ASTContext.cpp revision 4a2023f5014e82389d5980d307b89c545dbbac81
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ASTContext.cpp - Context to hold long-lived AST nodes ------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the ASTContext interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 15bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck#include "clang/AST/CharUnits.h" 1649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis#include "clang/AST/DeclCXX.h" 17980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 18aaba5e346dffdbad5d1c42765a89e4a7afb0da67Douglas Gregor#include "clang/AST/DeclTemplate.h" 19b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis#include "clang/AST/TypeLoc.h" 20e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 212cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor#include "clang/AST/ExternalASTSource.h" 2219cc4abea06a9b49e0e16a50d335c064cd723572Anders Carlsson#include "clang/AST/RecordLayout.h" 231b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner#include "clang/Basic/Builtins.h" 24a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner#include "clang/Basic/SourceManager.h" 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 26f5942a44880be26878592eb052b737579349411eBenjamin Kramer#include "llvm/ADT/SmallString.h" 2785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 286fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.h" 29f5942a44880be26878592eb052b737579349411eBenjamin Kramer#include "llvm/Support/raw_ostream.h" 3029445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson#include "RecordLayoutBuilder.h" 3129445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3861710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 39444be7366d0a1e172c0290a1ea54c1cb16b5947cDaniel Dunbar const TargetInfo &t, 40e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 411b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner Builtin::Context &builtins, 421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool FreeMem, unsigned size_reserve) : 431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 44782fa308a765aeac2acb39c4e697c937ec21185bMike Stump ObjCFastEnumerationStateTypeDecl(0), FILEDecl(0), jmp_bufDecl(0), 45083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump sigjmp_bufDecl(0), BlockDescriptorType(0), BlockDescriptorExtendedType(0), 46c6fbbedb3e90ff2f04828c36fd839e01468679f5Douglas Gregor SourceMgr(SM), LangOpts(LOpts), FreeMemory(FreeMem), Target(t), 472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Idents(idents), Selectors(sels), 480c01d18094100db92d38daa923c95661512db203John McCall BuiltinInfo(builtins), ExternalSource(0), PrintingPolicy(LOpts), 490c01d18094100db92d38daa923c95661512db203John McCall LastSDM(0, 0) { 500f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCIdRedefinitionType = QualType(); 510f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCClassRedefinitionType = QualType(); 52369a3bd9979cf529eed529aa037de713c213e47dFariborz Jahanian ObjCSelRedefinitionType = QualType(); 531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (size_reserve > 0) Types.reserve(size_reserve); 54e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 5514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff InitBuiltinTypes(); 56e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 57e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 593478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek // Release the DenseMaps associated with DeclContext objects. 603478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek // FIXME: Is this the ideal solution? 613478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek ReleaseDeclContextMaps(); 627d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 637d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor // Release all of the memory associated with overridden C++ methods. 647d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor for (llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::iterator 657d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor OM = OverriddenMethods.begin(), OMEnd = OverriddenMethods.end(); 667d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor OM != OMEnd; ++OM) 677d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor OM->second.Destroy(); 683478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek 69bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek if (FreeMemory) { 70bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Deallocate all the types. 71bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek while (!Types.empty()) { 72bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek Types.back()->Destroy(*this); 73bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek Types.pop_back(); 74bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 75b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 76bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek for (llvm::FoldingSet<ExtQuals>::iterator 77bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek I = ExtQualNodes.begin(), E = ExtQualNodes.end(); I != E; ) { 78bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Increment in loop to prevent using deallocated memory. 790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Deallocate(&*I++); 80bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 82503524acc73f2f8280080ca0d200377406001b65Ted Kremenek for (llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 83503524acc73f2f8280080ca0d200377406001b65Ted Kremenek I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); I != E; ) { 84503524acc73f2f8280080ca0d200377406001b65Ted Kremenek // Increment in loop to prevent using deallocated memory. 85503524acc73f2f8280080ca0d200377406001b65Ted Kremenek if (ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second)) 86503524acc73f2f8280080ca0d200377406001b65Ted Kremenek R->Destroy(*this); 87503524acc73f2f8280080ca0d200377406001b65Ted Kremenek } 88b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 89503524acc73f2f8280080ca0d200377406001b65Ted Kremenek for (llvm::DenseMap<const ObjCContainerDecl*, 90503524acc73f2f8280080ca0d200377406001b65Ted Kremenek const ASTRecordLayout*>::iterator 91503524acc73f2f8280080ca0d200377406001b65Ted Kremenek I = ObjCLayouts.begin(), E = ObjCLayouts.end(); I != E; ) { 92503524acc73f2f8280080ca0d200377406001b65Ted Kremenek // Increment in loop to prevent using deallocated memory. 93503524acc73f2f8280080ca0d200377406001b65Ted Kremenek if (ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second)) 94503524acc73f2f8280080ca0d200377406001b65Ted Kremenek R->Destroy(*this); 95503524acc73f2f8280080ca0d200377406001b65Ted Kremenek } 96b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 97b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 98ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 991ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 1001ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 1011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNSEnd = NestedNameSpecifiers.end(); 102bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek NNS != NNSEnd; ) { 103bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Increment in loop to prevent using deallocated memory. 1041ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 105bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 106ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 107ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 108ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 109ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 110b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 1142cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 1152cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 1162cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 1172cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 1217c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 122dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 1231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump#define TYPE(Name, Parent) 0, 124dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 125dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 126dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 127dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 128c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 131dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 134dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 135dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 136dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 137dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 138dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 139dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 140dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 141dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 142dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 1431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 144dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1452cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1462cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 1472cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 1482cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 1492cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 153e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallvoid ASTContext::InitBuiltinType(CanQualType &R, BuiltinType::Kind K) { 1546b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BuiltinType *Ty = new (*this, TypeAlignment) BuiltinType(K); 155e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall R = CanQualType::CreateUnsafe(QualType(Ty, 0)); 1566b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Types.push_back(Ty); 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 16815b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 19064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1912df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 1922df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 1932df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 1942df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 1953a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 1963a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 1973a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 1983a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 19964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 200f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 201f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char16Ty, BuiltinType::Char16); 202f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 203f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16Ty = getFromTargetType(Target.getChar16Type()); 204f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 205f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 206f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char32Ty, BuiltinType::Char32); 207f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 208f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32Ty = getFromTargetType(Target.getChar32Type()); 209f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2108e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 211898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 212898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 213898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 214898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 215898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 216898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 217898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 218898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 2198e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Placeholder type for C++0x auto declarations whose real type has 221e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 222e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 2231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2288e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2297e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 2301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 231de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // "Builtin" typedefs set by Sema::ActOnTranslationUnitScope(). 232de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = QualType(); 233de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = QualType(); 23413dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian ObjCSelTypedefType = QualType(); 2351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23613dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian // Builtin types for 'id', 'Class', and 'SEL'. 237de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); 238de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); 23913dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian InitBuiltinType(ObjCBuiltinSelTy, BuiltinType::ObjCSel); 24014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 241a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 2421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 24433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2456e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2466e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2476e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 250251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorMemberSpecializationInfo * 251663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas GregorASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) { 2527caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Var->isStaticDataMember() && "Not a static data member"); 253663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor llvm::DenseMap<const VarDecl *, MemberSpecializationInfo *>::iterator Pos 2547caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor = InstantiatedFromStaticDataMember.find(Var); 2557caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Pos == InstantiatedFromStaticDataMember.end()) 2567caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return 0; 2571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2587caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return Pos->second; 2597caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2607caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 262251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl, 263251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor TemplateSpecializationKind TSK) { 2647caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Inst->isStaticDataMember() && "Not a static data member"); 2657caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Tmpl->isStaticDataMember() && "Not a static data member"); 2667caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(!InstantiatedFromStaticDataMember[Inst] && 2677caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor "Already noted what static data member was instantiated from"); 268251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor InstantiatedFromStaticDataMember[Inst] 269251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor = new (*this) MemberSpecializationInfo(Tmpl, TSK); 2707caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 2717caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 2727ba107a1863ddfa1664555854f0d7bdb3c491c92John McCallNamedDecl * 273ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::getInstantiatedFromUsingDecl(UsingDecl *UUD) { 2747ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall llvm::DenseMap<UsingDecl *, NamedDecl *>::const_iterator Pos 275ed97649e9574b9d854fa4d6109c9333ae0993554John McCall = InstantiatedFromUsingDecl.find(UUD); 276ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (Pos == InstantiatedFromUsingDecl.end()) 2770d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return 0; 2781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2790d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return Pos->second; 2800d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 2810d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 2820d8df780aef1acda5962347a32591efc629b6748Anders Carlssonvoid 283ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::setInstantiatedFromUsingDecl(UsingDecl *Inst, NamedDecl *Pattern) { 284ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert((isa<UsingDecl>(Pattern) || 285ed97649e9574b9d854fa4d6109c9333ae0993554John McCall isa<UnresolvedUsingValueDecl>(Pattern) || 286ed97649e9574b9d854fa4d6109c9333ae0993554John McCall isa<UnresolvedUsingTypenameDecl>(Pattern)) && 287ed97649e9574b9d854fa4d6109c9333ae0993554John McCall "pattern decl is not a using decl"); 288ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert(!InstantiatedFromUsingDecl[Inst] && "pattern already exists"); 289ed97649e9574b9d854fa4d6109c9333ae0993554John McCall InstantiatedFromUsingDecl[Inst] = Pattern; 290ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 291ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 292ed97649e9574b9d854fa4d6109c9333ae0993554John McCallUsingShadowDecl * 293ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::getInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst) { 294ed97649e9574b9d854fa4d6109c9333ae0993554John McCall llvm::DenseMap<UsingShadowDecl*, UsingShadowDecl*>::const_iterator Pos 295ed97649e9574b9d854fa4d6109c9333ae0993554John McCall = InstantiatedFromUsingShadowDecl.find(Inst); 296ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (Pos == InstantiatedFromUsingShadowDecl.end()) 297ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return 0; 298ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 299ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return Pos->second; 300ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 301ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 302ed97649e9574b9d854fa4d6109c9333ae0993554John McCallvoid 303ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::setInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst, 304ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UsingShadowDecl *Pattern) { 305ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert(!InstantiatedFromUsingShadowDecl[Inst] && "pattern already exists"); 306ed97649e9574b9d854fa4d6109c9333ae0993554John McCall InstantiatedFromUsingShadowDecl[Inst] = Pattern; 3070d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 3080d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 309d8b285fee4471f393da8ee30f552ceacdc362afaAnders CarlssonFieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { 310d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos 311d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson = InstantiatedFromUnnamedFieldDecl.find(Field); 312d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson if (Pos == InstantiatedFromUnnamedFieldDecl.end()) 313d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return 0; 3141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 315d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return Pos->second; 316d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 317d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 318d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlssonvoid ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, 319d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson FieldDecl *Tmpl) { 320d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed"); 321d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Tmpl->getDeclName() && "Template field decl is not unnamed"); 322d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!InstantiatedFromUnnamedFieldDecl[Inst] && 323d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson "Already noted what unnamed field was instantiated from"); 3241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 325d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; 326d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 327d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 3287d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas GregorCXXMethodVector::iterator CXXMethodVector::begin() const { 3297d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor if ((Storage & 0x01) == 0) 3307d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return reinterpret_cast<iterator>(&Storage); 3317d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3327d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor vector_type *Vec = reinterpret_cast<vector_type *>(Storage & ~0x01); 3337d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return &Vec->front(); 3347d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor} 3357d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3367d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas GregorCXXMethodVector::iterator CXXMethodVector::end() const { 3377d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor if ((Storage & 0x01) == 0) { 3387d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor if (Storage == 0) 3397d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return reinterpret_cast<iterator>(&Storage); 3407d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3417d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return reinterpret_cast<iterator>(&Storage) + 1; 3427d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor } 3437d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3447d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor vector_type *Vec = reinterpret_cast<vector_type *>(Storage & ~0x01); 3457d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return &Vec->front() + Vec->size(); 3467d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor} 3477d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3487d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregorvoid CXXMethodVector::push_back(const CXXMethodDecl *Method) { 3497d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor if (Storage == 0) { 3507d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor // 0 -> 1 element. 3517d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor Storage = reinterpret_cast<uintptr_t>(Method); 3527d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return; 3537d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor } 3547d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3557d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor vector_type *Vec; 3567d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor if ((Storage & 0x01) == 0) { 3577d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor // 1 -> 2 elements. Allocate a new vector and push the element into that 3587d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor // vector. 3597d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor Vec = new vector_type; 3607d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor Vec->push_back(reinterpret_cast<const CXXMethodDecl *>(Storage)); 3617d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor Storage = reinterpret_cast<uintptr_t>(Vec) | 0x01; 3627d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor } else 3637d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor Vec = reinterpret_cast<vector_type *>(Storage & ~0x01); 3647d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3657d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor // Add the new method to the vector. 3667d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor Vec->push_back(Method); 3677d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor} 3687d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3697d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregorvoid CXXMethodVector::Destroy() { 3707d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor if (Storage & 0x01) 3717d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor delete reinterpret_cast<vector_type *>(Storage & ~0x01); 3727d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3737d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor Storage = 0; 3747d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor} 3757d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3767d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3777d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas GregorASTContext::overridden_cxx_method_iterator 3787d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas GregorASTContext::overridden_methods_begin(const CXXMethodDecl *Method) const { 3797d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos 3807d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor = OverriddenMethods.find(Method); 3817d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor if (Pos == OverriddenMethods.end()) 3827d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return 0; 3837d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3847d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return Pos->second.begin(); 3857d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor} 3867d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3877d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas GregorASTContext::overridden_cxx_method_iterator 3887d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas GregorASTContext::overridden_methods_end(const CXXMethodDecl *Method) const { 3897d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos 3907d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor = OverriddenMethods.find(Method); 3917d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor if (Pos == OverriddenMethods.end()) 3927d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return 0; 3937d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3947d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return Pos->second.end(); 3957d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor} 3967d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 3977d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregorvoid ASTContext::addOverriddenMethod(const CXXMethodDecl *Method, 3987d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor const CXXMethodDecl *Overridden) { 3997d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor OverriddenMethods[Method].push_back(Overridden); 4007d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor} 4017d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 4022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregornamespace { 4031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump class BeforeInTranslationUnit 4042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor : std::binary_function<SourceRange, SourceRange, bool> { 4052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceManager *SourceMgr; 4061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor public: 4082e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 4091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool operator()(SourceRange X, SourceRange Y) { 4112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 4122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor }; 4142e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 4152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 416464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 417464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 418464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 419a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 420b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 421b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 422b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 423183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const BuiltinType *BT = T->getAs<BuiltinType>(); 424b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 425b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 426b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 427b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 428b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 429b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 430b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 431b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 432b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 4338b752f10c394b140f9ef89e049cbad1a7676fc25Ken Dyck/// getDeclAlign - Return a conservative estimate of the alignment of the 434af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 435af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 4365d484e8cf710207010720589d89602233de61d01Sebastian Redl/// If @p RefAsPointee, references are treated like their underlying type 4375d484e8cf710207010720589d89602233de61d01Sebastian Redl/// (for alignof), else they're treated like pointers (for CodeGen). 4388b752f10c394b140f9ef89e049cbad1a7676fc25Ken DyckCharUnits ASTContext::getDeclAlign(const Decl *D, bool RefAsPointee) { 439dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 440dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 44140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 442bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Align = std::max(Align, AA->getMaxAlignment()); 443dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 444af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 445af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 4466217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType* RT = T->getAs<ReferenceType>()) { 4475d484e8cf710207010720589d89602233de61d01Sebastian Redl if (RefAsPointee) 4485d484e8cf710207010720589d89602233de61d01Sebastian Redl T = RT->getPointeeType(); 4495d484e8cf710207010720589d89602233de61d01Sebastian Redl else 4505d484e8cf710207010720589d89602233de61d01Sebastian Redl T = getPointerType(RT->getPointeeType()); 4515d484e8cf710207010720589d89602233de61d01Sebastian Redl } 4525d484e8cf710207010720589d89602233de61d01Sebastian Redl if (!T->isIncompleteType() && !T->isFunctionType()) { 4534cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 454dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 455dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 456dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 457dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 458dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 45905f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis if (const FieldDecl *FD = dyn_cast<FieldDecl>(VD)) { 46005f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis // In the case of a field in a packed struct, we want the minimum 46105f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis // of the alignment of the field and the alignment of the struct. 46205f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis Align = std::min(Align, 46305f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis getPreferredTypeAlign(FD->getParent()->getTypeForDecl())); 46405f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis } 465af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 466dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 4678b752f10c394b140f9ef89e049cbad1a7676fc25Ken Dyck return CharUnits::fromQuantity(Align / Target.getCharWidth()); 468af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 469b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 470a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 471a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 4720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// 4730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// FIXME: Pointers into different addr spaces could have different sizes and 4740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// alignment requirements: getPointerInfo should take an AddrSpace, this 4750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// should take a QualType, &c. 476d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 4771d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 4785e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 4795e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 480a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 48172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 48272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 48318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 48472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 48572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 48618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 48772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 48872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 4895d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 4905d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 49118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 49218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 49318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 49418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 49518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 49672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 497fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 49818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 49918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 50018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 50118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 502fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 5031d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 5041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 50598be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 5069e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 507030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 508030d8846c7e520330007087e949f621989876e3aChris Lattner break; 5095c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 510213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 511030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 5129fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner const VectorType *VT = cast<VectorType>(T); 5139fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(VT->getElementType()); 5149fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = EltInfo.first*VT->getNumElements(); 5154bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 5166fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 5176fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 5189fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner if (VT->getNumElements() & (VT->getNumElements()-1)) { 5199fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Align = llvm::NextPowerOf2(Align); 5209fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = llvm::RoundUpToAlignment(Width, Align); 5219fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner } 522030d8846c7e520330007087e949f621989876e3aChris Lattner break; 523030d8846c7e520330007087e949f621989876e3aChris Lattner } 5245d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 5259e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 526a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 527692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 528d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 52918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 53018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 53118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 53218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 53318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 5346f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 5359e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 5369e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 5376f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 538692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 539692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 540692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 5416f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 5429e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 5439e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 5446f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 54564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 54664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 54764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 54864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 549f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char16: 550f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar16Width(); 551f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar16Align(); 552f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 553f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char32: 554f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar32Width(); 555f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar32Align(); 556f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 557692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 5586f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 5599e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 5609e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 5616f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 562692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 5636f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 5649e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 5659e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 5666f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 567692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 5686f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 5699e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 5709e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 5716f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 572692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 5736f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 5749e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 5759e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 5766f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 577ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 578ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 579ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 580ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 581ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 5826f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 5839e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 5849e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 5856f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5866f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 5875426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 5885426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 5896f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5906f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 5919e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 5929e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 5936f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 5946e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 5956e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 5966e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 5971590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 598a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 599bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 600d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 6015426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 602f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 6036f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 604485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 605485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 606485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 607485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 608485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 609485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 6105d484e8cf710207010720589d89602233de61d01Sebastian Redl case Type::LValueReference: 6115d484e8cf710207010720589d89602233de61d01Sebastian Redl case Type::RValueReference: { 6125d484e8cf710207010720589d89602233de61d01Sebastian Redl // alignof and sizeof should never enter this code path here, so we go 6135d484e8cf710207010720589d89602233de61d01Sebastian Redl // the pointer route. 6145d484e8cf710207010720589d89602233de61d01Sebastian Redl unsigned AS = cast<ReferenceType>(T)->getPointeeType().getAddressSpace(); 6155d484e8cf710207010720589d89602233de61d01Sebastian Redl Width = Target.getPointerWidth(AS); 6165d484e8cf710207010720589d89602233de61d01Sebastian Redl Align = Target.getPointerAlign(AS); 6175d484e8cf710207010720589d89602233de61d01Sebastian Redl break; 6185d484e8cf710207010720589d89602233de61d01Sebastian Redl } 619f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 620f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 6215426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 622f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 623f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 624f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 625f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 626f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 6271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> PtrDiffInfo = 6281cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 6291cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 630f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 631f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 6321cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 6331cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 634f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 6355d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 6365d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 6375d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 6381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> EltInfo = 63998be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 6409e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 6415d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 6425d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 6435d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 64444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 6451d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 64644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 64744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 64844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 64944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 65044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 65172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 65272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 6531d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 6541d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 6551d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 6568389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 6578389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 6588389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 6598389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 6601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6611d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 6627176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 6637176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 6641d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 6657176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 6667176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 6677176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 668dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 669a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 6707532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 6719fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::SubstTemplateTypeParm: 67249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return getTypeInfo(cast<SubstTemplateTypeParmType>(T)-> 67349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall getReplacementType().getTypePtr()); 67449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 6759fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::Elaborated: 6769fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner return getTypeInfo(cast<ElaboratedType>(T)->getUnderlyingType() 6779fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner .getTypePtr()); 6787da2431c23ef1ee8acb114e39692246e1801afc2John McCall 67918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 68018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 68140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 682bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Align = std::max(Aligned->getMaxAlignment(), 683bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt getTypeAlign(Typedef->getUnderlyingType().getTypePtr())); 68418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 68518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 68618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 6877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 6887176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 68918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 69018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 69118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 69218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 69318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 69418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 69518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 69618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 697395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 698395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 699395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 700395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 70118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 70218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 7031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7043cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall case Type::InjectedClassName: 7053cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return getTypeInfo(cast<InjectedClassNameType>(T) 7063cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall ->getUnderlyingType().getTypePtr()); 7073cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 70818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 7091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(getCanonicalType(T) != T && 71018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 71118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 71218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 71318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 71418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 71518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 7161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 717464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 7189e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 719a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 720a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 721bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck/// getTypeSizeInChars - Return the size of the specified type, in characters. 722bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck/// This method does not work on incomplete types. 723bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen DyckCharUnits ASTContext::getTypeSizeInChars(QualType T) { 724199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return CharUnits::fromQuantity(getTypeSize(T) / getCharWidth()); 725bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck} 726bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen DyckCharUnits ASTContext::getTypeSizeInChars(const Type *T) { 727199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return CharUnits::fromQuantity(getTypeSize(T) / getCharWidth()); 728bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck} 729bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck 73016e20cce43385001f33f8e3f90ee345609c805d1Ken Dyck/// getTypeAlignInChars - Return the ABI-specified alignment of a type, in 73186fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck/// characters. This method does not work on incomplete types. 73286fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken DyckCharUnits ASTContext::getTypeAlignInChars(QualType T) { 73386fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck return CharUnits::fromQuantity(getTypeAlign(T) / getCharWidth()); 73486fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck} 73586fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken DyckCharUnits ASTContext::getTypeAlignInChars(const Type *T) { 73686fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck return CharUnits::fromQuantity(getTypeAlign(T) / getCharWidth()); 73786fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck} 73886fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck 73934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 74034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 74134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 74234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 74334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 74434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 7451eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 7461eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 747183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType* CT = T->getAs<ComplexType>()) 7481eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 7491eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 7501eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 7511eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 7521eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 75334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 75434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 75534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 756a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 757a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 758a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 759a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 760a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 761f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 762a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 763a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 764a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 765a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 766a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 767a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 768a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 769a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 770a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 771a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 772a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 773a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 7748e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 7758e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 7768e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 7778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 77811062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 7798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 7808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 7818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 7828e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 78311062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian 78411062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian CollectNonClassIvars(OI, Ivars); 7858e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 7868e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 78711062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian/// CollectNonClassIvars - 78811062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian/// This routine collects all other ivars which are not declared in the class. 7897d2aa11c5c3b85a9d727ff868de666ba3bff5b59Ted Kremenek/// This includes synthesized ivars (via @synthesize) and those in 7907d2aa11c5c3b85a9d727ff868de666ba3bff5b59Ted Kremenek// class's @implementation. 7919820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 79211062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanianvoid ASTContext::CollectNonClassIvars(const ObjCInterfaceDecl *OI, 7939820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 7940e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian // Find ivars declared in class extension. 7950e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian if (const ObjCCategoryDecl *CDecl = OI->getClassExtension()) { 7960e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian for (ObjCCategoryDecl::ivar_iterator I = CDecl->ivar_begin(), 7970e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian E = CDecl->ivar_end(); I != E; ++I) { 7980e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian Ivars.push_back(*I); 7990e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian } 8000e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian } 80111062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian 8027d2aa11c5c3b85a9d727ff868de666ba3bff5b59Ted Kremenek // Also add any ivar defined in this class's implementation. This 8037d2aa11c5c3b85a9d727ff868de666ba3bff5b59Ted Kremenek // includes synthesized ivars. 80411062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian if (ObjCImplementationDecl *ImplDecl = OI->getImplementation()) { 80511062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian for (ObjCImplementationDecl::ivar_iterator I = ImplDecl->ivar_begin(), 80611062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian E = ImplDecl->ivar_end(); I != E; ++I) 80711062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian Ivars.push_back(*I); 80811062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian } 8099820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8109820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 811e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// CollectInheritedProtocols - Collect all protocols in current class and 812e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// those inherited by it. 813e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid ASTContext::CollectInheritedProtocols(const Decl *CDecl, 814432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl*, 8> &Protocols) { 815e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCInterfaceDecl *OI = dyn_cast<ObjCInterfaceDecl>(CDecl)) { 816e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 817e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 818e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 819432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 820e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 821b2f812165676230bce5d0215e49a4749c451ca9cFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) { 822b2f812165676230bce5d0215e49a4749c451ca9cFariborz Jahanian Protocols.insert(*P); 823e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 824e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 825b2f812165676230bce5d0215e49a4749c451ca9cFariborz Jahanian } 826e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 827e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian // Categories of this Interface. 828e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (const ObjCCategoryDecl *CDeclChain = OI->getCategoryList(); 829e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CDeclChain; CDeclChain = CDeclChain->getNextClassCategory()) 830e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(CDeclChain, Protocols); 831e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (ObjCInterfaceDecl *SD = OI->getSuperClass()) 832e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian while (SD) { 833e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(SD, Protocols); 834e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian SD = SD->getSuperClass(); 835e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 836e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 837e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 838e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCCategoryDecl *OC = dyn_cast<ObjCCategoryDecl>(CDecl)) { 839e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OC->protocol_begin(), 840e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OC->protocol_end(); P != PE; ++P) { 841e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 842432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 843e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 844e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 845e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 846e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 847e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 848e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 849e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCProtocolDecl *OP = dyn_cast<ObjCProtocolDecl>(CDecl)) { 850e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = OP->protocol_begin(), 851e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OP->protocol_end(); P != PE; ++P) { 852e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 853432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 854e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 855e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 856e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 857e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 858e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 859e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 860e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 861e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 8623bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanianunsigned ASTContext::CountNonClassIvars(const ObjCInterfaceDecl *OI) { 8633bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian unsigned count = 0; 8643bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian // Count ivars declared in class extension. 8653bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian if (const ObjCCategoryDecl *CDecl = OI->getClassExtension()) { 8663bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian for (ObjCCategoryDecl::ivar_iterator I = CDecl->ivar_begin(), 8673bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian E = CDecl->ivar_end(); I != E; ++I) { 8688e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 8693bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian } 8708e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 8713bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian 8723bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian // Count ivar defined in this class's implementation. This 8733bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian // includes synthesized ivars. 8743bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian if (ObjCImplementationDecl *ImplDecl = OI->getImplementation()) 8753bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian for (ObjCImplementationDecl::ivar_iterator I = ImplDecl->ivar_begin(), 8763bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian E = ImplDecl->ivar_end(); I != E; ++I) 8773bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian ++count; 8788e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 8798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 8818a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCInterfaceDecl,or NULL if none exists. 8828a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { 8838a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 8848a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 8858a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 8868a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCImplementationDecl>(I->second); 8878a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 8888a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 8898a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCCategoryDecl, or NULL if none exists. 8908a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { 8918a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 8928a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 8938a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 8948a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCCategoryImplDecl>(I->second); 8958a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 8968a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 8978a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 8988a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCInterfaceDecl. 8998a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, 9008a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImplementationDecl *ImplD) { 9018a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(IFaceD && ImplD && "Passed null params"); 9028a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[IFaceD] = ImplD; 9038a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9048a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCCategoryDecl. 9058a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, 9068a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCCategoryImplDecl *ImplD) { 9078a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(CatD && ImplD && "Passed null params"); 9088a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[CatD] = ImplD; 9098a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9108a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 911a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Allocate an uninitialized TypeSourceInfo. 912b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 913a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// The caller should initialize the memory held by TypeSourceInfo using 914b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// the TypeLoc wrappers. 915b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 916b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \param T the type that will be the basis for type source info. This type 917b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// should refer to how the declarator was written in source code, not to 918b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// what type semantic analysis resolved the declarator to. 919a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo *ASTContext::CreateTypeSourceInfo(QualType T, 920109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall unsigned DataSize) { 921109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall if (!DataSize) 922109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall DataSize = TypeLoc::getFullDataSizeForType(T); 923109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall else 924109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall assert(DataSize == TypeLoc::getFullDataSizeForType(T) && 925a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall "incorrect data size provided to CreateTypeSourceInfo!"); 926109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall 927a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 928a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall (TypeSourceInfo*)BumpAlloc.Allocate(sizeof(TypeSourceInfo) + DataSize, 8); 929a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (TInfo) TypeSourceInfo(T); 930a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 931b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis} 932b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis 933a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo *ASTContext::getTrivialTypeSourceInfo(QualType T, 934a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall SourceLocation L) { 935a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = CreateTypeSourceInfo(T); 936a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall DI->getTypeLoc().initialize(L); 937a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall return DI; 938a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall} 939a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall 940b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 941b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 942b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 943b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 944b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 94544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 946b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 947b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 948532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 949532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 95044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 9511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCContainerDecl *Key = 952d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 953d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 954d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 95544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 956453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 957453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 9583bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian unsigned SynthCount = CountNonClassIvars(D); 959d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 960453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 961453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 962453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 9638e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 964453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 965453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 966453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 9671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 96829445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D, Impl); 96929445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ObjCLayouts[Key] = NewEntry; 9701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 97144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 97244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 97344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 974b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 975b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 976b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 977b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 978b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 979b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 980b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 981b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 982b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 983b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 98488a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 985464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 986464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 98798be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 988952b017601f9c82b51119c3a1600f1312a833db9Douglas Gregor D = D->getDefinition(); 9894b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 9904bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 991464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 992ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // Note that we can't save a reference to the entry because this function 993ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // is recursive. 994ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman const ASTRecordLayout *Entry = ASTRecordLayouts[D]; 995464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 9964bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 9971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 99829445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D); 999ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman ASTRecordLayouts[D] = NewEntry; 10001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10015d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 1002464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 1003464175bba1318bef7905122e9fda20cff926df78Chris Lattner 1004f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlssonconst CXXMethodDecl *ASTContext::getKeyFunction(const CXXRecordDecl *RD) { 1005952b017601f9c82b51119c3a1600f1312a833db9Douglas Gregor RD = cast<CXXRecordDecl>(RD->getDefinition()); 1006f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson assert(RD && "Cannot get key function for forward declarations!"); 1007f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1008f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson const CXXMethodDecl *&Entry = KeyFunctions[RD]; 1009f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson if (!Entry) 1010f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson Entry = ASTRecordLayoutBuilder::ComputeKeyFunction(RD); 1011f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson else 1012f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson assert(Entry == ASTRecordLayoutBuilder::ComputeKeyFunction(RD) && 1013f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson "Key function changed!"); 1014f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1015f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson return Entry; 1016f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson} 1017f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1018a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1019a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 1020a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1021a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 10220953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getExtQualType(const Type *TypeNode, Qualifiers Quals) { 10230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned Fast = Quals.getFastQualifiers(); 10240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeFastQualifiers(); 10250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Check if we've already instantiated this type. 10270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::FoldingSetNodeID ID; 10280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQuals::Profile(ID, TypeNode, Quals); 10290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void *InsertPos = 0; 10300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ExtQuals *EQ = ExtQualNodes.FindNodeOrInsertPos(ID, InsertPos)) { 10310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(EQ->getQualifiers() == Quals); 10320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(EQ, Fast); 10330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 10340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 10350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10366b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtQuals *New = new (*this, TypeAlignment) ExtQuals(*this, TypeNode, Quals); 10370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQualNodes.InsertNode(New, InsertPos); 10380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(New, Fast); 10390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 10400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 10410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10420953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getVolatileType(QualType T) { 10430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanT = getCanonicalType(T); 10440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (CanT.isVolatileQualified()) return T; 10450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 10470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 10480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addVolatile(); 10490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 10510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 10520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1053f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 1054f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 1055f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 1056f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 1057b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 10580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 10590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 10600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 10610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 10621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an address space specified, it cannot get 10640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 10650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasAddressSpace() && 10660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot be in multiple addr spaces!"); 10670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addAddressSpace(AddressSpace); 10681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1070ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 1071ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1072b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 10730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr) { 1074d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 1075b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 1076d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 10771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10784027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 10796217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 108058f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff if (Pointee->isAnyPointerType()) { 10814027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 10824027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 10834027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 10844027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 10851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10860953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 10870953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 10880953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 10890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 10901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an ObjCGC specified, it cannot get 10920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 10930953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasObjCGCAttr() && 10940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot have multiple ObjCGCs!"); 10950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addObjCGCAttr(GCAttr); 10961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1098d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1099a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 1100264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindolastatic QualType getExtFunctionType(ASTContext& Context, QualType T, 1101264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const FunctionType::ExtInfo &Info) { 11020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType ResultType; 110343c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (const PointerType *Pointer = T->getAs<PointerType>()) { 110443c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor QualType Pointee = Pointer->getPointeeType(); 1105264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola ResultType = getExtFunctionType(Context, Pointee, Info); 110643c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (ResultType == Pointee) 110743c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1108ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1109ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getPointerType(ResultType); 111043c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else if (const BlockPointerType *BlockPointer 111143c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor = T->getAs<BlockPointerType>()) { 111243c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor QualType Pointee = BlockPointer->getPointeeType(); 1113264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola ResultType = getExtFunctionType(Context, Pointee, Info); 111443c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (ResultType == Pointee) 111543c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1116ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1117ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getBlockPointerType(ResultType); 1118ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor } else if (const FunctionType *F = T->getAs<FunctionType>()) { 1119264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola if (F->getExtInfo() == Info) 112043c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1121ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 112243c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (const FunctionNoProtoType *FNPT = dyn_cast<FunctionNoProtoType>(F)) { 1123ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getFunctionNoProtoType(FNPT->getResultType(), 1124264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info); 11250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else { 112643c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor const FunctionProtoType *FPT = cast<FunctionProtoType>(F); 11270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType 1128ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor = Context.getFunctionType(FPT->getResultType(), FPT->arg_type_begin(), 1129ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getNumArgs(), FPT->isVariadic(), 1130ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getTypeQuals(), 1131ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->hasExceptionSpec(), 1132ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->hasAnyExceptionSpec(), 1133ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getNumExceptions(), 1134ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->exception_begin(), 1135264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info); 11360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 113743c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else 113843c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1139ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1140ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return Context.getQualifiedType(ResultType, T.getLocalQualifiers()); 1141ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 1142ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1143ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getNoReturnType(QualType T, bool AddNoReturn) { 1144425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo Info = getFunctionExtInfo(T); 1145264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return getExtFunctionType(*this, T, 1146264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info.withNoReturn(AddNoReturn)); 1147ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 1148ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1149ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getCallConvType(QualType T, CallingConv CallConv) { 1150425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo Info = getFunctionExtInfo(T); 1151264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return getExtFunctionType(*this, T, 1152264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info.withCallingConv(CallConv)); 11532455636163fdd18581d7fdae816433f886d88213Mike Stump} 11542455636163fdd18581d7fdae816433f886d88213Mike Stump 1155425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael EspindolaQualType ASTContext::getRegParmType(QualType T, unsigned RegParm) { 1156425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo Info = getFunctionExtInfo(T); 1157425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return getExtFunctionType(*this, T, 1158425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola Info.withRegParm(RegParm)); 1159425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola} 1160425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 11615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 11625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 11645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 11681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 11715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 11721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1176467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1177f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 11781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1181f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11836b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ComplexType *New = new (*this, TypeAlignment) ComplexType(T, Canonical); 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 11905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 11915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 11961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 11995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 12001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 12025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1204467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1205f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 12061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1209f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12116b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall PointerType *New = new (*this, TypeAlignment) PointerType(T, Canonical); 12125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getBlockPointerType - Return the uniqued reference to the type for 12185618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 12195618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1220296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1221296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 12225618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 12235618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 12245618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 12251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12265618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 12275618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 12285618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 12295618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 12301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the block pointee type isn't canonical, this won't be a canonical 12325618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 12335618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 1234467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 12355618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 12361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12375618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 12385618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 12395618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1240f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12415618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 12426b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BlockPointerType *New 12436b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) BlockPointerType(T, Canonical); 12445618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 12455618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 12465618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 12475618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 12485618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 12497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 12507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 125154e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType ASTContext::getLValueReferenceType(QualType T, bool SpelledAsLValue) { 12525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 125554e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, SpelledAsLValue); 12565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 12597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 12617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 126254e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 126354e14c4db764c0636160d26c5bbf491637c83a76John McCall 12645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 12655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 126754e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!SpelledAsLValue || InnerRef || !T.isCanonical()) { 126854e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 126954e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getLValueReferenceType(getCanonicalType(PointeeType)); 12707c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12717c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 12727c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 12737c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 12747c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12757c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 12767c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12776b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall LValueReferenceType *New 127854e14c4db764c0636160d26c5bbf491637c83a76John McCall = new (*this, TypeAlignment) LValueReferenceType(T, Canonical, 127954e14c4db764c0636160d26c5bbf491637c83a76John McCall SpelledAsLValue); 12807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 12817c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 128254e14c4db764c0636160d26c5bbf491637c83a76John McCall 12837c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 12847c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 12857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 12877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 12887c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 12897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 12907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 12917c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 129254e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, false); 12937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 12957c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 12967c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12977c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 12987c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 129954e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 130054e14c4db764c0636160d26c5bbf491637c83a76John McCall 13017c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 13027c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 13037c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 130454e14c4db764c0636160d26c5bbf491637c83a76John McCall if (InnerRef || !T.isCanonical()) { 130554e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 130654e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getRValueReferenceType(getCanonicalType(PointeeType)); 13077c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13097c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 13107c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1311f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13146b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall RValueReferenceType *New 13156b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); 13165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13177c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 13185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1321f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1322f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 13231eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) { 1324f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1325f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1326f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1327f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1328f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1329f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1330f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1331f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1332f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1333f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1334f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1335f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1336f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 133787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor if (!T.isCanonical() || !Cls->isCanonicalUnqualified()) { 1338f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1339f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1340f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1341f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1342f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1343f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1344f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 13456b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall MemberPointerType *New 13466b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); 1347f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1348f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1349f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1350f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1351f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 13521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getConstantArrayType - Return the unique reference to the type for an 1353fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 13541eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getConstantArrayType(QualType EltTy, 135538aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1356c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1357c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1358923d56d436f750bc1f29db50e641078725558a1bSebastian Redl assert((EltTy->isDependentType() || 1359923d56d436f750bc1f29db50e641078725558a1bSebastian Redl EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && 1360587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1361587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 136238aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 136338aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 136438aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 136538aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 13661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 13680be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 13691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ConstantArrayType *ATP = 13727192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 13735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 13741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 13765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 13775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1378467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 13791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1380c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 13815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ConstantArrayType *NewIP = 13837192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1384f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13876b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType *New = new(*this,TypeAlignment) 13886b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 13897192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 13905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1394bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1395bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 13967e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 13977e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1398c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 13997e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14007e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1401c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1402c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1403c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 14046b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType *New = new(*this, TypeAlignment) 14056b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType(EltTy, QualType(), NumElts, ASM, EltTypeQuals, Brackets); 1406c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1407c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1408c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1409c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1410c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1411c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1412898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1413898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 141404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor/// type. 14157e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 14167e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1417898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 14187e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14197e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1420cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor assert((!NumElts || NumElts->isTypeDependent() || 1421cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor NumElts->isValueDependent()) && 1422898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1423898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 142404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor void *InsertPos = 0; 1425cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayType *Canon = 0; 1426789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor llvm::FoldingSetNodeID ID; 1427cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1428cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor if (NumElts) { 1429cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // Dependently-sized array types that do not have a specified 1430cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // number of elements will have their sizes deduced from an 1431cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // initializer. 1432cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayType::Profile(ID, *this, getCanonicalType(EltTy), ASM, 1433cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor EltTypeQuals, NumElts); 1434cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1435cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor Canon = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1436cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor } 1437cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 143804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *New; 143904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (Canon) { 144004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // We already have a canonical version of this array type; use it as 144104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // the canonical type for a newly-built type. 14426b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14436b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(Canon, 0), 14446b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 144504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 144604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType CanonEltTy = getCanonicalType(EltTy); 144704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (CanonEltTy == EltTy) { 14486b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14496b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(), 14506b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 1451cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1452789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (NumElts) { 1453789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentSizedArrayType *CanonCheck 1454789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1455789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CanonCheck && "Dependent-sized canonical array type broken"); 1456789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CanonCheck; 1457cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayTypes.InsertNode(New, InsertPos); 1458789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 145904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 146004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType Canon = getDependentSizedArrayType(CanonEltTy, NumElts, 146104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor ASM, EltTypeQuals, 146204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor SourceRange()); 14636b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14646b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, Canon, 14656b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 146604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 146704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 14681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1469898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1470898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1471898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1472898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1473c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1474c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1475c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1476c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 14770be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1478c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1479c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 14801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (IncompleteArrayType *ATP = 1481c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1482c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1483c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1484c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1485c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1486c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1487c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1488467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 1489f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 14902bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1491c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1492c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1493c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1494c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1495f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14962bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1497c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 14986b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType *New = new (*this, TypeAlignment) 14996b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType(EltTy, Canonical, ASM, EltTypeQuals); 1500c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1501c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1502c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1503c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1504fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1505fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 150673322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 150773322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 150882287d19ded35248c4ce6a425ce74116a13ce44eJohn ThompsonQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts, 150982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson bool IsAltiVec, bool IsPixel) { 15105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 15111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1512f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 151373322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 15141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 15165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 151782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VectorType::Profile(ID, vecType, NumElts, Type::Vector, 151882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson IsAltiVec, IsPixel); 15195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 15205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 15215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 15225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 15245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 15255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 152682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson if (!vecType.isCanonical() || IsAltiVec || IsPixel) { 152782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Canonical = getVectorType(getCanonicalType(vecType), 152882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson NumElts, false, false); 15291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 15315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1532f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15346b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType *New = new (*this, TypeAlignment) 153582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VectorType(vecType, NumElts, Canonical, IsAltiVec, IsPixel); 15365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 15375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 15385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 15395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1541213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 154273322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1543213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 154473322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 15451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1546f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1547213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 15481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 154973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 155073322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 155182287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VectorType::Profile(ID, vecType, NumElts, Type::ExtVector, false, false); 155273322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 155373322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 155473322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 155573322924127c873c13101b705dd823f5539ffa5fSteve Naroff 155673322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 155773322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 155873322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 1559467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!vecType.isCanonical()) { 1560213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 15611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 156273322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 156373322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1564f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 156573322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 15666b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType *New = new (*this, TypeAlignment) 15676b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType(vecType, NumElts, Canonical); 156873322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 156973322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 157073322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 157173322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 157273322924127c873c13101b705dd823f5539ffa5fSteve Naroff 15731eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 15749cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 15759cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 15762ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor llvm::FoldingSetNodeID ID; 15771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), 15782ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr); 15791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15802ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor void *InsertPos = 0; 15812ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *Canon 15822ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 15832ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *New; 15842ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (Canon) { 15852ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // We already have a canonical version of this array type; use it as 15862ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // the canonical type for a newly-built type. 15876b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15886b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), 15896b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall SizeExpr, AttrLoc); 15902ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 15912ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType CanonVecTy = getCanonicalType(vecType); 15922ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (CanonVecTy == vecType) { 15936b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 15946b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, 15956b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall AttrLoc); 1596789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 1597789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentSizedExtVectorType *CanonCheck 1598789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1599789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CanonCheck && "Dependent-sized ext_vector canonical type broken"); 1600789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CanonCheck; 16012ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorTypes.InsertNode(New, InsertPos); 16022ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 16032ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType Canon = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, 16042ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SourceLocation()); 16056b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16066b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, Canon, SizeExpr, AttrLoc); 16072ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 16082ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 16091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16109cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 16119cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 16129cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 16139cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 161472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 16155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1616264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael EspindolaQualType ASTContext::getFunctionNoProtoType(QualType ResultTy, 1617264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const FunctionType::ExtInfo &Info) { 1618264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const CallingConv CallConv = Info.getCC(); 16195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 16205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 16215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 1622264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionNoProtoType::Profile(ID, ResultTy, Info); 16231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionNoProtoType *FT = 162672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 16275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 16281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1630ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor if (!ResultTy.isCanonical() || 163104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall getCanonicalCallConv(CallConv) != CallConv) { 1632264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Canonical = 1633264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola getFunctionNoProtoType(getCanonicalType(ResultTy), 1634264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info.withCallingConv(getCanonicalCallConv(CallConv))); 16351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 163772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 163872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1639f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16426b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType *New = new (*this, TypeAlignment) 1643264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionNoProtoType(ResultTy, Canonical, Info); 16445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 164572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 16465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 16475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 16505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 165161710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1652971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1653465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1654465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 1655264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const QualType *ExArray, 1656264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const FunctionType::ExtInfo &Info) { 1657264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const CallingConv CallConv= Info.getCC(); 16585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 16595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 16605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 166172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1662465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1663264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola NumExs, ExArray, Info); 16645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionProtoType *FTP = 166772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 16685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1669465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1670465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 167154e14c4db764c0636160d26c5bbf491637c83a76John McCall bool isCanonical = !hasExceptionSpec && ResultTy.isCanonical(); 16725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 167354e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!ArgArray[i].isCanonicalAsParam()) 16745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 16755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1677465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 16785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 167904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!isCanonical || getCanonicalCallConv(CallConv) != CallConv) { 16805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 16815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 16825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 168354e14c4db764c0636160d26c5bbf491637c83a76John McCall CanonicalArgs.push_back(getCanonicalParamType(ArgArray[i])); 1684465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1685f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1686beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 168747259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor isVariadic, TypeQuals, false, 1688264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola false, 0, 0, 1689264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info.withCallingConv(getCanonicalCallConv(CallConv))); 1690465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 16915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 169272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 169372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1694f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1696465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 169772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1698465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1699465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 17001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FunctionProtoType *FTP = 1701465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1702465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 17036b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumExs*sizeof(QualType), TypeAlignment); 170472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1705465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1706264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola ExArray, NumExs, Canonical, Info); 17075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 170872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 17095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 17105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17123cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall#ifndef NDEBUG 17133cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallstatic bool NeedsInjectedClassNameType(const RecordDecl *D) { 17143cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (!isa<CXXRecordDecl>(D)) return false; 17153cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall const CXXRecordDecl *RD = cast<CXXRecordDecl>(D); 17163cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (isa<ClassTemplatePartialSpecializationDecl>(RD)) 17173cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return true; 17183cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (RD->getDescribedClassTemplate() && 17193cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall !isa<ClassTemplateSpecializationDecl>(RD)) 17203cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return true; 17213cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return false; 17223cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall} 17233cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall#endif 17243cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 17253cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall/// getInjectedClassNameType - Return the unique reference to the 17263cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall/// injected class name type for the specified templated declaration. 17273cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallQualType ASTContext::getInjectedClassNameType(CXXRecordDecl *Decl, 17283cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall QualType TST) { 17293cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(NeedsInjectedClassNameType(Decl)); 17303cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (Decl->TypeForDecl) { 17313cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(isa<InjectedClassNameType>(Decl->TypeForDecl)); 17323cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } else if (CXXRecordDecl *PrevDecl 17333cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall = cast_or_null<CXXRecordDecl>(Decl->getPreviousDeclaration())) { 17343cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(PrevDecl->TypeForDecl && "previous declaration has no type"); 17353cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall Decl->TypeForDecl = PrevDecl->TypeForDecl; 17363cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(isa<InjectedClassNameType>(Decl->TypeForDecl)); 17373cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } else { 17383cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall Decl->TypeForDecl = new (*this, TypeAlignment) 17393cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall InjectedClassNameType(Decl, TST, TST->getCanonicalTypeInternal()); 17403cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall Types.push_back(Decl->TypeForDecl); 17413cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } 17423cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return QualType(Decl->TypeForDecl, 0); 17433cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall} 17443cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 17452ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 17462ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 1747becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCallQualType ASTContext::getTypeDeclTypeSlow(const TypeDecl *Decl) { 17481e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 1749becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!Decl->TypeForDecl && "TypeForDecl present in slow case"); 17501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 175119c8576b7328f4dc2d07682f5da552875c1912efJohn McCall if (const TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 17522ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1753becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall 1754becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall if (const ObjCInterfaceDecl *ObjCInterface 17559fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump = dyn_cast<ObjCInterfaceDecl>(Decl)) 17562ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 175749aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1758becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!isa<TemplateTypeParmDecl>(Decl) && 1759becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall "Template type parameter types are always available."); 1760becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall 176119c8576b7328f4dc2d07682f5da552875c1912efJohn McCall if (const RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1762becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!Record->getPreviousDeclaration() && 1763becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall "struct/union has previous declaration"); 1764becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!NeedsInjectedClassNameType(Record)); 1765becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) RecordType(Record); 176619c8576b7328f4dc2d07682f5da552875c1912efJohn McCall } else if (const EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1767becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!Enum->getPreviousDeclaration() && 1768becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall "enum has previous declaration"); 1769becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) EnumType(Enum); 177019c8576b7328f4dc2d07682f5da552875c1912efJohn McCall } else if (const UnresolvedUsingTypenameDecl *Using = 1771ed97649e9574b9d854fa4d6109c9333ae0993554John McCall dyn_cast<UnresolvedUsingTypenameDecl>(Decl)) { 1772ed97649e9574b9d854fa4d6109c9333ae0993554John McCall Decl->TypeForDecl = new (*this, TypeAlignment) UnresolvedUsingType(Using); 17739fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else 1774becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall llvm_unreachable("TypeDecl without a type?"); 177549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1776becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall Types.push_back(Decl->TypeForDecl); 177749aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 17782ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 17792ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 17805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 17815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 178219c8576b7328f4dc2d07682f5da552875c1912efJohn McCallQualType ASTContext::getTypedefType(const TypedefDecl *Decl) { 17835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 17841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1785f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 17866b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new(*this, TypeAlignment) 17876b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypedefType(Type::Typedef, Decl, Canonical); 17885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 17895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 17905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 179249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// \brief Retrieve a substitution-result type. 179349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallQualType 179449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallASTContext::getSubstTemplateTypeParmType(const TemplateTypeParmType *Parm, 179549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType Replacement) { 1796467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(Replacement.isCanonical() 179749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall && "replacement types must always be canonical"); 179849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 179949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall llvm::FoldingSetNodeID ID; 180049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType::Profile(ID, Parm, Replacement); 180149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall void *InsertPos = 0; 180249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType *SubstParm 180349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall = SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 180449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 180549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall if (!SubstParm) { 180649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstParm = new (*this, TypeAlignment) 180749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType(Parm, Replacement); 180849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall Types.push_back(SubstParm); 180949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos); 181049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 181149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 181249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return QualType(SubstParm, 0); 181349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall} 181449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 1815fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 18161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parameter or parameter pack with the given depth, index, and (optionally) 181776e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 18181eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 181976e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1820fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1821fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 182276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1823fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 18241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateTypeParmType *TypeParm 1825fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1826fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1827fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1828fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 18291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 183076e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 183176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 18326b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 18336b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack, Name, Canon); 1834789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 1835789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor TemplateTypeParmType *TypeCheck 1836789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1837789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!TypeCheck && "Template type parameter canonical type broken"); 1838789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)TypeCheck; 183976e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 18406b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 18416b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack); 1842fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1843fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1844fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1845fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1846fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1847fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1848fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 18493cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallTypeSourceInfo * 18503cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallASTContext::getTemplateSpecializationTypeInfo(TemplateName Name, 18513cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall SourceLocation NameLoc, 18523cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall const TemplateArgumentListInfo &Args, 18533cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall QualType CanonType) { 18543cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall QualType TST = getTemplateSpecializationType(Name, Args, CanonType); 18553cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 18563cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TypeSourceInfo *DI = CreateTypeSourceInfo(TST); 18573cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TemplateSpecializationTypeLoc TL 18583cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall = cast<TemplateSpecializationTypeLoc>(DI->getTypeLoc()); 18593cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setTemplateNameLoc(NameLoc); 18603cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setLAngleLoc(Args.getLAngleLoc()); 18613cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setRAngleLoc(Args.getRAngleLoc()); 18623cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) 18633cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setArgLocInfo(i, Args[i].getLocInfo()); 18643cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return DI; 18653cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall} 18663cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 18671eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 18687532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 1869d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo &Args, 1870833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall QualType Canon) { 1871d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall unsigned NumArgs = Args.size(); 1872d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 1873833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall llvm::SmallVector<TemplateArgument, 4> ArgVec; 1874833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.reserve(NumArgs); 1875833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall for (unsigned i = 0; i != NumArgs; ++i) 1876833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.push_back(Args[i].getArgument()); 1877833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1878833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return getTemplateSpecializationType(Template, ArgVec.data(), NumArgs, Canon); 1879833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall} 1880833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1881833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallQualType 1882833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallASTContext::getTemplateSpecializationType(TemplateName Template, 18837532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 18847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 18857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 1886b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (!Canon.isNull()) 1887b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = getCanonicalType(Canon); 1888b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor else { 1889b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor // Build the canonical template specialization type. 18901275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateName CanonTemplate = getCanonicalTemplateName(Template); 18911275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::SmallVector<TemplateArgument, 4> CanonArgs; 18921275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.reserve(NumArgs); 18931275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor for (unsigned I = 0; I != NumArgs; ++I) 18941275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.push_back(getCanonicalTemplateArgument(Args[I])); 18951275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 18961275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Determine whether this canonical template specialization type already 18971275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // exists. 18981275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::FoldingSetNodeID ID; 18991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType::Profile(ID, CanonTemplate, 1900828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor CanonArgs.data(), NumArgs, *this); 19011275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 19021275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor void *InsertPos = 0; 19031275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateSpecializationType *Spec 19041275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 19051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19061275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor if (!Spec) { 19071275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate a new canonical template specialization type. 19081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 19091275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor sizeof(TemplateArgument) * NumArgs), 19106b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 19111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Spec = new (Mem) TemplateSpecializationType(*this, CanonTemplate, 19121275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.data(), NumArgs, 1913b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon); 19141275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Types.push_back(Spec); 19151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 19161275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 19171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1918b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (Canon.isNull()) 1919b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = QualType(Spec, 0); 19201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(Canon->isDependentType() && 19211275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor "Non-dependent template-id type must have a canonical type"); 1922b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor } 1923fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 19241275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate the (non-canonical) template specialization type, but don't 19251275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // try to unique it: these types typically have location information that 19261275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // we don't unique and don't want to lose. 19271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 192840808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 19296b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 19301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType *Spec 19311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = new (Mem) TemplateSpecializationType(*this, Template, Args, NumArgs, 1932828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor Canon); 19331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 193455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 19351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(Spec, 0); 193655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 193755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 19381eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 1939ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1940e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1941e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1942ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1943e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1944e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 19451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualifiedNameType *T 1946e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1947e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1948e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1949e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1950789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor QualType Canon = NamedType; 1951789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (!Canon.isCanonical()) { 1952789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor Canon = getCanonicalType(NamedType); 1953789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor QualifiedNameType *CheckT 1954789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1955789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckT && "Qualified name canonical type broken"); 1956789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckT; 1957789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 1958789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 1959789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor T = new (*this) QualifiedNameType(NNS, NamedType, Canon); 1960e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1961e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1962e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1963e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1964e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 19654a2023f5014e82389d5980d307b89c545dbbac81Douglas GregorQualType ASTContext::getDependentNameType(ElaboratedTypeKeyword Keyword, 19664a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NestedNameSpecifier *NNS, 19674a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor const IdentifierInfo *Name, 19684a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor QualType Canon) { 1969d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1970d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1971d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1972d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 19734a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor ElaboratedTypeKeyword CanonKeyword = Keyword; 19744a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor if (Keyword == ETK_None) 19754a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor CanonKeyword = ETK_Typename; 19764a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor 19774a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor if (CanonNNS != NNS || CanonKeyword != Keyword) 19784a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor Canon = getDependentNameType(CanonKeyword, CanonNNS, Name); 1979d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1980d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1981d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 19824a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor DependentNameType::Profile(ID, Keyword, NNS, Name); 1983d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1984d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 19854714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor DependentNameType *T 19864714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor = DependentNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1987d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1988d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1989d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 19904a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor T = new (*this) DependentNameType(Keyword, NNS, Name, Canon); 1991d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 19924714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor DependentNameTypes.InsertNode(T, InsertPos); 19931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 1994d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1995d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 19961eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 19974a2023f5014e82389d5980d307b89c545dbbac81Douglas GregorASTContext::getDependentNameType(ElaboratedTypeKeyword Keyword, 19984a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NestedNameSpecifier *NNS, 19994a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor const TemplateSpecializationType *TemplateId, 20004a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor QualType Canon) { 20011734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 20021734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 2003789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor llvm::FoldingSetNodeID ID; 20044a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor DependentNameType::Profile(ID, Keyword, NNS, TemplateId); 2005789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 2006789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor void *InsertPos = 0; 20074714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor DependentNameType *T 20084714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor = DependentNameTypes.FindNodeOrInsertPos(ID, InsertPos); 2009789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (T) 2010789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor return QualType(T, 0); 2011789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 20121734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 20131734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 20141734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 20154a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor ElaboratedTypeKeyword CanonKeyword = Keyword; 20164a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor if (Keyword == ETK_None) 20174a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor CanonKeyword = ETK_Typename; 20184a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor if (CanonNNS != NNS || CanonKeyword != Keyword || 20194a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor CanonType != QualType(TemplateId, 0)) { 20201734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 2021183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall = CanonType->getAs<TemplateSpecializationType>(); 20221734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 20231734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 20244a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor Canon = getDependentNameType(CanonKeyword, CanonNNS, CanonTemplateId); 20251734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 20261734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20274714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor DependentNameType *CheckT 20284714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor = DependentNameTypes.FindNodeOrInsertPos(ID, InsertPos); 2029789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckT && "Typename canonical type is broken"); (void)CheckT; 2030789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 20311734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20324a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor T = new (*this) DependentNameType(Keyword, NNS, TemplateId, Canon); 20331734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 20344714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor DependentNameTypes.InsertNode(T, InsertPos); 20351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 20361734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 20371734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 20387da2431c23ef1ee8acb114e39692246e1801afc2John McCallQualType 20397da2431c23ef1ee8acb114e39692246e1801afc2John McCallASTContext::getElaboratedType(QualType UnderlyingType, 20407da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::TagKind Tag) { 20417da2431c23ef1ee8acb114e39692246e1801afc2John McCall llvm::FoldingSetNodeID ID; 20427da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::Profile(ID, UnderlyingType, Tag); 20431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20447da2431c23ef1ee8acb114e39692246e1801afc2John McCall void *InsertPos = 0; 20457da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 20467da2431c23ef1ee8acb114e39692246e1801afc2John McCall if (T) 20477da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 20487da2431c23ef1ee8acb114e39692246e1801afc2John McCall 2049789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor QualType Canon = UnderlyingType; 2050789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (!Canon.isCanonical()) { 2051789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor Canon = getCanonicalType(Canon); 2052789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor ElaboratedType *CheckT = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 2053789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckT && "Elaborated canonical type is broken"); (void)CheckT; 2054789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 20557da2431c23ef1ee8acb114e39692246e1801afc2John McCall 20567da2431c23ef1ee8acb114e39692246e1801afc2John McCall T = new (*this) ElaboratedType(UnderlyingType, Tag, Canon); 20577da2431c23ef1ee8acb114e39692246e1801afc2John McCall Types.push_back(T); 20587da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedTypes.InsertNode(T, InsertPos); 20597da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 20607da2431c23ef1ee8acb114e39692246e1801afc2John McCall} 20617da2431c23ef1ee8acb114e39692246e1801afc2John McCall 206288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 206388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 206488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 206588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 20662e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 206788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 206888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 206954e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic bool areSortedAndUniqued(ObjCProtocolDecl **Protocols, 207054e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned NumProtocols) { 207154e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols == 0) return true; 207254e14c4db764c0636160d26c5bbf491637c83a76John McCall 207354e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 1; i != NumProtocols; ++i) 207454e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!CmpProtocolNames(Protocols[i-1], Protocols[i])) 207554e14c4db764c0636160d26c5bbf491637c83a76John McCall return false; 207654e14c4db764c0636160d26c5bbf491637c83a76John McCall return true; 207754e14c4db764c0636160d26c5bbf491637c83a76John McCall} 207854e14c4db764c0636160d26c5bbf491637c83a76John McCall 207954e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic void SortAndUniqueProtocols(ObjCProtocolDecl **Protocols, 208088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 208188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 20821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 208388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 208488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 208588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 208688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 208788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 208888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 208988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 209088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2091d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 2092d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 209314108da7f7fc059772711e4ffee1322a27b152a7Steve NaroffQualType ASTContext::getObjCObjectPointerType(QualType InterfaceT, 20941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCProtocolDecl **Protocols, 2095a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian unsigned NumProtocols, 2096a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian unsigned Quals) { 2097d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff llvm::FoldingSetNodeID ID; 209814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ObjCObjectPointerType::Profile(ID, InterfaceT, Protocols, NumProtocols); 2099a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian Qualifiers Qs = Qualifiers::fromCVRMask(Quals); 2100d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 2101d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 2102d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (ObjCObjectPointerType *QT = 2103d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 2104a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian return getQualifiedType(QualType(QT, 0), Qs); 2105d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 210654e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 210754e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 210854e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!InterfaceT.isCanonical() || 210954e14c4db764c0636160d26c5bbf491637c83a76John McCall !areSortedAndUniqued(Protocols, NumProtocols)) { 211054e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!areSortedAndUniqued(Protocols, NumProtocols)) { 211154e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 211254e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 211354e14c4db764c0636160d26c5bbf491637c83a76John McCall 211454e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 211554e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 211654e14c4db764c0636160d26c5bbf491637c83a76John McCall 211754e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 211854e14c4db764c0636160d26c5bbf491637c83a76John McCall &Sorted[0], UniqueCount); 211954e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 212054e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 212154e14c4db764c0636160d26c5bbf491637c83a76John McCall Protocols, NumProtocols); 212254e14c4db764c0636160d26c5bbf491637c83a76John McCall } 212354e14c4db764c0636160d26c5bbf491637c83a76John McCall 212454e14c4db764c0636160d26c5bbf491637c83a76John McCall // Regenerate InsertPos. 212554e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 212654e14c4db764c0636160d26c5bbf491637c83a76John McCall } 212754e14c4db764c0636160d26c5bbf491637c83a76John McCall 2128fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor // No match. 2129fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor unsigned Size = sizeof(ObjCObjectPointerType) 2130fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor + NumProtocols * sizeof(ObjCProtocolDecl *); 2131fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor void *Mem = Allocate(Size, TypeAlignment); 2132fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor ObjCObjectPointerType *QType = new (Mem) ObjCObjectPointerType(Canonical, 2133fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor InterfaceT, 2134fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor Protocols, 2135fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor NumProtocols); 21361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2137d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 2138d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 2139a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian return getQualifiedType(QualType(QType, 0), Qs); 2140d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 214188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2142c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// getObjCInterfaceType - Return the unique reference to the type for the 2143c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// specified ObjC interface decl. The list of protocols is optional. 2144c15cb2af27514ecc879daba9aa01389c5203685dSteve NaroffQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, 2145a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 21464b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 2147c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 21481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21494b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 2150c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (ObjCInterfaceType *QT = 2151c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 21524b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 21531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 215454e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 215554e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 215654e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols && !areSortedAndUniqued(Protocols, NumProtocols)) { 215754e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 215854e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 21594b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 216054e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 216154e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 216224fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 216354e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCInterfaceType(Decl, &Sorted[0], UniqueCount); 216454e14c4db764c0636160d26c5bbf491637c83a76John McCall 216554e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos); 216654e14c4db764c0636160d26c5bbf491637c83a76John McCall } 216754e14c4db764c0636160d26c5bbf491637c83a76John McCall 2168fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor unsigned Size = sizeof(ObjCInterfaceType) 2169fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor + NumProtocols * sizeof(ObjCProtocolDecl *); 2170fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor void *Mem = Allocate(Size, TypeAlignment); 2171fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor ObjCInterfaceType *QType = new (Mem) ObjCInterfaceType(Canonical, 2172fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor const_cast<ObjCInterfaceDecl*>(Decl), 2173fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor Protocols, 2174fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor NumProtocols); 217524fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 217624fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis Types.push_back(QType); 217754e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.InsertNode(QType, InsertPos); 217824fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis return QualType(QType, 0); 217924fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis} 218024fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 218172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 218272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 21839752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 21841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// DeclRefExpr's. This doesn't effect the type checker, since it operates 21859752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 218672564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 2187dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType *toe; 2188b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (tofExpr->isTypeDependent()) { 2189b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor llvm::FoldingSetNodeID ID; 2190b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType::Profile(ID, *this, tofExpr); 21911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2192b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor void *InsertPos = 0; 2193b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType *Canon 2194b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); 2195b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (Canon) { 2196b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // We already have a "canonical" version of an identical, dependent 2197b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // typeof(expr) type. Use that as our canonical type. 21986b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, 2199b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor QualType((TypeOfExprType*)Canon, 0)); 2200b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2201b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor else { 2202b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // Build a new, canonical typeof(expr) type. 22036b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon 22046b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) DependentTypeOfExprType(*this, tofExpr); 2205b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); 2206b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor toe = Canon; 2207b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2208b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } else { 2209dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType Canonical = getCanonicalType(tofExpr->getType()); 22106b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, Canonical); 2211dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 22129752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 22139752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 2214d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2215d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 22169752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 22179752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 22189752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 22191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 22209752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 2221d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 2222f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 22236b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeOfType *tot = new (*this, TypeAlignment) TypeOfType(tofType, Canonical); 22249752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 22259752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 2226d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2227d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 222860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 222960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 223060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 2231a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 2232a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 22331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 223460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 223560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 223660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 223760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 223860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 223960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 224060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 224160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 224260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 224360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 224460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 224560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 224660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 224760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 224860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 22491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 225060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 22511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 225360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 225460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 225560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 22561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 225760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 225860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 225960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 2260395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 2261395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 2262395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 22631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 2264395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 2265395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 2266dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor DecltypeType *dt; 22679d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (e->isTypeDependent()) { 22689d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor llvm::FoldingSetNodeID ID; 22699d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType::Profile(ID, *this, e); 22701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22719d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor void *InsertPos = 0; 22729d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType *Canon 22739d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); 22749d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (Canon) { 22759d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // We already have a "canonical" version of an equivalent, dependent 22769d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // decltype type. Use that as our canonical type. 22776b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, DependentTy, 22789d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor QualType((DecltypeType*)Canon, 0)); 22799d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 22809d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor else { 22819d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // Build a new, canonical typeof(expr) type. 22826b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon = new (*this, TypeAlignment) DependentDecltypeType(*this, e); 22839d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeTypes.InsertNode(Canon, InsertPos); 22849d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor dt = Canon; 22859d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 22869d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } else { 2287dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType T = getDecltypeForExpr(e, *this); 22886b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, T, getCanonicalType(T)); 2289dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 2290395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 2291395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 2292395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 2293395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 22945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 22955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 2296e607ed068334bacb8d7b093996b4671c6ca79e25Mike StumpQualType ASTContext::getTagDeclType(const TagDecl *Decl) { 2297d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 2298e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // FIXME: What is the design on getTagDeclType when it requires casting 2299e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // away const? mutable? 2300e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump return getTypeDeclType(const_cast<TagDecl*>(Decl)); 23015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 23041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 23051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// needs to agree with the definition in <stddef.h>. 2306a3ccda58913cc1a4b8564e349448b12acc462da7Anders CarlssonCanQualType ASTContext::getSizeType() const { 2307b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 23085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 231064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 231164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 231264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 231364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 231464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 231564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 231664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 231764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 231864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 231964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 232064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 232164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 232264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 232364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 23248b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 23258b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 23268b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 2327b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 23288b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 23298b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 2330e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2331e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 2332e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2333e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 233454e14c4db764c0636160d26c5bbf491637c83a76John McCallCanQualType ASTContext::getCanonicalParamType(QualType T) { 233554e14c4db764c0636160d26c5bbf491637c83a76John McCall // Push qualifiers into arrays, and then discard any remaining 233654e14c4db764c0636160d26c5bbf491637c83a76John McCall // qualifiers. 233754e14c4db764c0636160d26c5bbf491637c83a76John McCall T = getCanonicalType(T); 233854e14c4db764c0636160d26c5bbf491637c83a76John McCall const Type *Ty = T.getTypePtr(); 233954e14c4db764c0636160d26c5bbf491637c83a76John McCall 234054e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Result; 234154e14c4db764c0636160d26c5bbf491637c83a76John McCall if (isa<ArrayType>(Ty)) { 234254e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getArrayDecayedType(QualType(Ty,0)); 234354e14c4db764c0636160d26c5bbf491637c83a76John McCall } else if (isa<FunctionType>(Ty)) { 234454e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getPointerType(QualType(Ty, 0)); 234554e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 234654e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = QualType(Ty, 0); 234754e14c4db764c0636160d26c5bbf491637c83a76John McCall } 234854e14c4db764c0636160d26c5bbf491637c83a76John McCall 234954e14c4db764c0636160d26c5bbf491637c83a76John McCall return CanQualType::CreateUnsafe(Result); 235054e14c4db764c0636160d26c5bbf491637c83a76John McCall} 235154e14c4db764c0636160d26c5bbf491637c83a76John McCall 235277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 235377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 235477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 235577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 235677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 235777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 235850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas GregorCanQualType ASTContext::getCanonicalType(QualType T) { 23590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 23600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ptr = Quals.strip(T); 23610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanType = Ptr->getCanonicalTypeInternal(); 23620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 23630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // The canonical internal type will be the canonical type *except* 23640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // that we push type qualifiers down through array types. 23651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If there are no new qualifiers to push down, stop here. 23670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!Quals.hasQualifiers()) 236850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(CanType); 2369c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 23700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the type qualifiers are on an array type, get the canonical 23710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type of the array with the qualifiers applied to the element 23720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type. 2373c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 2374c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 23750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return CanQualType::CreateUnsafe(getQualifiedType(CanType, Quals)); 23761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2377c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2378c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 23790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(AT->getElementType(), Quals); 2380c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 23811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2382c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 238350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 238450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getConstantArrayType(NewEltTy, CAT->getSize(), 238550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor CAT->getSizeModifier(), 23860953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2387c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 238850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 238950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 23900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 23911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2392898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 239350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 239450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getDependentSizedArrayType(NewEltTy, 2395bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2396bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 239750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getSizeModifier(), 23980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 239987a924e37dc40c6e3e2b33d1dbd646aeccf4c15bDouglas Gregor DSAT->getBracketsRange())->getCanonicalTypeInternal()); 2400898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2401c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 240250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(getVariableArrayType(NewEltTy, 2403bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 2404bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr()->Retain() : 0, 240550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getSizeModifier(), 24060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 240750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getBracketsRange())); 2408c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 2409c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 241028e318cc6008c2bc008f0caee70dc736a03d6289Chandler CarruthQualType ASTContext::getUnqualifiedArrayType(QualType T, 241128e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth Qualifiers &Quals) { 24125535c38a2fcface6c13bc8bbeca66882de2fa227Chandler Carruth Quals = T.getQualifiers(); 241328e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (!isa<ArrayType>(T)) { 24145535c38a2fcface6c13bc8bbeca66882de2fa227Chandler Carruth return T.getUnqualifiedType(); 241528e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 241628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 241728e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth const ArrayType *AT = cast<ArrayType>(T); 241828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth QualType Elt = AT->getElementType(); 2419c1ae0a8b0022a9fbb50d3413139f36ec5d8a63beZhongxing Xu QualType UnqualElt = getUnqualifiedArrayType(Elt, Quals); 242028e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (Elt == UnqualElt) 242128e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return T; 242228e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 242328e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(T)) { 242428e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getConstantArrayType(UnqualElt, CAT->getSize(), 242528e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth CAT->getSizeModifier(), 0); 242628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 242728e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 242828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(T)) { 242928e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getIncompleteArrayType(UnqualElt, IAT->getSizeModifier(), 0); 243028e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 243128e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 243228e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth const DependentSizedArrayType *DSAT = cast<DependentSizedArrayType>(T); 243328e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getDependentSizedArrayType(UnqualElt, DSAT->getSizeExpr()->Retain(), 243428e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth DSAT->getSizeModifier(), 0, 243528e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth SourceRange()); 243628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth} 243728e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 243880ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCallDeclarationName ASTContext::getNameForTemplate(TemplateName Name) { 243980ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (TemplateDecl *TD = Name.getAsTemplateDecl()) 244080ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return TD->getDeclName(); 244180ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 244280ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (DependentTemplateName *DTN = Name.getAsDependentTemplateName()) { 244380ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (DTN->isIdentifier()) { 244480ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return DeclarationNames.getIdentifier(DTN->getIdentifier()); 244580ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } else { 244680ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return DeclarationNames.getCXXOperatorName(DTN->getOperator()); 244780ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } 244880ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } 244980ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 24500bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall OverloadedTemplateStorage *Storage = Name.getAsOverloadedTemplate(); 24510bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(Storage); 24520bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall return (*Storage->begin())->getDeclName(); 245380ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall} 245480ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 245525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 245625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 245725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 245825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 245997fbaa2a38804268a024f1a104b43fcf8b4411b0Argyrios Kyrtzidis return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); 246025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 24610bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(!Name.getAsOverloadedTemplate()); 24621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 246325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 246425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 246525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 246625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 246725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 2468db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregorbool ASTContext::hasSameTemplateName(TemplateName X, TemplateName Y) { 2469db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor X = getCanonicalTemplateName(X); 2470db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor Y = getCanonicalTemplateName(Y); 2471db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor return X.getAsVoidPointer() == Y.getAsVoidPointer(); 2472db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor} 2473db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor 24741eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateArgument 24751275ae098acda31fe0e434510c729fcfed0458a1Douglas GregorASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) { 24761275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor switch (Arg.getKind()) { 24771275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Null: 24781275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 24791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24801275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Expression: 24811275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 24821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24831275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Declaration: 2484833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(Arg.getAsDecl()->getCanonicalDecl()); 24851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2486788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor case TemplateArgument::Template: 2487788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor return TemplateArgument(getCanonicalTemplateName(Arg.getAsTemplate())); 2488788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor 24891275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Integral: 2490833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(*Arg.getAsIntegral(), 24911275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getIntegralType())); 24921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24931275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Type: 2494833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(getCanonicalType(Arg.getAsType())); 24951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24961275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Pack: { 24971275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Allocate in ASTContext 24981275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument *CanonArgs = new TemplateArgument[Arg.pack_size()]; 24991275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor unsigned Idx = 0; 25001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (TemplateArgument::pack_iterator A = Arg.pack_begin(), 25011275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor AEnd = Arg.pack_end(); 25021275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor A != AEnd; (void)++A, ++Idx) 25031275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs[Idx] = getCanonicalTemplateArgument(*A); 25041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25051275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument Result; 25061275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Result.setArgumentPack(CanonArgs, Arg.pack_size(), false); 25071275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Result; 25081275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 25091275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 25101275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 25111275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Silence GCC warning 25121275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor assert(false && "Unhandled template argument kind"); 25131275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(); 25141275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor} 25151275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 2516d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 2517d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 25181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!NNS) 2519d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2520d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2521d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 2522d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 2523d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 25241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 2525d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 2526d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 2527d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2528d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 2529d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 2530d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 2531d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 2532d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2533d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 2534d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 2535d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 25361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 0, 25371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 2538d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 2539d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2540d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2541d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 2542d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 2543d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2544d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2545d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2546d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2547d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2548d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2549d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2550c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2551c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2552c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 2553a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor if (!T.hasLocalQualifiers()) { 2554c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2555c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2556c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2557c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 25581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Handle the common negative case fast. 2560c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 25610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!isa<ArrayType>(CType)) 2562c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 25631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Apply any qualifiers from the array type to the element type. This 2565c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2566c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 25671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2568c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2569c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 257050d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor // we must propagate them down into the element type. 25710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 25720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 25730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ty = Qs.strip(T.getDesugaredType()); 25741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2575c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2576c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 25770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ATy == 0 || Qs.empty()) 2578c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 25791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2580c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2581c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2582c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2583c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 25840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(ATy->getElementType(), Qs); 25851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2586c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2587c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2588c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 25890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2590c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2591c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2592c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 25930953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 2594898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 25951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const DependentSizedArrayType *DSAT 2596898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2597898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 25981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getDependentSizedArrayType(NewEltTy, 2599bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2600bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 2601898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 26020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 26037e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 26041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2605c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 26067e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 2607bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 26080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getSizeExpr()->Retain() : 0, 2609c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 26100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 26117e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 261277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 261377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 261477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2615e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2616e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2617e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2618e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2619e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2620e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2621e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2622c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2623c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2624c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2625c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2626c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2627c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 26281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2629c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2630e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2631e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 26320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getQualifiedType(PtrTy, PrettyArrayType->getIndexTypeQualifiers()); 2633e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2634e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 26355e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas GregorQualType ASTContext::getBaseElementType(QualType QT) { 26360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 26375e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor while (true) { 26380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *UT = Qs.strip(QT); 26395e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor if (const ArrayType *AT = getAsArrayType(QualType(UT,0))) { 26405e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QT = AT->getElementType(); 26416dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump } else { 26420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qs.apply(QT); 26435e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 26445e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 26455e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor} 26465e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor 2647fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders CarlssonQualType ASTContext::getBaseElementType(const ArrayType *AT) { 2648fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson QualType ElemTy = AT->getElementType(); 26491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2650fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson if (const ArrayType *AT = getAsArrayType(ElemTy)) 2651fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson return getBaseElementType(AT); 26521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26536183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 26546183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 26556183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 26560de78998e7bda473b408437053e48661b510d453Fariborz Jahanian/// getConstantArrayElementCount - Returns number of constant array elements. 26571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpuint64_t 26580de78998e7bda473b408437053e48661b510d453Fariborz JahanianASTContext::getConstantArrayElementCount(const ConstantArrayType *CA) const { 26590de78998e7bda473b408437053e48661b510d453Fariborz Jahanian uint64_t ElementCount = 1; 26600de78998e7bda473b408437053e48661b510d453Fariborz Jahanian do { 26610de78998e7bda473b408437053e48661b510d453Fariborz Jahanian ElementCount *= CA->getSize().getZExtValue(); 26620de78998e7bda473b408437053e48661b510d453Fariborz Jahanian CA = dyn_cast<ConstantArrayType>(CA->getElementType()); 26630de78998e7bda473b408437053e48661b510d453Fariborz Jahanian } while (CA); 26640de78998e7bda473b408437053e48661b510d453Fariborz Jahanian return ElementCount; 26650de78998e7bda473b408437053e48661b510d453Fariborz Jahanian} 26660de78998e7bda473b408437053e48661b510d453Fariborz Jahanian 26675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 26685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2669a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2670183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) 26715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2672a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2673183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall assert(T->getAs<BuiltinType>() && "getFloatingRank(): not a floating type"); 2674183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall switch (T->getAs<BuiltinType>()->getKind()) { 2675a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 26765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 26775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 26785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 26795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 26815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 26821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 26831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// point or a complex type (based on typeDomain/typeSize). 2684716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2685716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 26861361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 26871361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 26881361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 26891361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 26901361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2691716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2692f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2693f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2694f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2695f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2696f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 26971361b11066239ea15764a2a844405352d87296b3Chris Lattner 26981361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 26991361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 27001361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 27011361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 27021361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 27031361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 27045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 27065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 27077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 27087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 27097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 27101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 2711a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2712a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2713a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 27141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2715a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2716fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2717a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2718fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2719fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 27205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 27215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2722f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2723f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2724f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2725f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2726467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(T->isCanonicalUnqualified() && "T should be canonicalized"); 2727f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2728842aef8d942a880eeb9535d40de31a86838264cbJohn McCall T = ET->getDecl()->getPromotionType().getTypePtr(); 2729f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2730a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2731a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2732a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2733f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2734f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2735f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2736f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2737f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2738f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2739f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 27407cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 27417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2742f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 27437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 27447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 27457cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 27467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2747f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 27487cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 27497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2750f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 27517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 27527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2753f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 27547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 27557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2756f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 27577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 27587cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2759f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 27602df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 27612df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 27622df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2763f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2764f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2765f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 276604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \brief Whether this is a promotable bitfield reference according 276704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// to C99 6.3.1.1p2, bullet 2 (and GCC extensions). 276804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// 276904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \returns the type this bit-field will promote to, or NULL if no 277004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// promotion occurs. 277104e8357f6801e9ff52673e7e899a67bbabf9de93Eli FriedmanQualType ASTContext::isPromotableBitField(Expr *E) { 277204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman FieldDecl *Field = E->getBitField(); 277304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (!Field) 277404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 277504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 277604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman QualType FT = Field->getType(); 277704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 277804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman llvm::APSInt BitWidthAP = Field->getBitWidth()->EvaluateAsInt(*this); 277904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t BitWidth = BitWidthAP.getZExtValue(); 278004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 278104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // GCC extension compatibility: if the bit-field size is less than or equal 278204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // to the size of int, it gets promoted no matter what its type is. 278304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // For instance, unsigned long bf : 4 gets promoted to signed int. 278404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth < IntSize) 278504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return IntTy; 278604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 278704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth == IntSize) 278804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return FT->isSignedIntegerType() ? IntTy : UnsignedIntTy; 278904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 279004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // Types bigger than int are not subject to promotions, and therefore act 279104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // like the base type. 279204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // FIXME: This doesn't quite match what gcc does, but what gcc does here 279304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // is ridiculous. 279404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 279504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman} 279604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 2797a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// getPromotedIntegerType - Returns the type that Promotable will 2798a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// promote to: C99 6.3.1.1p2, assuming that Promotable is a promotable 2799a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// integer type. 2800a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType ASTContext::getPromotedIntegerType(QualType Promotable) { 2801a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(!Promotable.isNull()); 2802a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isPromotableIntegerType()); 2803842aef8d942a880eeb9535d40de31a86838264cbJohn McCall if (const EnumType *ET = Promotable->getAs<EnumType>()) 2804842aef8d942a880eeb9535d40de31a86838264cbJohn McCall return ET->getDecl()->getPromotionType(); 2805a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (Promotable->isSignedIntegerType()) 2806a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return IntTy; 2807a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t PromotableSize = getTypeSize(Promotable); 2808a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 2809a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize); 2810a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return (PromotableSize != IntSize) ? IntTy : UnsignedIntTy; 2811a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 2812a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 28131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getIntegerTypeOrder - Returns the highest ranked integer type: 28147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 28151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 28167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2817f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2818f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 28197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 28201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2821f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2822f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 28231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 28257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 28261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 28287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 28297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 28307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 28311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 28337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 28347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 28357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 28367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 28371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 28397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 28401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 28417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 28427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 28437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 28447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 28457cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 28467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 28471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28487cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 28497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 28501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 28517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 28525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 285371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 285479cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlssonstatic RecordDecl * 285579cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders CarlssonCreateRecordDecl(ASTContext &Ctx, RecordDecl::TagKind TK, DeclContext *DC, 285679cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson SourceLocation L, IdentifierInfo *Id) { 285779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson if (Ctx.getLangOptions().CPlusPlus) 285879cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson return CXXRecordDecl::Create(Ctx, TK, DC, L, Id); 285979cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson else 286079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson return RecordDecl::Create(Ctx, TK, DC, L, Id); 286179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson} 286279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson 28631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// getCFConstantStringType - Return the type used for constant CFStrings. 286471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 286571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 28661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CFConstantStringTypeDecl = 286779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 286879cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("NSConstantString")); 28695cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall CFConstantStringTypeDecl->startDefinition(); 287079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson 2871f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 28721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 287371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 28740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[0] = getPointerType(IntTy.withConst()); 2875f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2876f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 287771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 28780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[2] = getPointerType(CharTy.withConst()); 287971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 28801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[3] = LongTy; 28811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 288244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 288344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 28841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 288544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 2886a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 28871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 28884afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 288917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 289044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 289144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2892838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor CFConstantStringTypeDecl->completeDefinition(); 289371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 28941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 289571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 28968467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2897b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2898319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 28996217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2900319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2901319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2902319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2903319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 29041eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getObjCFastEnumerationStateType() { 2905bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 290644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 290779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 290879cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__objcFastEnumerationState")); 29095cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall ObjCFastEnumerationStateTypeDecl->startDefinition(); 29101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2911bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2912bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2913de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff getPointerType(ObjCIdTypedefType), 2914bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2915bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2916bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2917bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 29181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 291944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 29201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, 29211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCFastEnumerationStateTypeDecl, 29221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation(), 0, 2923a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 29241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 29254afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 292617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 292744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 29281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2929838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(); 2930bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 29311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2932bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2933bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2934bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2935adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike StumpQualType ASTContext::getBlockDescriptorType() { 2936adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump if (BlockDescriptorType) 2937adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 2938adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2939adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 2940adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Needs the FlagAppleBlock bit. 294179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 294279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__block_descriptor")); 29435cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 2944adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2945adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 2946adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2947adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 2948adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2949adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2950adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 2951adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "reserved", 2952083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size" 2953adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 2954adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2955adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 2; ++i) { 2956adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldDecl *Field = FieldDecl::Create(*this, 2957adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T, 2958adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump SourceLocation(), 2959adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 2960a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 2961adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*BitWidth=*/0, 2962adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*Mutable=*/false); 2963adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 2964adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 2965adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2966838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 2967adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2968adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = T; 2969adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2970adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 2971adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 2972adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2973adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stumpvoid ASTContext::setBlockDescriptorType(QualType T) { 2974adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const RecordType *Rec = T->getAs<RecordType>(); 2975adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump assert(Rec && "Invalid BlockDescriptorType"); 2976adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = Rec->getDecl(); 2977adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 2978adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 2979083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike StumpQualType ASTContext::getBlockDescriptorExtendedType() { 2980083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump if (BlockDescriptorExtendedType) 2981083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 2982083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2983083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump RecordDecl *T; 2984083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump // FIXME: Needs the FlagAppleBlock bit. 298579cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 298679cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__block_descriptor_withcopydispose")); 29875cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 2988083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2989083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump QualType FieldTypes[] = { 2990083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 2991083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 2992083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy), 2993083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy) 2994083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 2995083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 2996083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const char *FieldNames[] = { 2997083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "reserved", 2998083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size", 2999083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "CopyFuncPtr", 3000083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "DestroyFuncPtr" 3001083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 3002083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3003083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump for (size_t i = 0; i < 4; ++i) { 3004083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump FieldDecl *Field = FieldDecl::Create(*this, 3005083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T, 3006083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump SourceLocation(), 3007083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump &Idents.get(FieldNames[i]), 3008a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3009083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*BitWidth=*/0, 3010083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*Mutable=*/false); 3011083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T->addDecl(Field); 3012083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump } 3013083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3014838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3015083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3016083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = T; 3017083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3018083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 3019083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 3020083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3021083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stumpvoid ASTContext::setBlockDescriptorExtendedType(QualType T) { 3022083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const RecordType *Rec = T->getAs<RecordType>(); 3023083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump assert(Rec && "Invalid BlockDescriptorType"); 3024083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = Rec->getDecl(); 3025083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 3026083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3027af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stumpbool ASTContext::BlockRequiresCopying(QualType Ty) { 3028af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isBlockPointerType()) 3029af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3030af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (isObjCNSObjectType(Ty)) 3031af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3032af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isObjCObjectPointerType()) 3033af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3034af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return false; 3035af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump} 3036af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3037af7b44d847d3e44c43346d508b2e55a6254b6e9dMike StumpQualType ASTContext::BuildByRefType(const char *DeclName, QualType Ty) { 3038af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // type = struct __Block_byref_1_X { 3039ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // void *__isa; 3040af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // struct __Block_byref_1_X *__forwarding; 3041ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __flags; 3042ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __size; 304338e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__copy_helper; // as needed 304438e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__destroy_help // as needed 3045af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // int X; 3046ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // } * 3047ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3048af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump bool HasCopyAndDispose = BlockRequiresCopying(Ty); 3049af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3050af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // FIXME: Move up 30514d0d85c3370f2726c74ba0ece0a5e712830a1d82Fariborz Jahanian static unsigned int UniqueBlockByRefTypeID = 0; 3052f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 3053f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__Block_byref_" << 3054f5942a44880be26878592eb052b737579349411eBenjamin Kramer ++UniqueBlockByRefTypeID << '_' << DeclName; 3055af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump RecordDecl *T; 305679cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 305779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get(Name.str())); 3058af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->startDefinition(); 3059af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType Int32Ty = IntTy; 3060af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump assert(getIntWidth(IntTy) == 32 && "non-32bit int not supported"); 3061af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType FieldTypes[] = { 3062af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3063af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(getTagDeclType(T)), 3064af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 3065af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 3066af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3067af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3068af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Ty 3069af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 3070af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3071af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump const char *FieldNames[] = { 3072af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__isa", 3073af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__forwarding", 3074af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__flags", 3075af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__size", 3076af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__copy_helper", 3077af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__destroy_helper", 3078af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump DeclName, 3079af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 3080af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3081af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump for (size_t i = 0; i < 7; ++i) { 3082af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (!HasCopyAndDispose && i >=4 && i <= 5) 3083af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump continue; 3084af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3085af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump &Idents.get(FieldNames[i]), 3086a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3087af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump /*BitWidth=*/0, /*Mutable=*/false); 3088af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->addDecl(Field); 3089af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump } 3090af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3091838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3092af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3093af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return getPointerType(getTagDeclType(T)); 3094ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump} 3095ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3096ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3097ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike StumpQualType ASTContext::getBlockParmType( 3098083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump bool BlockHasCopyDispose, 3099ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump llvm::SmallVector<const Expr *, 8> &BlockDeclRefDecls) { 3100adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Move up 31014d0d85c3370f2726c74ba0ece0a5e712830a1d82Fariborz Jahanian static unsigned int UniqueBlockParmTypeID = 0; 3102f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 3103f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__block_literal_" 3104f5942a44880be26878592eb052b737579349411eBenjamin Kramer << ++UniqueBlockParmTypeID; 3105adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 310679cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 310779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get(Name.str())); 31085cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 3109adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 3110adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 3111adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 3112adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 3113adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 3114083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump (BlockHasCopyDispose ? 3115083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorExtendedType()) : 3116083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorType())) 3117adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3118adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3119adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 3120adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__isa", 3121adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__flags", 3122adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__reserved", 3123adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__FuncPtr", 3124adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__descriptor" 3125adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3126adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3127adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 5; ++i) { 3128ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3129adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 3130a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3131ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 3132ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump T->addDecl(Field); 3133ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3134ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3135ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump for (size_t i = 0; i < BlockDeclRefDecls.size(); ++i) { 3136ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const Expr *E = BlockDeclRefDecls[i]; 3137ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(E); 3138ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump clang::IdentifierInfo *Name = 0; 3139ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE) { 3140ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const ValueDecl *D = BDRE->getDecl(); 3141ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump Name = &Idents.get(D->getName()); 3142ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3143ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump QualType FieldType = E->getType(); 3144ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3145ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE && BDRE->isByRef()) 3146af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType = BuildByRefType(BDRE->getDecl()->getNameAsCString(), 3147af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType); 3148ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3149ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3150a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Name, FieldType, /*TInfo=*/0, 3151ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 3152adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 3153adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 3154adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3155838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3156ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3157ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump return getPointerType(getTagDeclType(T)); 3158adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3159adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3160319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 31616217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 3162319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 3163319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 3164319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 3165319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3166e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 3167e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 31682d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 3169e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 3170bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 3171bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 31721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 317385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 317485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 317585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 3176a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 317733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 3178aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen DyckCharUnits ASTContext::getObjCEncodingTypeSize(QualType type) { 3179199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits sz = getTypeSizeInChars(type); 31801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 318133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 3182199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck if (sz.isPositive() && type->isIntegralType()) 3183199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck sz = std::max(sz, getTypeSizeInChars(IntTy)); 318433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 318533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 3186199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck sz = getTypeSizeInChars(VoidPtrTy); 3187aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck return sz; 3188199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck} 3189199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck 3190199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyckstatic inline 3191199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyckstd::string charUnitsToString(const CharUnits &CU) { 3192199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return llvm::itostr(CU.getQuantity()); 319333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 319433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 31955e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall/// getObjCEncodingForBlockDecl - Return the encoded type for this method 31965e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall/// declaration. 31975e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnallvoid ASTContext::getObjCEncodingForBlock(const BlockExpr *Expr, 31985e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall std::string& S) { 31995e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall const BlockDecl *Decl = Expr->getBlockDecl(); 32005e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType BlockTy = 32015e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall Expr->getType()->getAs<BlockPointerType>()->getPointeeType(); 32025e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Encode result type. 32035e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall getObjCEncodingForType(cast<FunctionType>(BlockTy)->getResultType(), S); 32045e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Compute size of all parameters. 32055e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Start with computing size of a pointer in number of bytes. 32065e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // FIXME: There might(should) be a better way of doing this computation! 32075e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall SourceLocation Loc; 3208199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); 3209199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits ParmOffset = PtrSize; 32105e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 32115e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall E = Decl->param_end(); PI != E; ++PI) { 32125e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType PType = (*PI)->getType(); 3213aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck CharUnits sz = getObjCEncodingTypeSize(PType); 3214199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck assert (sz.isPositive() && "BlockExpr - Incomplete param type"); 32155e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset += sz; 32165e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } 32175e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Size of the argument frame 3218199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 32195e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Block pointer and offset. 32205e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall S += "@?0"; 32215e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset = PtrSize; 32225e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall 32235e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Argument types. 32245e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset = PtrSize; 32255e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall for (BlockDecl::param_const_iterator PI = Decl->param_begin(), E = 32265e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall Decl->param_end(); PI != E; ++PI) { 32275e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmVarDecl *PVDecl = *PI; 32285e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType PType = PVDecl->getOriginalType(); 32295e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall if (const ArrayType *AT = 32305e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 32315e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Use array's original type only if it has known number of 32325e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // elements. 32335e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall if (!isa<ConstantArrayType>(AT)) 32345e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall PType = PVDecl->getType(); 32355e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } else if (PType->isFunctionType()) 32365e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall PType = PVDecl->getType(); 32375e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall getObjCEncodingForType(PType, S); 3238199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 3239aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck ParmOffset += getObjCEncodingTypeSize(PType); 32405e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } 32415e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall} 32425e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall 3243a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 324433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 32451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 3246e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3247c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3248ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 3249a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 325033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 32510d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 325233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 325333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 325433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 325533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 3256199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); 325733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 325833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 3259199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits ParmOffset = 2 * PtrSize; 326089951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 326189951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 326289951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 3263aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck CharUnits sz = getObjCEncodingTypeSize(PType); 3264199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck assert (sz.isPositive() && 3265199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck "getObjCEncodingForMethodDecl - Incomplete param type"); 326633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 326733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 3268199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 326933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 3270199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(PtrSize); 32711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 327233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 327333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 327489951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 327589951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 327689951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 32771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType PType = PVDecl->getOriginalType(); 32784306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 3279ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 3280ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 3281ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 3282bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 3283ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3284ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 3285ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3286ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 328733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 32884306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 32890d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 3290199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 3291aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck ParmOffset += getObjCEncodingTypeSize(PType); 329233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 329333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 329433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 3295c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 329683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 3297c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 3298c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 32991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Property attributes are stored as a comma-delimited C string. The simple 33001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// attributes readonly and bycopy are encoded as single characters. The 33011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parametrized attributes, getter=name, setter=name, and ivar=name, are 33021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// encoded as single characters, followed by an identifier. Property types 33031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// are also encoded as a parametrized attribute. The characters used to encode 330483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 330583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 330683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 330783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 330883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 330983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 331083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 331183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 331283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 331383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 331483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 331583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 331683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 331783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 331883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 331983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 33201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 3321c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 3322e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3323c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 3324c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 3325c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 3326c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3327c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 3328c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 33291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCCategoryImplDecl *CID = 3330c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 3331c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 333217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 3333653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3334c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3335c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3336c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3337c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3338c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3339c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3340c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3341c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3342c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3343c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 334461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 3345c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 334617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 3347653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3348c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3349c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3350c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3351c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3352c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3353c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3354c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3355c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 33561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3357c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3358c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3359c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3360c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3361c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 3362c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3363c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 3364090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 3365090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 33661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 3367090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 3368090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 3369c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3370c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 3371c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 3372c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3373c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 3374c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 3375c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 33761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case ObjCPropertyDecl::Retain: S += ",&"; break; 3377c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3378c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3379c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3380c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 3381c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 3382c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 3383c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 3384c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3385090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 3386090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 33871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3388c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 3389c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 3390077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 3391c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3392c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3393c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 3394c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 3395077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 3396c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3397c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3398c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 3399c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 3400c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 340139f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 3402c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3403c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3404c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 3405c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 3406c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3407a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 34081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Another legacy compatibility encoding: 32-bit longs are encoded as 34091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 'l' or 'L' , but not always. For typedefs, we need to use 3410a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 3411a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 3412a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 34138e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(PointeeTy.getTypePtr())) { 3414183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = PointeeTy->getAs<BuiltinType>()) { 3415c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 3416c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3417a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 34181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else 3419c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 3420c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3421a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 3422a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3423a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3424a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 3425a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 34267d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 3427153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 342882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 342982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 343082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 343182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 34321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(T, S, true, true, Field, 34335b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 343482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 343582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 34361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void EncodeBitField(const ASTContext *Context, std::string& S, 3437153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 34388b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 34398b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 34408b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 34419a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 34428b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 34438b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 34448b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 34458b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 344601eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar// FIXME: Use SmallString for accumulating string. 344782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 344882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 344982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 3450153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 3451090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 34526ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 3453183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = T->getAs<BuiltinType>()) { 3454ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD && FD->isBitField()) 3455ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return EncodeBitField(this, S, FD); 3456ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner char encoding; 3457ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner switch (BT->getKind()) { 34581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: assert(0 && "Unhandled builtin type kind"); 3459ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 3460ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 3461ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_U: 3462ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 3463ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 3464ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 34651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::ULong: 34661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 34671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 346872696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 3469ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 3470ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 3471ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_S: 3472ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 3473ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Short: encoding = 's'; break; 3474ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 34751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::Long: 34761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 34771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 3478ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner break; 3479ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 3480ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 3481ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 3482ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 3483ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 348443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 34851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3486ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += encoding; 3487ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3488ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 34891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3490183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) { 3491c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 34921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 3493c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 3494ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3495ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 349660bce3ef20a4c9684e3825cdd739fefb9810327dFariborz Jahanian 34976217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const PointerType *PT = T->getAs<PointerType>()) { 34988d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian if (PT->isObjCSelType()) { 34998d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian S += ':'; 35008d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian return; 35018d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian } 350285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 35038d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian 3504a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 3505a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 3506a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 3507a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 35081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Also, do not emit the 'r' for anything but the outermost type! 35098e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(T.getTypePtr())) { 3510a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 3511a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3512a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3513a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 35149fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (OutermostType) { 3515a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 35166217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek while (P->getAs<PointerType>()) 35176217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek P = P->getAs<PointerType>()->getPointeeType(); 3518a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 3519a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3520a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3521a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3522a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3523a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 3524a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 3525a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 3526a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 3527a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 3528a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 3529a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 3530a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 3531a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 3532a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3533a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 35341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 353585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 353685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 353785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 3538e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 353985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 354085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 354185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 35426217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek } else if (const RecordType *RTy = PointeeTy->getAs<RecordType>()) { 35439533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_class *" to "#". 35449533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { 35459533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '#'; 35469533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 35479533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 35489533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_object *" to "@". 35499533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { 35509533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '@'; 35519533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 35529533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 35539533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // fall through... 355485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 355585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 3556a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 3557a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 35581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 355943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 3560ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3561ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3563ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ArrayType *AT = 3564ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Ignore type qualifiers etc. 3565ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 3566559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 3567559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 3568559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 3569559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 35701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3571559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3572559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 3573559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 35741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3575559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 3576559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 3577559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 3578559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 3579559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 3580559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 3581559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 35821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3584559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3585559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 3586559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 3587ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3588ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3590183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (T->getAs<FunctionType>()) { 3591c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 3592ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3593ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 35941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35956217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *RTy = T->getAs<RecordType>()) { 359682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 3597d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 3598502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 3599502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 3600502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 3601502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 3602502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 3603502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 36040d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 36057d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 360617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 360717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 360844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 360943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 3610d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 361144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 3612d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 3613d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 36141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3615d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 361643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 36171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 361843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 3619d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 3620a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 3621a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 36221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(qt, S, false, true, 362343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 3624d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 36257d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 36266de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 3627d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 3628ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3629ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3631ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isEnumeralType()) { 36328b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 36338b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 36348b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 36358b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 3636ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3637ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3639ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isBlockPointerType()) { 364021a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 3641ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3642ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (const ObjCInterfaceType *OIT = T->getAs<ObjCInterfaceType>()) { 364543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 36460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ObjCInterfaceDecl *OI = OIT->getDecl(); 364743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 364843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 364943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 365043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 3651f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 365243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 3653f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 365443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 36551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 365643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 365743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 36581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 365943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 366043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 366143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 3662ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 366343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 36641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3665183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = T->getAs<ObjCObjectPointerType>()) { 366614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (OPT->isObjCIdType()) { 366714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '@'; 366814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3669ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 367127d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->isObjCClassType() || OPT->isObjCQualifiedClassType()) { 367227d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // FIXME: Consider if we need to output qualifiers for 'Class<p>'. 367327d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // Since this is a binary compatibility issue, need to consult with runtime 367427d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // folks. Fortunately, this is a *very* obsure construct. 367514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '#'; 367614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3677ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3679ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCQualifiedIdType()) { 36801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(getObjCIdType(), S, 368114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandPointedToStructures, 368214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandStructures, FD); 368314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (FD || EncodingProperty) { 368414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Note that we do extended encoding of protocol qualifer list 368514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Only when doing ivar or property encoding. 368614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 368767ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 368867ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 368914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '<'; 369014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += (*I)->getNameAsString(); 369114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '>'; 369214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 369314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 369414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 369514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3696ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3698ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner QualType PointeeTy = OPT->getPointeeType(); 3699ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (!EncodingProperty && 3700ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner isa<TypedefType>(PointeeTy.getTypePtr())) { 3701ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Another historical/compatibility reason. 37021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We encode the underlying type which comes out as 3703ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // {...}; 3704ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '^'; 37051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, 37061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump false, ExpandPointedToStructures, 3707ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner NULL); 370814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 370914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 3710ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3711ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '@'; 371227d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->getInterfaceDecl() && (FD || EncodingProperty)) { 3713ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 371427d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff S += OPT->getInterfaceDecl()->getIdentifier()->getName(); 371567ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 371667ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 3717ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '<'; 3718ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += (*I)->getNameAsString(); 3719ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '>'; 37201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3721ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 3722ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3723ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3724ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3726ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner assert(0 && "@encode for type not implemented!"); 372785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 372885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 37291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 3730ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 3731ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 3732ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 3733ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 3734ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 3735ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 3736ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 3737ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 3738ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 3739ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 3740ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 3741ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 3742ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 3743ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 3744ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 3745ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setBuiltinVaListType(QualType T) { 3746b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 37471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3748b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 3749b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 3750b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3751ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCIdType(QualType T) { 3752de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = T; 37537e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 37547e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 3755ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCSelType(QualType T) { 375613dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian ObjCSelTypedefType = T; 3757b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 3758b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3759ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCProtoType(QualType QT) { 3760a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 3761390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 3762390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 3763ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCClassType(QualType T) { 3764de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = T; 37658baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 37668baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3767a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 37681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(ObjCConstantStringType.isNull() && 37692198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 37701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3771a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 37722198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 37732198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 37740bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall/// \brief Retrieve the template name that corresponds to a non-empty 37750bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall/// lookup. 3776eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCallTemplateName ASTContext::getOverloadedTemplateName(UnresolvedSetIterator Begin, 3777eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCall UnresolvedSetIterator End) { 37780bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall unsigned size = End - Begin; 37790bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(size > 1 && "set is not overloaded!"); 37807532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 37810bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall void *memory = Allocate(sizeof(OverloadedTemplateStorage) + 37820bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall size * sizeof(FunctionTemplateDecl*)); 37830bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall OverloadedTemplateStorage *OT = new(memory) OverloadedTemplateStorage(size); 37840bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall 37850bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl **Storage = OT->getStorage(); 3786eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCall for (UnresolvedSetIterator I = Begin; I != End; ++I) { 37870bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl *D = *I; 37880bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(isa<FunctionTemplateDecl>(D) || 37890bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall (isa<UsingShadowDecl>(D) && 37900bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))); 37910bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall *Storage++ = D; 37927532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 37937532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 37940bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall return TemplateName(OT); 37957532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 37967532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3797d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// \brief Retrieve the template name that represents a qualified 3798d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// template name such as \c std::vector. 37991eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 3800d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor bool TemplateKeyword, 38010bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall TemplateDecl *Template) { 3802789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor // FIXME: Canonicalization? 3803d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor llvm::FoldingSetNodeID ID; 3804d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 38051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3806d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor void *InsertPos = 0; 3807d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName *QTN = 38080bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3809d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor if (!QTN) { 3810d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 3811d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 3812d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor } 38131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3814d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor return TemplateName(QTN); 3815d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor} 3816d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 38177532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 38187532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 38191eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 38207532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 38211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((!NNS || NNS->isDependent()) && 38223b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor "Nested name specifier must be dependent"); 38237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38247532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 38257532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 38267532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38277532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 38287532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 38297532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 38307532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38317532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 38327532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 38337532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38347532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 38357532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 38367532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 38377532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 38387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 38397532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 3840789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *CheckQTN = 3841789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3842789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckQTN && "Dependent type name canonicalization broken"); 3843789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckQTN; 38447532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 38457532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 38467532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 38477532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 38487532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 38497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3850ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Retrieve the template name that represents a dependent 3851ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// template name such as \c MetaFun::template operator+. 3852ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorTemplateName 3853ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 3854ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor OverloadedOperatorKind Operator) { 3855ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor assert((!NNS || NNS->isDependent()) && 3856ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor "Nested name specifier must be dependent"); 3857ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3858ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor llvm::FoldingSetNodeID ID; 3859ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateName::Profile(ID, NNS, Operator); 3860ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3861ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor void *InsertPos = 0; 3862789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *QTN 3863789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3864ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3865ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (QTN) 3866ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 3867ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3868ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 3869ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (CanonNNS == NNS) { 3870ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator); 3871ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 3872ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Operator); 3873ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator, Canon); 3874789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 3875789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *CheckQTN 3876789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3877789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckQTN && "Dependent template name canonicalization broken"); 3878789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckQTN; 3879ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 3880ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3881ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 3882ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 3883ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor} 3884ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 3885b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 3886d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 3887d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 3888e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallCanQualType ASTContext::getFromTargetType(unsigned Type) const { 3889b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 3890e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall case TargetInfo::NoInt: return CanQualType(); 3891b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 3892b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 3893b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 3894b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 3895b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 3896b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 3897b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 3898b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 3899b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 3900b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 3901b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 3902e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall return CanQualType(); 3903b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 3904b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3905b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3906b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 3907b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 3908b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 3909fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 3910fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 3911fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 3912f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff/// FIXME: Move to Type. 3913fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 3914fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 3915fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 3916fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 391740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 3918fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 3919fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 39201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return false; 3921fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 3922fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 39234fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 39244fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 39254fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 39260953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualifiers::GC ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 39270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttrs = Qualifiers::GCNone; 39284fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 39294fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 3930b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 39314fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 39321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // (or pointers to them) be treated as though they were declared 3933a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 39340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GCAttrs == Qualifiers::GCNone) { 393575212ee91313bc1b6dd826d9b173541bc4016539Fariborz Jahanian if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) 39360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttrs = Qualifiers::Strong; 3937a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 39386217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek return getObjCGCAttrKind(Ty->getAs<PointerType>()->getPointeeType()); 3939a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 3940c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 3941c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 3942f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 39430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qualifiers::GCNone; 39444fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 3945b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 39464fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 39474fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 39486ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 39496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 39506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 3951770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 39521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// areCompatVectorTypes - Return true if the two specified vector types are 39536ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 39546ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 39556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 3956467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified()); 39576ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 395861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 39596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 39606ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 39614084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 39624084c306635b70f37029dca938444e6013f08684Steve Naroff// ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. 39634084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 39644084c306635b70f37029dca938444e6013f08684Steve Naroff 39654084c306635b70f37029dca938444e6013f08684Steve Naroff/// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the 39664084c306635b70f37029dca938444e6013f08684Steve Naroff/// inheritance hierarchy of 'rProto'. 39670fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanianbool ASTContext::ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, 39680fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian ObjCProtocolDecl *rProto) { 39694084c306635b70f37029dca938444e6013f08684Steve Naroff if (lProto == rProto) 397014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return true; 39714084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCProtocolDecl::protocol_iterator PI = rProto->protocol_begin(), 39724084c306635b70f37029dca938444e6013f08684Steve Naroff E = rProto->protocol_end(); PI != E; ++PI) 39734084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 39744084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 39754084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 39764084c306635b70f37029dca938444e6013f08684Steve Naroff} 397714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 39784084c306635b70f37029dca938444e6013f08684Steve Naroff/// QualifiedIdConformsQualifiedId - compare id<p,...> with id<p1,...> 39794084c306635b70f37029dca938444e6013f08684Steve Naroff/// return true if lhs's protocols conform to rhs's protocol; false 39804084c306635b70f37029dca938444e6013f08684Steve Naroff/// otherwise. 39814084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::QualifiedIdConformsQualifiedId(QualType lhs, QualType rhs) { 39824084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isObjCQualifiedIdType() && rhs->isObjCQualifiedIdType()) 39834084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(lhs, rhs, false); 39844084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 39854084c306635b70f37029dca938444e6013f08684Steve Naroff} 39864084c306635b70f37029dca938444e6013f08684Steve Naroff 39874084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an 39884084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIDType. 39894084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::ObjCQualifiedIdTypesAreCompatible(QualType lhs, QualType rhs, 39904084c306635b70f37029dca938444e6013f08684Steve Naroff bool compare) { 39914084c306635b70f37029dca938444e6013f08684Steve Naroff // Allow id<P..> and an 'id' or void* type in all cases. 39921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isVoidPointerType() || 39934084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->isObjCIdType() || lhs->isObjCClassType()) 39944084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 39951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else if (rhs->isVoidPointerType() || 39964084c306635b70f37029dca938444e6013f08684Steve Naroff rhs->isObjCIdType() || rhs->isObjCClassType()) 39974084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 39984084c306635b70f37029dca938444e6013f08684Steve Naroff 39994084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsQID = lhs->getAsObjCQualifiedIdType()) { 4000183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *rhsOPT = rhs->getAs<ObjCObjectPointerType>(); 40011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40024084c306635b70f37029dca938444e6013f08684Steve Naroff if (!rhsOPT) return false; 40031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40044084c306635b70f37029dca938444e6013f08684Steve Naroff if (rhsOPT->qual_empty()) { 40051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a unqualified interface pointer "NSString*", 40064084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 40074084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 40084084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 40094084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 40104084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 40114084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 40124084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 40130fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (!rhsID->ClassImplementsProtocol(*I, true)) 40144084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40154084c306635b70f37029dca938444e6013f08684Steve Naroff } 40164084c306635b70f37029dca938444e6013f08684Steve Naroff } 40174084c306635b70f37029dca938444e6013f08684Steve Naroff // If there are no qualifiers and no interface, we have an 'id'. 40184084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40194084c306635b70f37029dca938444e6013f08684Steve Naroff } 40201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 40214084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 40224084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 40234084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 40244084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 4025de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 4026de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // when comparing an id<P> on lhs with a static type on rhs, 4027de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // see if static class implements all of id's protocols, directly or 4028de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // through its super class and categories. 40294084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsOPT->qual_begin(), 40304084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsOPT->qual_end(); J != E; ++J) { 40314084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 40324084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 40334084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 40344084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 40358f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 40368f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 4037de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 40381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a qualified interface pointer "NSString<P>*", 40394084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 40404084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 40414084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 40424084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 40434084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 40444084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 40454084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 40460fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (rhsID->ClassImplementsProtocol(*I, true)) { 40474084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 40484084c306635b70f37029dca938444e6013f08684Steve Naroff break; 40494084c306635b70f37029dca938444e6013f08684Steve Naroff } 40504084c306635b70f37029dca938444e6013f08684Steve Naroff } 40514084c306635b70f37029dca938444e6013f08684Steve Naroff } 40524084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 4053de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return false; 4054de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 40551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4056de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return true; 4057de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 40581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40594084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsQID = rhs->getAsObjCQualifiedIdType(); 40604084c306635b70f37029dca938444e6013f08684Steve Naroff assert(rhsQID && "One of the LHS/RHS should be id<x>"); 40614084c306635b70f37029dca938444e6013f08684Steve Naroff 40621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCObjectPointerType *lhsOPT = 40634084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->getAsObjCInterfacePointerType()) { 40644084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhsOPT->qual_empty()) { 40654084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 40664084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *lhsID = lhsOPT->getInterfaceDecl()) { 40674084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = rhsQID->qual_begin(), 40684084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); I != E; ++I) { 40694084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 40704084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 40714084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 40720fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (lhsID->ClassImplementsProtocol(*I, true)) { 40734084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 40744084c306635b70f37029dca938444e6013f08684Steve Naroff break; 40754084c306635b70f37029dca938444e6013f08684Steve Naroff } 40764084c306635b70f37029dca938444e6013f08684Steve Naroff } 40774084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 40784084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 40794084c306635b70f37029dca938444e6013f08684Steve Naroff } 40804084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 40814084c306635b70f37029dca938444e6013f08684Steve Naroff } 40821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 40834084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsOPT->qual_begin(), 40844084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsOPT->qual_end(); I != E; ++I) { 40854084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 40864084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 40874084c306635b70f37029dca938444e6013f08684Steve Naroff 40884084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 40894084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 40904084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 40914084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsQID->qual_begin(), 40924084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); J != E; ++J) { 40934084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 40944084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 40954084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 40964084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 40974084c306635b70f37029dca938444e6013f08684Steve Naroff break; 40984084c306635b70f37029dca938444e6013f08684Steve Naroff } 40994084c306635b70f37029dca938444e6013f08684Steve Naroff } 41004084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 41014084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 41024084c306635b70f37029dca938444e6013f08684Steve Naroff } 41034084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 41044084c306635b70f37029dca938444e6013f08684Steve Naroff } 41054084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 41064084c306635b70f37029dca938444e6013f08684Steve Naroff} 41074084c306635b70f37029dca938444e6013f08684Steve Naroff 41084084c306635b70f37029dca938444e6013f08684Steve Naroff/// canAssignObjCInterfaces - Return true if the two interface types are 41094084c306635b70f37029dca938444e6013f08684Steve Naroff/// compatible for assignment from RHS to LHS. This handles validation of any 41104084c306635b70f37029dca938444e6013f08684Steve Naroff/// protocol qualifiers on the LHS or RHS. 41114084c306635b70f37029dca938444e6013f08684Steve Naroff/// 41124084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 41134084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *RHSOPT) { 41144084c306635b70f37029dca938444e6013f08684Steve Naroff // If either type represents the built-in 'id' or 'Class' types, return true. 41154084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCBuiltinType() || RHSOPT->isObjCBuiltinType()) 41164084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 41174084c306635b70f37029dca938444e6013f08684Steve Naroff 41184084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 41191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 41201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType(RHSOPT,0), 41214084c306635b70f37029dca938444e6013f08684Steve Naroff false); 41224084c306635b70f37029dca938444e6013f08684Steve Naroff 41234084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 41244084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 41254084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHS && RHS) // We have 2 user-defined types. 41264084c306635b70f37029dca938444e6013f08684Steve Naroff return canAssignObjCInterfaces(LHS, RHS); 41271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41284084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 412914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 413014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4131132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// canAssignObjCInterfacesInBlockPointer - This routine is specifically written 4132132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// for providing type-safty for objective-c pointers used to pass/return 4133132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// arguments in block literals. When passed as arguments, passing 'A*' where 4134132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// 'id' is expected is not OK. Passing 'Sub *" where 'Super *" is expected is 4135132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// not OK. For the return type, the opposite is not OK. 4136132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanianbool ASTContext::canAssignObjCInterfacesInBlockPointer( 4137132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4138132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian const ObjCObjectPointerType *RHSOPT) { 4139132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (RHSOPT->isObjCBuiltinType()) 4140132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return true; 4141132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4142132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (LHSOPT->isObjCBuiltinType()) { 4143132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return RHSOPT->isObjCBuiltinType() || RHSOPT->isObjCQualifiedIdType(); 4144132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4145132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4146132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 4147132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 4148132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian QualType(RHSOPT,0), 4149132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian false); 4150132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4151132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4152132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4153132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (LHS && RHS) { // We have 2 user-defined types. 4154132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (LHS != RHS) { 4155132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 4156132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return false; 4157132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (RHS->getDecl()->isSuperClassOf(LHS->getDecl())) 4158132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return true; 4159132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4160132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian else 4161132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return true; 4162132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4163132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return false; 4164132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian} 4165132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4166e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// getIntersectionOfProtocols - This routine finds the intersection of set 4167e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// of protocols inherited from two distinct objective-c pointer objects. 4168e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// It is used to build composite qualifier list of the composite type of 4169e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// the conditional expression involving two objective-c pointer objects. 4170e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianstatic 4171e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid getIntersectionOfProtocols(ASTContext &Context, 4172e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4173e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *RHSOPT, 4174e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVectorImpl<ObjCProtocolDecl *> &IntersectionOfProtocols) { 4175e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4176e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4177e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4178e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4179e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> InheritedProtocolSet; 4180e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned LHSNumProtocols = LHS->getNumProtocols(); 4181e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (LHSNumProtocols > 0) 4182e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHS->qual_begin(), LHS->qual_end()); 4183e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 4184432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> LHSInheritedProtocols; 4185432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Context.CollectInheritedProtocols(LHS->getDecl(), LHSInheritedProtocols); 4186e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHSInheritedProtocols.begin(), 4187e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSInheritedProtocols.end()); 4188e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4189e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4190e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned RHSNumProtocols = RHS->getNumProtocols(); 4191e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (RHSNumProtocols > 0) { 4192e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl **RHSProtocols = (ObjCProtocolDecl **)RHS->qual_begin(); 4193e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (unsigned i = 0; i < RHSNumProtocols; ++i) 4194e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (InheritedProtocolSet.count(RHSProtocols[i])) 4195e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.push_back(RHSProtocols[i]); 4196e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4197e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 4198432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> RHSInheritedProtocols; 4199e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Context.CollectInheritedProtocols(RHS->getDecl(), RHSInheritedProtocols); 4200432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian for (llvm::SmallPtrSet<ObjCProtocolDecl*,8>::iterator I = 4201432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian RHSInheritedProtocols.begin(), 4202432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian E = RHSInheritedProtocols.end(); I != E; ++I) 4203432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian if (InheritedProtocolSet.count((*I))) 4204432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian IntersectionOfProtocols.push_back((*I)); 4205e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4206e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 4207e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4208db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// areCommonBaseCompatible - Returns common base class of the two classes if 4209db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// one found. Note that this is O'2 algorithm. But it will be called as the 4210db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// last type comparison in a ?-exp of ObjC pointer types before a 4211db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// warning is issued. So, its invokation is extremely rare. 4212db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz JahanianQualType ASTContext::areCommonBaseCompatible( 4213db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4214db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCObjectPointerType *RHSOPT) { 4215db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4216db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4217db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian if (!LHS || !RHS) 4218db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4219db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4220db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian while (const ObjCInterfaceDecl *LHSIDecl = LHS->getDecl()->getSuperClass()) { 4221db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian QualType LHSTy = getObjCInterfaceType(LHSIDecl); 4222db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian LHS = LHSTy->getAs<ObjCInterfaceType>(); 4223e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (canAssignObjCInterfaces(LHS, RHS)) { 4224e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVector<ObjCProtocolDecl *, 8> IntersectionOfProtocols; 4225e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian getIntersectionOfProtocols(*this, 4226e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSOPT, RHSOPT, IntersectionOfProtocols); 4227e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (IntersectionOfProtocols.empty()) 4228e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSTy = getObjCObjectPointerType(LHSTy); 4229e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else 4230e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSTy = getObjCObjectPointerType(LHSTy, &IntersectionOfProtocols[0], 4231e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.size()); 4232e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return LHSTy; 4233e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4234db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian } 4235db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4236db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4237db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian} 4238db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 42393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 42403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 42416ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 42426ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 42436ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 42446ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 42451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42466ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 42476ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 4248c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (LHS->getNumProtocols() == 0) 42496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 42501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42516ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 42526ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 4253c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (RHS->getNumProtocols() == 0) 42546ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 42551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4256c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator LHSPI = LHS->qual_begin(), 4257c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff LHSPE = LHS->qual_end(); 425891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 425991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 426091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 426191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 426291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 4263c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator RHSPI = RHS->qual_begin(), 42644084c306635b70f37029dca938444e6013f08684Steve Naroff RHSPE = RHS->qual_end(); 42658f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff RHSPI != RHSPE; RHSPI++) { 42668f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 426791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 42688f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 42698f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 427091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 427191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 427291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 427391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 427491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 427591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 427691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 42776ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 42786ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 4279389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 4280389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 4281183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *LHSOPT = LHS->getAs<ObjCObjectPointerType>(); 4282183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *RHSOPT = RHS->getAs<ObjCObjectPointerType>(); 42831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 428414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (!LHSOPT || !RHSOPT) 4285389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 428614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 428714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 428814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff canAssignObjCInterfaces(RHSOPT, LHSOPT); 4289389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 4290389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 42911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 4292ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 42931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C99 6.2.7p1: Two types have compatible types if their types are the 4294ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 42953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 42960e709abafbd939326850501f795cc7a92c88a354Douglas Gregor if (getLangOptions().CPlusPlus) 42970e709abafbd939326850501f795cc7a92c88a354Douglas Gregor return hasSameType(LHS, RHS); 42980e709abafbd939326850501f795cc7a92c88a354Douglas Gregor 42993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 43003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 43013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4302132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanianbool ASTContext::typesAreBlockPointerCompatible(QualType LHS, QualType RHS) { 4303132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return !mergeTypes(LHS, RHS, true).isNull(); 4304132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian} 4305132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4306132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz JahanianQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs, 4307132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian bool OfBlockPointer) { 4308183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *lbase = lhs->getAs<FunctionType>(); 4309183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *rbase = rhs->getAs<FunctionType>(); 431072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 431172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 43123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 43133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 43143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 4316132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian QualType retType; 4317132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (OfBlockPointer) 4318132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian retType = mergeTypes(rbase->getResultType(), lbase->getResultType(), true); 4319132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian else 4320132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 43213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 43226de8b62ae42818c0bd8878b0d1900e17c7c43e0eFariborz Jahanian if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 432361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 43246de8b62ae42818c0bd8878b0d1900e17c7c43e0eFariborz Jahanian if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 432561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 43266dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump // FIXME: double check this 4327425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // FIXME: should we error if lbase->getRegParmAttr() != 0 && 4328425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // rbase->getRegParmAttr() != 0 && 4329425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // lbase->getRegParmAttr() != rbase->getRegParmAttr()? 4330264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo lbaseInfo = lbase->getExtInfo(); 4331264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo rbaseInfo = rbase->getExtInfo(); 4332425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola unsigned RegParm = lbaseInfo.getRegParm() == 0 ? rbaseInfo.getRegParm() : 4333425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola lbaseInfo.getRegParm(); 4334264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola bool NoReturn = lbaseInfo.getNoReturn() || rbaseInfo.getNoReturn(); 4335425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola if (NoReturn != lbaseInfo.getNoReturn() || 4336425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola RegParm != lbaseInfo.getRegParm()) 43372455636163fdd18581d7fdae816433f886d88213Mike Stump allLTypes = false; 4338425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola if (NoReturn != rbaseInfo.getNoReturn() || 4339425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola RegParm != rbaseInfo.getRegParm()) 43402455636163fdd18581d7fdae816433f886d88213Mike Stump allRTypes = false; 4341264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola CallingConv lcc = lbaseInfo.getCC(); 4342264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola CallingConv rcc = rbaseInfo.getCC(); 4343ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor // Compatible functions must have compatible calling conventions 434404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!isSameCallConv(lcc, rcc)) 4345ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return QualType(); 43461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 4348465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 4349465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 43503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 43513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 43523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 43543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 43553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 43563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 43583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 43593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 43603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43617fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 43627fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 43637fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 43643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 43653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 43663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 43673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 43683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 4369132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian QualType argtype = mergeTypes(largtype, rargtype, OfBlockPointer); 43703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 43713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 437261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 437361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 437461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 437561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 43763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 43773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 43783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 43793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 43802455636163fdd18581d7fdae816433f886d88213Mike Stump lproto->isVariadic(), lproto->getTypeQuals(), 4381264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola false, false, 0, 0, 4382425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo(NoReturn, RegParm, lcc)); 43833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 43843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 43853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 43863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 43873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 438872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 43893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 4390465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 43913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 43923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 43933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 43943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 43953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 43963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 43973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 43983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 43993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 4400b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor 4401b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor // Look at the promotion type of enum types, since that is the type used 4402b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor // to pass enum values. 4403b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor if (const EnumType *Enum = argTy->getAs<EnumType>()) 4404b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor argTy = Enum->getDecl()->getPromotionType(); 4405b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor 44063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 44073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 44083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 44093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 44103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 44123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 44133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 44142d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getNumArgs(), proto->isVariadic(), 4415264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola proto->getTypeQuals(), 4416264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola false, false, 0, 0, 4417425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo(NoReturn, RegParm, lcc)); 44183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 44193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 44213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 4422425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo Info(NoReturn, RegParm, lcc); 4423264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return getFunctionNoProtoType(retType, Info); 44243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 44253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4426132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz JahanianQualType ASTContext::mergeTypes(QualType LHS, QualType RHS, 4427132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian bool OfBlockPointer) { 442843d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 442943d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 443043d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 44317c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 44327c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 44330e709abafbd939326850501f795cc7a92c88a354Douglas Gregor assert(!LHS->getAs<ReferenceType>() && "LHS is a reference type?"); 44340e709abafbd939326850501f795cc7a92c88a354Douglas Gregor assert(!RHS->getAs<ReferenceType>() && "RHS is a reference type?"); 44350e709abafbd939326850501f795cc7a92c88a354Douglas Gregor 44363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 44373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 44383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4439f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 44403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 44413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 44423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the qualifiers are different, the types aren't compatible... mostly. 4444a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor Qualifiers LQuals = LHSCan.getLocalQualifiers(); 4445a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor Qualifiers RQuals = RHSCan.getLocalQualifiers(); 44460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals != RQuals) { 44470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If any of these qualifiers are different, we have a type 44480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // mismatch. 44490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || 44500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall LQuals.getAddressSpace() != RQuals.getAddressSpace()) 44510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 44520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 44530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Exactly one GC qualifier difference is allowed: __strong is 44540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // okay if the other type has no GC qualifier but is an Objective 44550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // C object pointer (i.e. implicitly strong by default). We fix 44560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // this by pretending that the unqualified type was actually 44570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // qualified __strong. 44580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); 44590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); 44600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements"); 44610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 44620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) 44630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 44640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 44650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Strong && RHSCan->isObjCObjectPointerType()) { 44660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(LHS, getObjCGCQualType(RHS, Qualifiers::Strong)); 44670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 44680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_R == Qualifiers::Strong && LHSCan->isObjCObjectPointerType()) { 44690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(getObjCGCQualType(LHS, Qualifiers::Strong), RHS); 44700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 44713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 44720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 44730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 44740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Okay, qualifiers are equal. 44753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4476852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 4477852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 4478f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 44791adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 44801adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 44811adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 44821adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 44834c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 44844c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 4485a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 4486a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 4487a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 4488a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 44891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4490213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 4491213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 4492213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 44931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44944e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 44954e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 44961adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 44971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // a signed integer type, or an unsigned integer type. 4498842aef8d942a880eeb9535d40de31a86838264cbJohn McCall // Compatibility is based on the underlying type, not the promotion 4499842aef8d942a880eeb9535d40de31a86838264cbJohn McCall // type. 4500183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = LHS->getAs<EnumType>()) { 45013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 45023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 4503bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 4504183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = RHS->getAs<EnumType>()) { 45053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 45063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 4507bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 45081adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 45093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 4510ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 45113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45124a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 45131adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 451472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 451572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 4516ad5e73887052193afda72db8efcb812bd083a4a8John McCall#define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base) case Type::Class: 451772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 451872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 451972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 452072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 452172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 452272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 45237c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 45247c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 452572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 452672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 452772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 452872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 452972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 453072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 453172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 453272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 453372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 453472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 453572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 45361adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 45373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 45383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 45396217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<PointerType>()->getPointeeType(); 45406217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<PointerType>()->getPointeeType(); 45413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 45423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 454307d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 454461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 454507d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 454661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 45473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 45483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 4549c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 4550c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 4551c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 45526217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<BlockPointerType>()->getPointeeType(); 45536217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<BlockPointerType>()->getPointeeType(); 4554132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian QualType ResultType = mergeTypes(LHSPointee, RHSPointee, OfBlockPointer); 4555c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 4556c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 4557c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 4558c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 4559c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 4560c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 4561c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 45621adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 45633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 45643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 45653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 45663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 45673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 45683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 45703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 45713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 45723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 457361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 457461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 457561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 457661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 45773bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 45783bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 45793bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 45803bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 45813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 45823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 458361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 458461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 458561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 458661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 45873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 45883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 45893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 45903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 45913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 45923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 45933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 45943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 45953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 45963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 45973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 45983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 45993bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 46003bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 46017e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 46027e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 46033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 46041adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 4605132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return mergeFunctionTypes(LHS, RHS, OfBlockPointer); 460672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 460772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 46083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 46091adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 46103cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 46113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 461264cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 461364cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 461464cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 46153cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 46165a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 46171c471f3e1c0ec8cbc82447bb35908dfc55463e46John McCall if (areCompatVectorTypes(LHSCan->getAs<VectorType>(), 46181c471f3e1c0ec8cbc82447bb35908dfc55463e46John McCall RHSCan->getAs<VectorType>())) 46193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 462061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 462161490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 46225fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 46235a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 46245a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 4625183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* LHSIface = LHS->getAs<ObjCInterfaceType>(); 4626183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* RHSIface = RHS->getAs<ObjCInterfaceType>(); 46275fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 46285fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 46295fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 46305fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 46313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 463261490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 463314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff case Type::ObjCObjectPointer: { 4634132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (OfBlockPointer) { 4635132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (canAssignObjCInterfacesInBlockPointer( 4636132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian LHS->getAs<ObjCObjectPointerType>(), 4637132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian RHS->getAs<ObjCObjectPointerType>())) 4638132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return LHS; 4639132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return QualType(); 4640132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4641183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (canAssignObjCInterfaces(LHS->getAs<ObjCObjectPointerType>(), 4642183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall RHS->getAs<ObjCObjectPointerType>())) 464314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return LHS; 464414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4645bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 4646132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4647ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 464872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 464972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 4650ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 46517192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 46525426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 4653ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 4654ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 465588054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 4656ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 4657632d772a78db7e2cd9b36f8a22aee49d44486fbfSebastian Redl if (T->isBooleanType()) 4658ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 4659842aef8d942a880eeb9535d40de31a86838264cbJohn McCall if (EnumType *ET = dyn_cast<EnumType>(T)) 466029a7f3342c3c6dd15d914c61ae22246c36d51ce7Eli Friedman T = ET->getDecl()->getIntegerType(); 4661f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 4662ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 4663ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4664ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 4665ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 4666ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 46676a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 46686a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // Turn <4 x signed int> -> <4 x unsigned int> 46696a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const VectorType *VTy = T->getAs<VectorType>()) 46706a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner return getVectorType(getCorrespondingUnsignedType(VTy->getElementType()), 467182287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VTy->getNumElements(), VTy->isAltiVec(), VTy->isPixel()); 46726a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 46736a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // For enums, we return the unsigned version of the base type. 46746a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const EnumType *ETy = T->getAs<EnumType>()) 4675ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 46766a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 46776a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner const BuiltinType *BTy = T->getAs<BuiltinType>(); 46786a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner assert(BTy && "Unexpected signed integer type"); 4679ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 4680ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 4681ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 4682ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 4683ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 4684ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 4685ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 4686ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 4687ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 4688ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 4689ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 4690ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 46912df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 46922df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 4693ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 4694ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 4695ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 4696ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 4697ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4698ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 46992cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 47002cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 47012cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 470286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 470386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 470486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 470586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 470686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 470786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 470886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 470986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 47101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 471186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 471286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 471386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 471486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 471586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 47161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 471786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 471886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 471986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 472086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 47211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: Done = true; --Str; break; 472286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 472386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 472486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 472586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 472686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 472786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 472886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 472986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 473086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 473186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 473286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 473386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 473486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 473586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 473686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 473786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 473886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 473986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 47401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 474186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 474286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 474386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 474486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 474586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 474686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 474786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 474886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 474986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 475086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 475186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 475286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 475386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 475486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 475586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 475686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 475786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 475886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 475986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 476086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 476186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 476286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 476386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 476486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 476586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 476686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 476786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 476886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 476986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 477086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 477186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 477286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 477386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 477486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 477586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 477686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 477786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 477886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 477986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 478086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 478186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 478286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 478386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 478486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 478586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 478686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 478786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 478886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 478986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 479086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 479186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 479286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 479386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 479486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 479586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 479686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 479786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 479886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 479986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 480086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 480186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 480286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 480386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 480486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 480586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 480686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 480786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 480886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 480986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 481086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 481186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 481286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 481386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 481486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 481586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 481686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 481786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 481886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 481986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 482086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 482186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 482286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 482386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 48241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 482586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 48261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 482786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 482882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson // FIXME: Don't know what to do about AltiVec. 482982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Type = Context.getVectorType(ElementType, NumElements, false, false); 483086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 483186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4832d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor case 'X': { 4833d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 4834d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor Type = Context.getComplexType(ElementType); 4835d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor break; 4836d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor } 48379a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'P': 4838c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor Type = Context.getFILEType(); 4839c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor if (Type.isNull()) { 4840f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_stdio; 484186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 484286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4843fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 48449a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'J': 4845f711c41dd9412a8182793259d355c4f6979ed5edMike Stump if (Signed) 4846782fa308a765aeac2acb39c4e697c937ec21185bMike Stump Type = Context.getsigjmp_bufType(); 4847f711c41dd9412a8182793259d355c4f6979ed5edMike Stump else 4848f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Type = Context.getjmp_bufType(); 4849f711c41dd9412a8182793259d355c4f6979ed5edMike Stump 4850fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump if (Type.isNull()) { 4851f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_setjmp; 4852fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump return QualType(); 4853fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump } 4854fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 4855782fa308a765aeac2acb39c4e697c937ec21185bMike Stump } 48561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 485786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 485886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 48591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 486086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 486186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 4862187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall switch (char c = *Str++) { 486386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 486486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 486586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 4866187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall { 4867187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall // Both pointers and references can have their pointee types 4868187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall // qualified with an address space. 4869187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall char *End; 4870187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall unsigned AddrSpace = strtoul(Str, &End, 10); 4871187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall if (End != Str && AddrSpace != 0) { 4872187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall Type = Context.getAddrSpaceQualType(Type, AddrSpace); 4873187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall Str = End; 4874187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall } 4875187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall } 4876187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall if (c == '*') 4877187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall Type = Context.getPointerType(Type); 4878187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall else 4879187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall Type = Context.getLValueReferenceType(Type); 488086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 488186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 488286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 48830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Type = Type.withConst(); 488486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 4885013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian case 'D': 4886013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian Type = Context.getVolatileType(Type); 4887013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian break; 488886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 488986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 48901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 489186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 489286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 489386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 489486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 489586df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 489686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 489786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 48981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 489986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 49001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 490186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 490286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 490386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 490486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 490586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 490686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 490786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 490886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 490986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 491086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 491186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 491286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 49131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 491486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 491586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 491686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 491786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 491886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 491986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 492086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 492186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 492286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 4923ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor 4924ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor // FIXME: Should we create noreturn types? 492586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 4926ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor TypeStr[0] == '.', 0, false, false, 0, 0, 4927264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo()); 492886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 4929a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4930a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType 4931a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanASTContext::UsualArithmeticConversionsType(QualType lhs, QualType rhs) { 4932a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Perform the usual unary conversions. We do this early so that 4933a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // integral promotions to "int" can allow us to exit early, in the 4934a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // lhs == rhs check. Also, for conversion purposes, we ignore any 4935a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // qualifiers. For example, "const float" and "float" are 4936a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // equivalent. 4937a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isPromotableIntegerType()) 4938a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getPromotedIntegerType(lhs); 4939a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4940a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = lhs.getUnqualifiedType(); 4941a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isPromotableIntegerType()) 4942a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getPromotedIntegerType(rhs); 4943a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 4944a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = rhs.getUnqualifiedType(); 4945a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 4946a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If both types are identical, no conversion is needed. 4947a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs == rhs) 4948a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 49491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4950a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If either side is a non-arithmetic type (e.g. a pointer), we are done. 4951a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The caller can deal with this (e.g. pointer + int). 4952a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (!lhs->isArithmeticType() || !rhs->isArithmeticType()) 4953a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 49541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 49551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // At this point, we have two different arithmetic types. 49561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4957a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle complex types first (C99 6.3.1.8p1). 4958a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexType() || rhs->isComplexType()) { 4959a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the complex type. 49601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (rhs->isIntegerType() || rhs->isComplexIntegerType()) { 4961a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 4962a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4963a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 49641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isIntegerType() || lhs->isComplexIntegerType()) { 4965a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 4966a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4967a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4968a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // This handles complex/complex, complex/float, or float/complex. 49691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // When both operands are complex, the shorter operand is converted to the 49701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type of the longer, and that is the type of the result. This corresponds 49711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // to what is done when combining two real floating-point operands. 49721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The fun begins when size promotion occur across type domains. 4973a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // From H&S 6.3.4: When one operand is complex and the other is a real 49741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // floating-point type, the less precise type is converted, within it's 4975a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // real or complex domain, to the precision of the other type. For example, 49761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // when combining a "long double" with a "double _Complex", the 4977a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // "double _Complex" is promoted to "long double _Complex". 4978a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 49791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 49801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (result > 0) { // The left side is bigger, convert rhs. 4981a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getFloatingTypeOfSizeWithinDomain(lhs, rhs); 49821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (result < 0) { // The right side is bigger, convert lhs. 4983a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getFloatingTypeOfSizeWithinDomain(rhs, lhs); 49841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 4985a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // At this point, lhs and rhs have the same rank/size. Now, make sure the 4986a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // domains match. This is a requirement for our implementation, C99 4987a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // does not require this promotion. 4988a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs != rhs) { // Domains don't match, we have complex/float mix. 4989a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType()) { // handle "double, _Complex double". 4990a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 4991a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { // handle "_Complex double, double". 4992a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 4993a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4994a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4995a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // The domain/size match exactly. 4996a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 4997a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Now handle "real" floating types (i.e. float, double, long double). 4998a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType() || rhs->isRealFloatingType()) { 4999a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the real floating type. 5000a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isIntegerType()) { 5001a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the lhs floating point type. 5002a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5003a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5004a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isComplexIntegerType()) { 5005a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the complex floating point type. 5006a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(lhs); 5007a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5008a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isIntegerType()) { 5009a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the rhs floating point type. 5010a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5011a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 50121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isComplexIntegerType()) { 5013a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the complex floating point type. 5014a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(rhs); 5015a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5016a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // We have two real floating types, float/complex combos were handled above. 5017a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Convert the smaller operand to the bigger result. 5018a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 5019a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (result > 0) // convert the rhs 5020a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5021a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(result < 0 && "illegal float comparison"); 5022a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; // convert the lhs 5023a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5024a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexIntegerType() || rhs->isComplexIntegerType()) { 5025a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle GCC complex int extension. 5026a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *lhsComplexInt = lhs->getAsComplexIntegerType(); 5027a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *rhsComplexInt = rhs->getAsComplexIntegerType(); 5028a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 5029a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsComplexInt && rhsComplexInt) { 50301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (getIntegerTypeOrder(lhsComplexInt->getElementType(), 5031a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsComplexInt->getElementType()) >= 0) 5032a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // convert the rhs 5033a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5034a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (lhsComplexInt && rhs->isIntegerType()) { 5035a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 5036a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5037a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (rhsComplexInt && lhs->isIntegerType()) { 5038a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 5039a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5040a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5041a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5042a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Finally, we have two differing integer types. 5043a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The rules for this case are in C99 6.3.1.8 5044a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int compare = getIntegerTypeOrder(lhs, rhs); 5045a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman bool lhsSigned = lhs->isSignedIntegerType(), 5046a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsSigned = rhs->isSignedIntegerType(); 5047a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman QualType destType; 5048a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsSigned == rhsSigned) { 5049a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Same signedness; use the higher-ranked type 5050a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = compare >= 0 ? lhs : rhs; 5051a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (compare != (lhsSigned ? 1 : -1)) { 5052a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The unsigned type has greater than or equal rank to the 5053a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // signed type, so use the unsigned type 5054a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? rhs : lhs; 5055a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (getIntWidth(lhs) != getIntWidth(rhs)) { 5056a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The two types are different widths; if we are here, that 5057a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // means the signed type is larger than the unsigned type, so 5058a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // use the signed type. 5059a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? lhs : rhs; 5060a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { 5061a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The signed type is higher-ranked than the unsigned type, 5062a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // but isn't actually any bigger (like unsigned int and long 5063a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // on most 32-bit systems). Use the unsigned type corresponding 5064a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // to the signed type. 5065a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = getCorrespondingUnsignedType(lhsSigned ? lhs : rhs); 5066a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5067a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return destType; 5068a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 5069