandPointedToStructures, 3762ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner NULL); 376314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 376414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 3765ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3766ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '@'; 376727d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->getInterfaceDecl() && (FD || EncodingProperty)) { 3768ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 376927d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff S += OPT->getInterfaceDecl()->getIdentifier()->getName(); 377067ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 377167ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 3772ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '<'; 3773ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += (*I)->getNameAsString(); 3774ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '>'; 37751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3776ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 3777ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3778ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3779ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3781ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner assert(0 && "@encode for type not implemented!"); 378285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 378385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 37841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 3785ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 3786ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 3787ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 3788ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 3789ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 3790ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 3791ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 3792ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 3793ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 3794ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 3795ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 3796ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 3797ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 3798ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 3799ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 3800ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setBuiltinVaListType(QualType T) { 3801b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 38021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3803b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 3804b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 3805b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3806ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCIdType(QualType T) { 3807de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = T; 38087e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 38097e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 3810ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCSelType(QualType T) { 381113dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian ObjCSelTypedefType = T; 3812b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 3813b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3814ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCProtoType(QualType QT) { 3815a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 3816390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 3817390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 3818ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCClassType(QualType T) { 3819de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = T; 38208baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 38218baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3822a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 38231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(ObjCConstantStringType.isNull() && 38242198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 38251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3826a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 38272198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 38282198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 38290bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall/// \brief Retrieve the template name that corresponds to a non-empty 38300bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall/// lookup. 3831eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCallTemplateName ASTContext::getOverloadedTemplateName(UnresolvedSetIterator Begin, 3832eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCall UnresolvedSetIterator End) { 38330bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall unsigned size = End - Begin; 38340bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(size > 1 && "set is not overloaded!"); 38357532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38360bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall void *memory = Allocate(sizeof(OverloadedTemplateStorage) + 38370bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall size * sizeof(FunctionTemplateDecl*)); 38380bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall OverloadedTemplateStorage *OT = new(memory) OverloadedTemplateStorage(size); 38390bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall 38400bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl **Storage = OT->getStorage(); 3841eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCall for (UnresolvedSetIterator I = Begin; I != End; ++I) { 38420bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl *D = *I; 38430bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(isa<FunctionTemplateDecl>(D) || 38440bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall (isa<UsingShadowDecl>(D) && 38450bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))); 38460bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall *Storage++ = D; 38477532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 38487532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38490bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall return TemplateName(OT); 38507532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 38517532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3852d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// \brief Retrieve the template name that represents a qualified 3853d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// template name such as \c std::vector. 38541eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 3855d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor bool TemplateKeyword, 38560bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall TemplateDecl *Template) { 3857789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor // FIXME: Canonicalization? 3858d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor llvm::FoldingSetNodeID ID; 3859d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 38601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3861d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor void *InsertPos = 0; 3862d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName *QTN = 38630bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3864d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor if (!QTN) { 3865d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 3866d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 3867d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor } 38681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3869d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor return TemplateName(QTN); 3870d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor} 3871d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 38727532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 38737532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 38741eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 38757532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 38761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((!NNS || NNS->isDependent()) && 38773b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor "Nested name specifier must be dependent"); 38787532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38797532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 38807532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 38817532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38827532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 38837532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 38847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 38857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38867532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 38877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 38887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38897532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 38907532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 38917532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 38927532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 38937532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 38947532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 3895789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *CheckQTN = 3896789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3897789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckQTN && "Dependent type name canonicalization broken"); 3898789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckQTN; 38997532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 39007532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 39017532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 39027532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 39037532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 39047532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3905ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Retrieve the template name that represents a dependent 3906ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// template name such as \c MetaFun::template operator+. 3907ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorTemplateName 3908ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 3909ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor OverloadedOperatorKind Operator) { 3910ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor assert((!NNS || NNS->isDependent()) && 3911ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor "Nested name specifier must be dependent"); 3912ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3913ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor llvm::FoldingSetNodeID ID; 3914ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateName::Profile(ID, NNS, Operator); 3915ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3916ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor void *InsertPos = 0; 3917789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *QTN 3918789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3919ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3920ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (QTN) 3921ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 3922ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3923ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 3924ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (CanonNNS == NNS) { 3925ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator); 3926ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 3927ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Operator); 3928ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator, Canon); 3929789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 3930789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *CheckQTN 3931789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3932789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckQTN && "Dependent template name canonicalization broken"); 3933789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckQTN; 3934ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 3935ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3936ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 3937ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 3938ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor} 3939ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3940b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 3941d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 3942d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 3943e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallCanQualType ASTContext::getFromTargetType(unsigned Type) const { 3944b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 3945e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall case TargetInfo::NoInt: return CanQualType(); 3946b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 3947b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 3948b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 3949b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 3950b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 3951b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 3952b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 3953b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 3954b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 3955b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 3956b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 3957e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall return CanQualType(); 3958b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 3959b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3960b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3961b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 3962b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3963b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3964fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 3965fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 3966fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 3967f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff/// FIXME: Move to Type. 3968fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 3969fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 3970fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 3971fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 397240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 3973fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 3974fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 39751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return false; 3976fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 3977fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 39784fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 39794fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 39804fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 39810953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualifiers::GC ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 39820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttrs = Qualifiers::GCNone; 39834fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 39844fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 3985b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 39864fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 39871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // (or pointers to them) be treated as though they were declared 3988a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 39890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GCAttrs == Qualifiers::GCNone) { 399075212ee91313bc1b6dd826d9b173541bc4016539Fariborz Jahanian if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) 39910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttrs = Qualifiers::Strong; 3992a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 39936217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek return getObjCGCAttrKind(Ty->getAs<PointerType>()->getPointeeType()); 3994a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 3995c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 3996c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 3997f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 39980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qualifiers::GCNone; 39994fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 4000b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 40014fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 40024fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 40036ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 40046ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 40056ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 4006770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 40071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// areCompatVectorTypes - Return true if the two specified vector types are 40086ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 40096ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 40106ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 4011467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified()); 40126ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 401361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 40146ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 40156ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 40164084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 40174084c306635b70f37029dca938444e6013f08684Steve Naroff// ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. 40184084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 40194084c306635b70f37029dca938444e6013f08684Steve Naroff 40204084c306635b70f37029dca938444e6013f08684Steve Naroff/// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the 40214084c306635b70f37029dca938444e6013f08684Steve Naroff/// inheritance hierarchy of 'rProto'. 40220fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanianbool ASTContext::ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, 40230fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian ObjCProtocolDecl *rProto) { 40244084c306635b70f37029dca938444e6013f08684Steve Naroff if (lProto == rProto) 402514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return true; 40264084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCProtocolDecl::protocol_iterator PI = rProto->protocol_begin(), 40274084c306635b70f37029dca938444e6013f08684Steve Naroff E = rProto->protocol_end(); PI != E; ++PI) 40284084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 40294084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40304084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40314084c306635b70f37029dca938444e6013f08684Steve Naroff} 403214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 40334084c306635b70f37029dca938444e6013f08684Steve Naroff/// QualifiedIdConformsQualifiedId - compare id<p,...> with id<p1,...> 40344084c306635b70f37029dca938444e6013f08684Steve Naroff/// return true if lhs's protocols conform to rhs's protocol; false 40354084c306635b70f37029dca938444e6013f08684Steve Naroff/// otherwise. 40364084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::QualifiedIdConformsQualifiedId(QualType lhs, QualType rhs) { 40374084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isObjCQualifiedIdType() && rhs->isObjCQualifiedIdType()) 40384084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(lhs, rhs, false); 40394084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40404084c306635b70f37029dca938444e6013f08684Steve Naroff} 40414084c306635b70f37029dca938444e6013f08684Steve Naroff 40424084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an 40434084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIDType. 40444084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::ObjCQualifiedIdTypesAreCompatible(QualType lhs, QualType rhs, 40454084c306635b70f37029dca938444e6013f08684Steve Naroff bool compare) { 40464084c306635b70f37029dca938444e6013f08684Steve Naroff // Allow id<P..> and an 'id' or void* type in all cases. 40471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isVoidPointerType() || 40484084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->isObjCIdType() || lhs->isObjCClassType()) 40494084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else if (rhs->isVoidPointerType() || 40514084c306635b70f37029dca938444e6013f08684Steve Naroff rhs->isObjCIdType() || rhs->isObjCClassType()) 40524084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40534084c306635b70f37029dca938444e6013f08684Steve Naroff 40544084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsQID = lhs->getAsObjCQualifiedIdType()) { 4055183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *rhsOPT = rhs->getAs<ObjCObjectPointerType>(); 40561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40574084c306635b70f37029dca938444e6013f08684Steve Naroff if (!rhsOPT) return false; 40581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40594084c306635b70f37029dca938444e6013f08684Steve Naroff if (rhsOPT->qual_empty()) { 40601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a unqualified interface pointer "NSString*", 40614084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 40624084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 40634084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 40644084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 40654084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 40664084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 40674084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 40680fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (!rhsID->ClassImplementsProtocol(*I, true)) 40694084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40704084c306635b70f37029dca938444e6013f08684Steve Naroff } 40714084c306635b70f37029dca938444e6013f08684Steve Naroff } 40724084c306635b70f37029dca938444e6013f08684Steve Naroff // If there are no qualifiers and no interface, we have an 'id'. 40734084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40744084c306635b70f37029dca938444e6013f08684Steve Naroff } 40751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 40764084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 40774084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 40784084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 40794084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 4080de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 4081de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // when comparing an id<P> on lhs with a static type on rhs, 4082de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // see if static class implements all of id's protocols, directly or 4083de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // through its super class and categories. 40844084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsOPT->qual_begin(), 40854084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsOPT->qual_end(); J != E; ++J) { 40864084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 40874084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 40884084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 40894084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 40908f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 40918f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 4092de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 40931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a qualified interface pointer "NSString<P>*", 40944084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 40954084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 40964084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 40974084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 40984084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 40994084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 41004084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 41010fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (rhsID->ClassImplementsProtocol(*I, true)) { 41024084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 41034084c306635b70f37029dca938444e6013f08684Steve Naroff break; 41044084c306635b70f37029dca938444e6013f08684Steve Naroff } 41054084c306635b70f37029dca938444e6013f08684Steve Naroff } 41064084c306635b70f37029dca938444e6013f08684Steve Naroff } 41074084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 4108de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return false; 4109de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 41101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4111de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return true; 4112de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 41131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41144084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsQID = rhs->getAsObjCQualifiedIdType(); 41154084c306635b70f37029dca938444e6013f08684Steve Naroff assert(rhsQID && "One of the LHS/RHS should be id<x>"); 41164084c306635b70f37029dca938444e6013f08684Steve Naroff 41171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCObjectPointerType *lhsOPT = 41184084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->getAsObjCInterfacePointerType()) { 41194084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhsOPT->qual_empty()) { 41204084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 41214084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *lhsID = lhsOPT->getInterfaceDecl()) { 41224084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = rhsQID->qual_begin(), 41234084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); I != E; ++I) { 41244084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 41254084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 41264084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 41270fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (lhsID->ClassImplementsProtocol(*I, true)) { 41284084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 41294084c306635b70f37029dca938444e6013f08684Steve Naroff break; 41304084c306635b70f37029dca938444e6013f08684Steve Naroff } 41314084c306635b70f37029dca938444e6013f08684Steve Naroff } 41324084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 41334084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 41344084c306635b70f37029dca938444e6013f08684Steve Naroff } 41354084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 41364084c306635b70f37029dca938444e6013f08684Steve Naroff } 41371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 41384084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsOPT->qual_begin(), 41394084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsOPT->qual_end(); I != E; ++I) { 41404084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 41414084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 41424084c306635b70f37029dca938444e6013f08684Steve Naroff 41434084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 41444084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 41454084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 41464084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsQID->qual_begin(), 41474084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); J != E; ++J) { 41484084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 41494084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 41504084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 41514084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 41524084c306635b70f37029dca938444e6013f08684Steve Naroff break; 41534084c306635b70f37029dca938444e6013f08684Steve Naroff } 41544084c306635b70f37029dca938444e6013f08684Steve Naroff } 41554084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 41564084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 41574084c306635b70f37029dca938444e6013f08684Steve Naroff } 41584084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 41594084c306635b70f37029dca938444e6013f08684Steve Naroff } 41604084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 41614084c306635b70f37029dca938444e6013f08684Steve Naroff} 41624084c306635b70f37029dca938444e6013f08684Steve Naroff 41634084c306635b70f37029dca938444e6013f08684Steve Naroff/// canAssignObjCInterfaces - Return true if the two interface types are 41644084c306635b70f37029dca938444e6013f08684Steve Naroff/// compatible for assignment from RHS to LHS. This handles validation of any 41654084c306635b70f37029dca938444e6013f08684Steve Naroff/// protocol qualifiers on the LHS or RHS. 41664084c306635b70f37029dca938444e6013f08684Steve Naroff/// 41674084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 41684084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *RHSOPT) { 41694084c306635b70f37029dca938444e6013f08684Steve Naroff // If either type represents the built-in 'id' or 'Class' types, return true. 41704084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCBuiltinType() || RHSOPT->isObjCBuiltinType()) 41714084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 41724084c306635b70f37029dca938444e6013f08684Steve Naroff 41734084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 41741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 41751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType(RHSOPT,0), 41764084c306635b70f37029dca938444e6013f08684Steve Naroff false); 41774084c306635b70f37029dca938444e6013f08684Steve Naroff 41784084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 41794084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 41804084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHS && RHS) // We have 2 user-defined types. 41814084c306635b70f37029dca938444e6013f08684Steve Naroff return canAssignObjCInterfaces(LHS, RHS); 41821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41834084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 418414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 418514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4186132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// canAssignObjCInterfacesInBlockPointer - This routine is specifically written 4187132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// for providing type-safty for objective-c pointers used to pass/return 4188132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// arguments in block literals. When passed as arguments, passing 'A*' where 4189132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// 'id' is expected is not OK. Passing 'Sub *" where 'Super *" is expected is 4190132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// not OK. For the return type, the opposite is not OK. 4191132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanianbool ASTContext::canAssignObjCInterfacesInBlockPointer( 4192132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4193132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian const ObjCObjectPointerType *RHSOPT) { 4194a98344869c278295f38e106583906377520079b8Fariborz Jahanian if (RHSOPT->isObjCBuiltinType() || LHSOPT->isObjCIdType()) 4195132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return true; 4196132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4197132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (LHSOPT->isObjCBuiltinType()) { 4198132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return RHSOPT->isObjCBuiltinType() || RHSOPT->isObjCQualifiedIdType(); 4199132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4200132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4201a98344869c278295f38e106583906377520079b8Fariborz Jahanian if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 4202132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 4203132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian QualType(RHSOPT,0), 4204132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian false); 4205132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4206132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4207132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4208132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (LHS && RHS) { // We have 2 user-defined types. 4209132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (LHS != RHS) { 4210132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 4211132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return false; 4212132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (RHS->getDecl()->isSuperClassOf(LHS->getDecl())) 4213132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return true; 4214132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4215132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian else 4216132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return true; 4217132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4218132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return false; 4219132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian} 4220132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4221e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// getIntersectionOfProtocols - This routine finds the intersection of set 4222e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// of protocols inherited from two distinct objective-c pointer objects. 4223e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// It is used to build composite qualifier list of the composite type of 4224e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// the conditional expression involving two objective-c pointer objects. 4225e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianstatic 4226e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid getIntersectionOfProtocols(ASTContext &Context, 4227e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4228e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *RHSOPT, 4229e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVectorImpl<ObjCProtocolDecl *> &IntersectionOfProtocols) { 4230e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4231e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4232e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4233e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4234e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> InheritedProtocolSet; 4235e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned LHSNumProtocols = LHS->getNumProtocols(); 4236e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (LHSNumProtocols > 0) 4237e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHS->qual_begin(), LHS->qual_end()); 4238e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 4239432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> LHSInheritedProtocols; 4240432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Context.CollectInheritedProtocols(LHS->getDecl(), LHSInheritedProtocols); 4241e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHSInheritedProtocols.begin(), 4242e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSInheritedProtocols.end()); 4243e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4244e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4245e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned RHSNumProtocols = RHS->getNumProtocols(); 4246e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (RHSNumProtocols > 0) { 4247cb421fa690da545b58a720abe5f1c49b166dbde7Dan Gohman ObjCProtocolDecl **RHSProtocols = 4248cb421fa690da545b58a720abe5f1c49b166dbde7Dan Gohman const_cast<ObjCProtocolDecl **>(RHS->qual_begin()); 4249e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (unsigned i = 0; i < RHSNumProtocols; ++i) 4250e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (InheritedProtocolSet.count(RHSProtocols[i])) 4251e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.push_back(RHSProtocols[i]); 4252e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4253e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 4254432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> RHSInheritedProtocols; 4255e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Context.CollectInheritedProtocols(RHS->getDecl(), RHSInheritedProtocols); 4256432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian for (llvm::SmallPtrSet<ObjCProtocolDecl*,8>::iterator I = 4257432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian RHSInheritedProtocols.begin(), 4258432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian E = RHSInheritedProtocols.end(); I != E; ++I) 4259432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian if (InheritedProtocolSet.count((*I))) 4260432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian IntersectionOfProtocols.push_back((*I)); 4261e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4262e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 4263e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4264db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// areCommonBaseCompatible - Returns common base class of the two classes if 4265db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// one found. Note that this is O'2 algorithm. But it will be called as the 4266db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// last type comparison in a ?-exp of ObjC pointer types before a 4267db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// warning is issued. So, its invokation is extremely rare. 4268db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz JahanianQualType ASTContext::areCommonBaseCompatible( 4269db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4270db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCObjectPointerType *RHSOPT) { 4271db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4272db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4273db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian if (!LHS || !RHS) 4274db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4275db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4276db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian while (const ObjCInterfaceDecl *LHSIDecl = LHS->getDecl()->getSuperClass()) { 4277db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian QualType LHSTy = getObjCInterfaceType(LHSIDecl); 4278db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian LHS = LHSTy->getAs<ObjCInterfaceType>(); 4279e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (canAssignObjCInterfaces(LHS, RHS)) { 4280e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVector<ObjCProtocolDecl *, 8> IntersectionOfProtocols; 4281e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian getIntersectionOfProtocols(*this, 4282e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSOPT, RHSOPT, IntersectionOfProtocols); 4283e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (IntersectionOfProtocols.empty()) 4284e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSTy = getObjCObjectPointerType(LHSTy); 4285e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else 4286e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSTy = getObjCObjectPointerType(LHSTy, &IntersectionOfProtocols[0], 4287e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.size()); 4288e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return LHSTy; 4289e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4290db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian } 4291db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4292db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4293db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian} 4294db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 42953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 42963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 42976ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 42986ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 42996ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 43006ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 43011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43026ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 43036ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 4304c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (LHS->getNumProtocols() == 0) 43056ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 43061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43076ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 43086ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 4309c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (RHS->getNumProtocols() == 0) 43106ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 43111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4312c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator LHSPI = LHS->qual_begin(), 4313c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff LHSPE = LHS->qual_end(); 431491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 431591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 431691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 431791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 431891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 4319c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator RHSPI = RHS->qual_begin(), 43204084c306635b70f37029dca938444e6013f08684Steve Naroff RHSPE = RHS->qual_end(); 43218f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff RHSPI != RHSPE; RHSPI++) { 43228f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 432391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 43248f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 43258f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 432691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 432791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 432891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 432991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 433091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 433191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 433291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 43336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 43346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 4335389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 4336389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 4337183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *LHSOPT = LHS->getAs<ObjCObjectPointerType>(); 4338183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *RHSOPT = RHS->getAs<ObjCObjectPointerType>(); 43391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 434014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (!LHSOPT || !RHSOPT) 4341389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 434214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 434314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 434414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff canAssignObjCInterfaces(RHSOPT, LHSOPT); 4345389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 4346389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 43471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 4348ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 43491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C99 6.2.7p1: Two types have compatible types if their types are the 4350ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 43513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 43520e709abafbd939326850501f795cc7a92c88a354Douglas Gregor if (getLangOptions().CPlusPlus) 43530e709abafbd939326850501f795cc7a92c88a354Douglas Gregor return hasSameType(LHS, RHS); 43540e709abafbd939326850501f795cc7a92c88a354Douglas Gregor 43553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 43563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 43573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4358132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanianbool ASTContext::typesAreBlockPointerCompatible(QualType LHS, QualType RHS) { 4359132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return !mergeTypes(LHS, RHS, true).isNull(); 4360132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian} 4361132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4362132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz JahanianQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs, 4363132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian bool OfBlockPointer) { 4364183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *lbase = lhs->getAs<FunctionType>(); 4365183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *rbase = rhs->getAs<FunctionType>(); 436672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 436772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 43683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 43693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 43703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 4372132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian QualType retType; 4373132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (OfBlockPointer) 4374132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian retType = mergeTypes(rbase->getResultType(), lbase->getResultType(), true); 4375132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian else 4376132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 43773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 43786de8b62ae42818c0bd8878b0d1900e17c7c43e0eFariborz Jahanian if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 437961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 43806de8b62ae42818c0bd8878b0d1900e17c7c43e0eFariborz Jahanian if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 438161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 43826dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump // FIXME: double check this 4383425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // FIXME: should we error if lbase->getRegParmAttr() != 0 && 4384425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // rbase->getRegParmAttr() != 0 && 4385425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // lbase->getRegParmAttr() != rbase->getRegParmAttr()? 4386264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo lbaseInfo = lbase->getExtInfo(); 4387264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo rbaseInfo = rbase->getExtInfo(); 4388425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola unsigned RegParm = lbaseInfo.getRegParm() == 0 ? rbaseInfo.getRegParm() : 4389425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola lbaseInfo.getRegParm(); 4390264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola bool NoReturn = lbaseInfo.getNoReturn() || rbaseInfo.getNoReturn(); 4391425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola if (NoReturn != lbaseInfo.getNoReturn() || 4392425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola RegParm != lbaseInfo.getRegParm()) 43932455636163fdd18581d7fdae816433f886d88213Mike Stump allLTypes = false; 4394425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola if (NoReturn != rbaseInfo.getNoReturn() || 4395425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola RegParm != rbaseInfo.getRegParm()) 43962455636163fdd18581d7fdae816433f886d88213Mike Stump allRTypes = false; 4397264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola CallingConv lcc = lbaseInfo.getCC(); 4398264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola CallingConv rcc = rbaseInfo.getCC(); 4399ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor // Compatible functions must have compatible calling conventions 440004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!isSameCallConv(lcc, rcc)) 4401ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return QualType(); 44021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 4404465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 4405465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 44063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 44073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 44083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 44103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 44113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 44123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 44143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 44153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 44163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44177fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 44187fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 44197fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 44203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 44213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 44223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 44233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 44243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 4425132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian QualType argtype = mergeTypes(largtype, rargtype, OfBlockPointer); 44263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 44273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 442861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 442961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 443061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 443161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 44323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 44333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 44343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 44353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 44362455636163fdd18581d7fdae816433f886d88213Mike Stump lproto->isVariadic(), lproto->getTypeQuals(), 4437264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola false, false, 0, 0, 4438425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo(NoReturn, RegParm, lcc)); 44393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 44403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 44423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 44433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 444472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 44453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 4446465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 44473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 44483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 44493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 44503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 44513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 44523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 44533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 44543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 44553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 4456b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor 4457b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor // Look at the promotion type of enum types, since that is the type used 4458b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor // to pass enum values. 4459b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor if (const EnumType *Enum = argTy->getAs<EnumType>()) 4460b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor argTy = Enum->getDecl()->getPromotionType(); 4461b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor 44623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 44633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 44643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 44653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 44663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 44683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 44693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 44702d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getNumArgs(), proto->isVariadic(), 4471264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola proto->getTypeQuals(), 4472264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola false, false, 0, 0, 4473425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo(NoReturn, RegParm, lcc)); 44743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 44753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 44773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 4478425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo Info(NoReturn, RegParm, lcc); 4479264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return getFunctionNoProtoType(retType, Info); 44803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 44813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4482132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz JahanianQualType ASTContext::mergeTypes(QualType LHS, QualType RHS, 4483132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian bool OfBlockPointer) { 448443d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 448543d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 448643d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 44877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 44887c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 44890e709abafbd939326850501f795cc7a92c88a354Douglas Gregor assert(!LHS->getAs<ReferenceType>() && "LHS is a reference type?"); 44900e709abafbd939326850501f795cc7a92c88a354Douglas Gregor assert(!RHS->getAs<ReferenceType>() && "RHS is a reference type?"); 44910e709abafbd939326850501f795cc7a92c88a354Douglas Gregor 44923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 44933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 44943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4495f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 44963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 44973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 44983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the qualifiers are different, the types aren't compatible... mostly. 4500a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor Qualifiers LQuals = LHSCan.getLocalQualifiers(); 4501a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor Qualifiers RQuals = RHSCan.getLocalQualifiers(); 45020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals != RQuals) { 45030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If any of these qualifiers are different, we have a type 45040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // mismatch. 45050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || 45060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall LQuals.getAddressSpace() != RQuals.getAddressSpace()) 45070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 45080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 45090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Exactly one GC qualifier difference is allowed: __strong is 45100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // okay if the other type has no GC qualifier but is an Objective 45110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // C object pointer (i.e. implicitly strong by default). We fix 45120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // this by pretending that the unqualified type was actually 45130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // qualified __strong. 45140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); 45150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); 45160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements"); 45170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 45180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) 45190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 45200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 45210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Strong && RHSCan->isObjCObjectPointerType()) { 45220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(LHS, getObjCGCQualType(RHS, Qualifiers::Strong)); 45230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 45240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_R == Qualifiers::Strong && LHSCan->isObjCObjectPointerType()) { 45250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(getObjCGCQualType(LHS, Qualifiers::Strong), RHS); 45260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 45273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 45280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 45290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 45300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Okay, qualifiers are equal. 45313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4532852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 4533852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 4534f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 45351adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 45361adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 45371adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 45381adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 45394c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 45404c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 4541a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 4542a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 4543a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 4544a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 45451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4546213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 4547213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 4548213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 45491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 45504e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 45514e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 45521adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 45531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // a signed integer type, or an unsigned integer type. 4554842aef8d942a880eeb9535d40de31a86838264cbJohn McCall // Compatibility is based on the underlying type, not the promotion 4555842aef8d942a880eeb9535d40de31a86838264cbJohn McCall // type. 4556183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = LHS->getAs<EnumType>()) { 45573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 45583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 4559bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 4560183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = RHS->getAs<EnumType>()) { 45613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 45623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 4563bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 45641adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 45653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 4566ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 45673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45684a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 45691adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 457072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 457172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 4572ad5e73887052193afda72db8efcb812bd083a4a8John McCall#define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base) case Type::Class: 457372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 457472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 457572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 457672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 457772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 457872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 45797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 45807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 458172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 458272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 458372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 458472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 458572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 458672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 458772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 458872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 458972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 459072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 459172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 45921adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 45933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 45943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 45956217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<PointerType>()->getPointeeType(); 45966217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<PointerType>()->getPointeeType(); 45973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 45983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 459907d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 460061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 460107d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 460261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 46033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 46043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 4605c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 4606c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 4607c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 46086217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<BlockPointerType>()->getPointeeType(); 46096217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<BlockPointerType>()->getPointeeType(); 4610132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian QualType ResultType = mergeTypes(LHSPointee, RHSPointee, OfBlockPointer); 4611c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 4612c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 4613c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 4614c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 4615c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 4616c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 4617c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 46181adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 46193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 46203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 46213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 46223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 46233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 46243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 46253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 46263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 46273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 46283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 462961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 463061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 463161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 463261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 46333bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 46343bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 46353bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 46363bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 46373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 46383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 463961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 464061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 464161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 464261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 46433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 46443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 46453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 46463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 46473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 46483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 46493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 46503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 46513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 46523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 46533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 46543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 46553bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 46563bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 46577e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 46587e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 46593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 46601adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 4661132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return mergeFunctionTypes(LHS, RHS, OfBlockPointer); 466272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 466372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 46643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 46651adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 46663cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 46673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 466864cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 466964cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 467064cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 46713cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 46725a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 46731c471f3e1c0ec8cbc82447bb35908dfc55463e46John McCall if (areCompatVectorTypes(LHSCan->getAs<VectorType>(), 46741c471f3e1c0ec8cbc82447bb35908dfc55463e46John McCall RHSCan->getAs<VectorType>())) 46753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 467661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 467761490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 46785fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 46795a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 46805a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 4681183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* LHSIface = LHS->getAs<ObjCInterfaceType>(); 4682183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* RHSIface = RHS->getAs<ObjCInterfaceType>(); 46835fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 46845fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 46855fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 46865fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 46873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 468861490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 468914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff case Type::ObjCObjectPointer: { 4690132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (OfBlockPointer) { 4691132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (canAssignObjCInterfacesInBlockPointer( 4692132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian LHS->getAs<ObjCObjectPointerType>(), 4693132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian RHS->getAs<ObjCObjectPointerType>())) 4694132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return LHS; 4695132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return QualType(); 4696132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4697183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (canAssignObjCInterfaces(LHS->getAs<ObjCObjectPointerType>(), 4698183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall RHS->getAs<ObjCObjectPointerType>())) 469914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return LHS; 470014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4701bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 4702132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4703ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 470472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 470572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 4706ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 47077192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 47085426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 4709ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 4710ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 471188054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 4712ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 4713632d772a78db7e2cd9b36f8a22aee49d44486fbfSebastian Redl if (T->isBooleanType()) 4714ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 4715842aef8d942a880eeb9535d40de31a86838264cbJohn McCall if (EnumType *ET = dyn_cast<EnumType>(T)) 471629a7f3342c3c6dd15d914c61ae22246c36d51ce7Eli Friedman T = ET->getDecl()->getIntegerType(); 4717f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 4718ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 4719ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4720ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 4721ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 4722ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 47236a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 47246a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // Turn <4 x signed int> -> <4 x unsigned int> 47256a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const VectorType *VTy = T->getAs<VectorType>()) 47266a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner return getVectorType(getCorrespondingUnsignedType(VTy->getElementType()), 472782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VTy->getNumElements(), VTy->isAltiVec(), VTy->isPixel()); 47286a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 47296a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // For enums, we return the unsigned version of the base type. 47306a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const EnumType *ETy = T->getAs<EnumType>()) 4731ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 47326a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 47336a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner const BuiltinType *BTy = T->getAs<BuiltinType>(); 47346a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner assert(BTy && "Unexpected signed integer type"); 4735ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 4736ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 4737ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 4738ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 4739ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 4740ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 4741ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 4742ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 4743ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 4744ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 4745ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 4746ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 47472df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 47482df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 4749ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 4750ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 4751ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 4752ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 4753ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4754ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 47552cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 47562cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 47572cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 475886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 475986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 476086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 476186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 476286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 476386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 476486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 476586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 47661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 476786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 476886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 476986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 477086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 477186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 47721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 477386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 477486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 477586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 477686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 47771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: Done = true; --Str; break; 477886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 477986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 478086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 478186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 478286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 478386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 478486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 478586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 478686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 478786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 478886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 478986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 479086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 479186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 479286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 479386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 479486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 479586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 47961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 479786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 479886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 479986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 480086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 480186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 480286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 480386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 480486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 480586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 480686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 480786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 480886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 480986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 481086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 481186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 481286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 481386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 481486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 481586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 481686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 481786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 481886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 481986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 482086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 482186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 482286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 482386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 482486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 482586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 482686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 482786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 482886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 482986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 483086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 483186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 483286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 483386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 483486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 483586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 483686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 483786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 483886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 483986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 484086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 484186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 484286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 484386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 484486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 484586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 484686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 484786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 484886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 484986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 485086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 485186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 485286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 485386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 485486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 485586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 485686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 485786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 485886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 485986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 486086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 486186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 486286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 486386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 486486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 486586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 486686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 486786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 486886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 486986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 487086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 487186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 487286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 487386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 487486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 487586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 487686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 487786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 487886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 487986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 48801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 488186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 48821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 488386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 488482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson // FIXME: Don't know what to do about AltiVec. 488582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Type = Context.getVectorType(ElementType, NumElements, false, false); 488686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 488786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4888d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor case 'X': { 4889d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 4890d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor Type = Context.getComplexType(ElementType); 4891d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor break; 4892d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor } 48939a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'P': 4894c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor Type = Context.getFILEType(); 4895c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor if (Type.isNull()) { 4896f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_stdio; 489786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 489886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4899fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 49009a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'J': 4901f711c41dd9412a8182793259d355c4f6979ed5edMike Stump if (Signed) 4902782fa308a765aeac2acb39c4e697c937ec21185bMike Stump Type = Context.getsigjmp_bufType(); 4903f711c41dd9412a8182793259d355c4f6979ed5edMike Stump else 4904f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Type = Context.getjmp_bufType(); 4905f711c41dd9412a8182793259d355c4f6979ed5edMike Stump 4906fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump if (Type.isNull()) { 4907f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_setjmp; 4908fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump return QualType(); 4909fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump } 4910fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 4911782fa308a765aeac2acb39c4e697c937ec21185bMike Stump } 49121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 491386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 491486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 49151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 491686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 491786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 4918187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall switch (char c = *Str++) { 491986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 492086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 492186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 4922187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall { 4923187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall // Both pointers and references can have their pointee types 4924187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall // qualified with an address space. 4925187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall char *End; 4926187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall unsigned AddrSpace = strtoul(Str, &End, 10); 4927187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall if (End != Str && AddrSpace != 0) { 4928187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall Type = Context.getAddrSpaceQualType(Type, AddrSpace); 4929187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall Str = End; 4930187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall } 4931187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall } 4932187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall if (c == '*') 4933187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall Type = Context.getPointerType(Type); 4934187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall else 4935187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall Type = Context.getLValueReferenceType(Type); 493686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 493786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 493886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 49390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Type = Type.withConst(); 494086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 4941013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian case 'D': 4942013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian Type = Context.getVolatileType(Type); 4943013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian break; 494486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 494586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 49461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 494786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 494886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 494986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 495086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 495186df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 495286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 495386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 49541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 495586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 49561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 495786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 495886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 495986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 496086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 496186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 496286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 496386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 496486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 496586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 496686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 496786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 496886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 49691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 497086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 497186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 497286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 497386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 497486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 497586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 497686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 497786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 497886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 4979ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor 4980ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor // FIXME: Should we create noreturn types? 498186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 4982ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor TypeStr[0] == '.', 0, false, false, 0, 0, 4983264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo()); 498486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 4985a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4986a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType 4987a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanASTContext::UsualArithmeticConversionsType(QualType lhs, QualType rhs) { 4988a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Perform the usual unary conversions. We do this early so that 4989a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // integral promotions to "int" can allow us to exit early, in the 4990a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // lhs == rhs check. Also, for conversion purposes, we ignore any 4991a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // qualifiers. For example, "const float" and "float" are 4992a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // equivalent. 4993a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isPromotableIntegerType()) 4994a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getPromotedIntegerType(lhs); 4995a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4996a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = lhs.getUnqualifiedType(); 4997a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isPromotableIntegerType()) 4998a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getPromotedIntegerType(rhs); 4999a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 5000a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = rhs.getUnqualifiedType(); 5001a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 5002a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If both types are identical, no conversion is needed. 5003a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs == rhs) 5004a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 50051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5006a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If either side is a non-arithmetic type (e.g. a pointer), we are done. 5007a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The caller can deal with this (e.g. pointer + int). 5008a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (!lhs->isArithmeticType() || !rhs->isArithmeticType()) 5009a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 50101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 50111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // At this point, we have two different arithmetic types. 50121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5013a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle complex types first (C99 6.3.1.8p1). 5014a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexType() || rhs->isComplexType()) { 5015a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the complex type. 50161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (rhs->isIntegerType() || rhs->isComplexIntegerType()) { 5017a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 5018a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5019a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 50201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isIntegerType() || lhs->isComplexIntegerType()) { 5021a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 5022a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5023a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5024a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // This handles complex/complex, complex/float, or float/complex. 50251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // When both operands are complex, the shorter operand is converted to the 50261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type of the longer, and that is the type of the result. This corresponds 50271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // to what is done when combining two real floating-point operands. 50281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The fun begins when size promotion occur across type domains. 5029a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // From H&S 6.3.4: When one operand is complex and the other is a real 50301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // floating-point type, the less precise type is converted, within it's 5031a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // real or complex domain, to the precision of the other type. For example, 50321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // when combining a "long double" with a "double _Complex", the 5033a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // "double _Complex" is promoted to "long double _Complex". 5034a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 50351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 50361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (result > 0) { // The left side is bigger, convert rhs. 5037a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getFloatingTypeOfSizeWithinDomain(lhs, rhs); 50381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (result < 0) { // The right side is bigger, convert lhs. 5039a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getFloatingTypeOfSizeWithinDomain(rhs, lhs); 50401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 5041a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // At this point, lhs and rhs have the same rank/size. Now, make sure the 5042a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // domains match. This is a requirement for our implementation, C99 5043a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // does not require this promotion. 5044a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs != rhs) { // Domains don't match, we have complex/float mix. 5045a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType()) { // handle "double, _Complex double". 5046a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5047a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { // handle "_Complex double, double". 5048a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5049a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5050a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5051a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // The domain/size match exactly. 5052a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5053a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Now handle "real" floating types (i.e. float, double, long double). 5054a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType() || rhs->isRealFloatingType()) { 5055a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the real floating type. 5056a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isIntegerType()) { 5057a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the lhs floating point type. 5058a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5059a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5060a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isComplexIntegerType()) { 5061a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the complex floating point type. 5062a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(lhs); 5063a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5064a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isIntegerType()) { 5065a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the rhs floating point type. 5066a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5067a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 50681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isComplexIntegerType()) { 5069a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the complex floating point type. 5070a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(rhs); 5071a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5072a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // We have two real floating types, float/complex combos were handled above. 5073a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Convert the smaller operand to the bigger result. 5074a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 5075a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (result > 0) // convert the rhs 5076a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5077a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(result < 0 && "illegal float comparison"); 5078a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; // convert the lhs 5079a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5080a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexIntegerType() || rhs->isComplexIntegerType()) { 5081a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle GCC complex int extension. 5082a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *lhsComplexInt = lhs->getAsComplexIntegerType(); 5083a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *rhsComplexInt = rhs->getAsComplexIntegerType(); 5084a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 5085a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsComplexInt && rhsComplexInt) { 50861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (getIntegerTypeOrder(lhsComplexInt->getElementType(), 5087a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsComplexInt->getElementType()) >= 0) 5088a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // convert the rhs 5089a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5090a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (lhsComplexInt && rhs->isIntegerType()) { 5091a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 5092a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5093a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (rhsComplexInt && lhs->isIntegerType()) { 5094a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 5095a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5096a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5097a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5098a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Finally, we have two differing integer types. 5099a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The rules for this case are in C99 6.3.1.8 5100a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int compare = getIntegerTypeOrder(lhs, rhs); 5101a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman bool lhsSigned = lhs->isSignedIntegerType(), 5102a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsSigned = rhs->isSignedIntegerType(); 5103a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman QualType destType; 5104a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsSigned == rhsSigned) { 5105a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Same signedness; use the higher-ranked type 5106a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = compare >= 0 ? lhs : rhs; 5107a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (compare != (lhsSigned ? 1 : -1)) { 5108a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The unsigned type has greater than or equal rank to the 5109a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // signed type, so use the unsigned type 5110a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? rhs : lhs; 5111a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (getIntWidth(lhs) != getIntWidth(rhs)) { 5112a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The two types are different widths; if we are here, that 5113a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // means the signed type is larger than the unsigned type, so 5114a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // use the signed type. 5115a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? lhs : rhs; 5116a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { 5117a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The signed type is higher-ranked than the unsigned type, 5118a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // but isn't actually any bigger (like unsigned int and long 5119a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // on most 32-bit systems). Use the unsigned type corresponding 5120a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // to the signed type. 5121a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = getCorrespondingUnsignedType(lhsSigned ? lhs : rhs); 5122a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5123a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return destType; 5124a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 5125