ASTContext.cpp revision 3cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ASTContext.cpp - Context to hold long-lived AST nodes ------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the ASTContext interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 15bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck#include "clang/AST/CharUnits.h" 1649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis#include "clang/AST/DeclCXX.h" 17980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 18aaba5e346dffdbad5d1c42765a89e4a7afb0da67Douglas Gregor#include "clang/AST/DeclTemplate.h" 19b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis#include "clang/AST/TypeLoc.h" 20e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 212cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor#include "clang/AST/ExternalASTSource.h" 2219cc4abea06a9b49e0e16a50d335c064cd723572Anders Carlsson#include "clang/AST/RecordLayout.h" 231b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner#include "clang/Basic/Builtins.h" 24a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner#include "clang/Basic/SourceManager.h" 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 26f5942a44880be26878592eb052b737579349411eBenjamin Kramer#include "llvm/ADT/SmallString.h" 2785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 286fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.h" 29f5942a44880be26878592eb052b737579349411eBenjamin Kramer#include "llvm/Support/raw_ostream.h" 3029445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson#include "RecordLayoutBuilder.h" 3129445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3861710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 39444be7366d0a1e172c0290a1ea54c1cb16b5947cDaniel Dunbar const TargetInfo &t, 40e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 411b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner Builtin::Context &builtins, 421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool FreeMem, unsigned size_reserve) : 431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 44782fa308a765aeac2acb39c4e697c937ec21185bMike Stump ObjCFastEnumerationStateTypeDecl(0), FILEDecl(0), jmp_bufDecl(0), 45083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump sigjmp_bufDecl(0), BlockDescriptorType(0), BlockDescriptorExtendedType(0), 46083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump SourceMgr(SM), LangOpts(LOpts), 471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump LoadedExternalComments(false), FreeMemory(FreeMem), Target(t), 482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Idents(idents), Selectors(sels), 491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BuiltinInfo(builtins), ExternalSource(0), PrintingPolicy(LOpts) { 500f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCIdRedefinitionType = QualType(); 510f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCClassRedefinitionType = QualType(); 52369a3bd9979cf529eed529aa037de713c213e47dFariborz Jahanian ObjCSelRedefinitionType = QualType(); 531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (size_reserve > 0) Types.reserve(size_reserve); 54e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 5514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff InitBuiltinTypes(); 56e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 57e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 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 4162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Determine whether the given comment is a Doxygen-style comment. 4172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 4182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Start the start of the comment text. 4192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 4202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param End the end of the comment text. 4212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// 4222e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \param Member whether we want to check whether this is a member comment 4232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// (which requires a < after the Doxygen-comment delimiter). Otherwise, 4242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// we only return true when we find a non-member comment. 4251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic bool 4261eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpisDoxygenComment(SourceManager &SourceMgr, SourceRange Comment, 4272e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool Member = false) { 4281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *BufferStart 4292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(SourceMgr.getFileID(Comment.getBegin())).first; 4302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char *Start = BufferStart + SourceMgr.getFileOffset(Comment.getBegin()); 4312e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor const char* End = BufferStart + SourceMgr.getFileOffset(Comment.getEnd()); 4321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (End - Start < 4) 4342e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 4352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor assert(Start[0] == '/' && "Not a comment?"); 4372e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '*' && !(Start[2] == '!' || Start[2] == '*')) 4382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 4392e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Start[1] == '/' && !(Start[2] == '!' || Start[2] == '/')) 4402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return false; 4412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return (Start[3] == '<') == Member; 4432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 4442e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor/// \brief Retrieve the comment associated with the given declaration, if 4461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// it has one. 4472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregorconst char *ASTContext::getCommentForDecl(const Decl *D) { 4482e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!D) 4492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check whether we have cached a comment string for this declaration 4522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // already. 4531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::DenseMap<const Decl *, std::string>::iterator Pos 4542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = DeclComments.find(D); 4552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Pos != DeclComments.end()) 4562e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Pos->second.c_str(); 4572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If we have an external AST source and have not yet loaded comments from 4592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // that source, do so now. 4602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (ExternalSource && !LoadedExternalComments) { 4612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange> LoadedComments; 4622e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ExternalSource->ReadComments(LoadedComments); 4631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!LoadedComments.empty()) 4652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Comments.insert(Comments.begin(), LoadedComments.begin(), 4662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedComments.end()); 4671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LoadedExternalComments = true; 4692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If there are no comments anywhere, we won't find anything. 4722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Comments.empty()) 4732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the declaration doesn't map directly to a location in a file, we 4762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // can't find the comment. 4772e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceLocation DeclStartLoc = D->getLocStart(); 4782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartLoc.isInvalid() || !DeclStartLoc.isFileID()) 4792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 4802e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 4812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Find the comment that occurs just before this declaration. 4822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator LastComment 4831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = std::lower_bound(Comments.begin(), Comments.end(), 4842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceRange(DeclStartLoc), 4852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor BeforeInTranslationUnit(&SourceMgr)); 4861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the location for the start of the declaration and find the 4882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // beginning of the file buffer. 4891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<FileID, unsigned> DeclStartDecomp 4902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(DeclStartLoc); 4911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const char *FileBufferStart 4922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getBufferData(DeclStartDecomp.first).first; 4931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // First check whether we have a comment for a member. 4952e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment != Comments.end() && 4962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor !isa<TagDecl>(D) && !isa<NamespaceDecl>(D) && 4972e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor isDoxygenComment(SourceMgr, *LastComment, true)) { 4982e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 4992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 5002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first == LastCommentEndDecomp.first && 5012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second) 5021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump == SourceMgr.getLineNumber(LastCommentEndDecomp.first, 5032e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second)) { 5042e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The Doxygen member comment comes after the declaration starts and 5052e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is on the same line and in the same file as the declaration. This 5062e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // is the comment we want. 5072e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 5081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 5091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 5102e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 5112e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 5122e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 5132e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 5141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5152e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (LastComment == Comments.begin()) 5162e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 5172e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --LastComment; 5182e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 5192e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Decompose the end of the comment. 5202e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> LastCommentEndDecomp 5212e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 5221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5232e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment and the declaration aren't in the same file, then they 5242e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // aren't related. 5252e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (DeclStartDecomp.first != LastCommentEndDecomp.first) 5262e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 5271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5282e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Check that we actually have a Doxygen comment. 5292e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *LastComment)) 5302e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 5311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5322e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Compute the starting line for the declaration and for the end of the 5332e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // comment (this is expensive). 5341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned DeclStartLine 5352e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second); 5362e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned CommentEndLine 5371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = SourceMgr.getLineNumber(LastCommentEndDecomp.first, 5382e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor LastCommentEndDecomp.second); 5391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5402e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the comment does not end on the line prior to the declaration, then 5412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // the comment is not associated with the declaration at all. 5422e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (CommentEndLine + 1 != DeclStartLine) 5432e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return 0; 5441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5452e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // We have a comment, but there may be more comments on the previous lines. 5462e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Keep looking so long as the comments are still Doxygen comments and are 5472e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // still adjacent. 5481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ExpectedLine 5492e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(LastComment->getBegin()) - 1; 5502e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::vector<SourceRange>::iterator FirstComment = LastComment; 5512e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != Comments.begin()) { 5522e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Look at the previous comment 5532e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor --FirstComment; 5542e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> Decomp 5552e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 5561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5572e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this previous comment is in a different file, we're done. 5582e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Decomp.first != DeclStartDecomp.first) { 5592e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 5602e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 5612e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 5621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If this comment is not a Doxygen comment, we're done. 5642e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (!isDoxygenComment(SourceMgr, *FirstComment)) { 5652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 5662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 5672e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 5681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // If the line number is not what we expected, we're done. 5702e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor unsigned Line = SourceMgr.getLineNumber(Decomp.first, Decomp.second); 5712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor if (Line != ExpectedLine) { 5722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 5732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor break; 5742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 5751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Set the next expected line number. 5771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExpectedLine 5782e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getSpellingLineNumber(FirstComment->getBegin()) - 1; 5792e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 5801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5812e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // The iterator range [FirstComment, LastComment] contains all of the 5822e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // BCPL comments that, together, are associated with this declaration. 5832e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Form a single comment block string for this declaration that concatenates 5842e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // all of these comments. 5852e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::string &Result = DeclComments[D]; 5862e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor while (FirstComment != LastComment) { 5872e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompStart 5882e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getBegin()); 5892e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor std::pair<FileID, unsigned> DecompEnd 5902e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 5912e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Result.append(FileBufferStart + DecompStart.second, 5922e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + DecompEnd.second + 1); 5932e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor ++FirstComment; 5942e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 5951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5962e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor // Append the last comment line. 5971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result.append(FileBufferStart + 5981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceMgr.getFileOffset(LastComment->getBegin()), 5992e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor FileBufferStart + LastCommentEndDecomp.second + 1); 6002e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return Result.c_str(); 6012e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 6022e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 603464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 604464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 605464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 606a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 607b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 608b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 609b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 610183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const BuiltinType *BT = T->getAs<BuiltinType>(); 611b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 612b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 613b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 614b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 615b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 616b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 617b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 618b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 619b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 6208b752f10c394b140f9ef89e049cbad1a7676fc25Ken Dyck/// getDeclAlign - Return a conservative estimate of the alignment of the 621af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 622af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 6235d484e8cf710207010720589d89602233de61d01Sebastian Redl/// If @p RefAsPointee, references are treated like their underlying type 6245d484e8cf710207010720589d89602233de61d01Sebastian Redl/// (for alignof), else they're treated like pointers (for CodeGen). 6258b752f10c394b140f9ef89e049cbad1a7676fc25Ken DyckCharUnits ASTContext::getDeclAlign(const Decl *D, bool RefAsPointee) { 626dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 627dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 62840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 629bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Align = std::max(Align, AA->getMaxAlignment()); 630dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 631af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 632af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 6336217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType* RT = T->getAs<ReferenceType>()) { 6345d484e8cf710207010720589d89602233de61d01Sebastian Redl if (RefAsPointee) 6355d484e8cf710207010720589d89602233de61d01Sebastian Redl T = RT->getPointeeType(); 6365d484e8cf710207010720589d89602233de61d01Sebastian Redl else 6375d484e8cf710207010720589d89602233de61d01Sebastian Redl T = getPointerType(RT->getPointeeType()); 6385d484e8cf710207010720589d89602233de61d01Sebastian Redl } 6395d484e8cf710207010720589d89602233de61d01Sebastian Redl if (!T->isIncompleteType() && !T->isFunctionType()) { 6404cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 641dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 642dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 643dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 644dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 645dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 64605f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis if (const FieldDecl *FD = dyn_cast<FieldDecl>(VD)) { 64705f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis // In the case of a field in a packed struct, we want the minimum 64805f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis // of the alignment of the field and the alignment of the struct. 64905f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis Align = std::min(Align, 65005f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis getPreferredTypeAlign(FD->getParent()->getTypeForDecl())); 65105f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis } 652af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 653dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 6548b752f10c394b140f9ef89e049cbad1a7676fc25Ken Dyck return CharUnits::fromQuantity(Align / Target.getCharWidth()); 655af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 656b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 657a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 658a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 6590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// 6600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// FIXME: Pointers into different addr spaces could have different sizes and 6610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// alignment requirements: getPointerInfo should take an AddrSpace, this 6620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// should take a QualType, &c. 663d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 6641d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 6655e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 6665e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 667a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 66872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 66972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 67018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 67172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 67272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 67318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 67472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 67572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 6765d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 6775d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 67818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 67918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 68018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 68118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 68218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 68372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 684fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 68518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 68618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 68718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 68818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 689fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 6901d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 6911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 69298be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 6939e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 694030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 695030d8846c7e520330007087e949f621989876e3aChris Lattner break; 6965c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 697213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 698030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 6999fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner const VectorType *VT = cast<VectorType>(T); 7009fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(VT->getElementType()); 7019fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = EltInfo.first*VT->getNumElements(); 7024bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 7036fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 7046fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 7059fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner if (VT->getNumElements() & (VT->getNumElements()-1)) { 7069fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Align = llvm::NextPowerOf2(Align); 7079fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = llvm::RoundUpToAlignment(Width, Align); 7089fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner } 709030d8846c7e520330007087e949f621989876e3aChris Lattner break; 710030d8846c7e520330007087e949f621989876e3aChris Lattner } 7115d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 7129e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 713a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 714692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 715d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 71618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 71718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 71818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 71918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 72018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 7216f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 7229e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 7239e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 7246f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 725692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 726692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 727692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 7286f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 7299e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 7309e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 7316f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 73264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 73364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 73464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 73564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 736f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char16: 737f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar16Width(); 738f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar16Align(); 739f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 740f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char32: 741f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar32Width(); 742f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar32Align(); 743f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 744692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 7456f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 7469e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 7479e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 7486f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 749692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 7506f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 7519e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 7529e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 7536f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 754692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 7556f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 7569e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 7579e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 7586f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 759692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 7606f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 7619e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 7629e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 7636f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 764ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 765ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 766ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 767ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 768ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 7696f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 7709e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 7719e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 7726f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 7736f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 7745426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 7755426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 7766f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 7776f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 7789e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 7799e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 7806f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 7816e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 7826e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 7836e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 7841590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 785a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 786bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 787d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 7885426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 789f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 7906f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 791485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 792485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 793485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 794485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 795485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 796485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 7975d484e8cf710207010720589d89602233de61d01Sebastian Redl case Type::LValueReference: 7985d484e8cf710207010720589d89602233de61d01Sebastian Redl case Type::RValueReference: { 7995d484e8cf710207010720589d89602233de61d01Sebastian Redl // alignof and sizeof should never enter this code path here, so we go 8005d484e8cf710207010720589d89602233de61d01Sebastian Redl // the pointer route. 8015d484e8cf710207010720589d89602233de61d01Sebastian Redl unsigned AS = cast<ReferenceType>(T)->getPointeeType().getAddressSpace(); 8025d484e8cf710207010720589d89602233de61d01Sebastian Redl Width = Target.getPointerWidth(AS); 8035d484e8cf710207010720589d89602233de61d01Sebastian Redl Align = Target.getPointerAlign(AS); 8045d484e8cf710207010720589d89602233de61d01Sebastian Redl break; 8055d484e8cf710207010720589d89602233de61d01Sebastian Redl } 806f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 807f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 8085426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 809f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 810f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 811f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 812f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 813f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 8141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> PtrDiffInfo = 8151cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 8161cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 817f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 818f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 8191cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 8201cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 821f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 8225d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 8235d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 8245d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 8251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> EltInfo = 82698be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 8279e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 8285d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 8295d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 8305d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 83144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 8321d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 83344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 83444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 83544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 83644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 83744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 83872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 83972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 8401d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 8411d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 8421d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 8438389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 8448389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 8458389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 8468389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 8471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8481d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 8497176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 8507176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 8511d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 8527176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 8537176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 8547176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 855dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 856a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 8577532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 8589fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::SubstTemplateTypeParm: 85949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return getTypeInfo(cast<SubstTemplateTypeParmType>(T)-> 86049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall getReplacementType().getTypePtr()); 86149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 8629fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::Elaborated: 8639fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner return getTypeInfo(cast<ElaboratedType>(T)->getUnderlyingType() 8649fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner .getTypePtr()); 8657da2431c23ef1ee8acb114e39692246e1801afc2John McCall 86618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 86718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 86840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 869bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Align = std::max(Aligned->getMaxAlignment(), 870bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt getTypeAlign(Typedef->getUnderlyingType().getTypePtr())); 87118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 87218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 87318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 8747532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 8757176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 87618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 87718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 87818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 87918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 88018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 88118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 88218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 88318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 884395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 885395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 886395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 887395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 88818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 88918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 8901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8913cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall case Type::InjectedClassName: 8923cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return getTypeInfo(cast<InjectedClassNameType>(T) 8933cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall ->getUnderlyingType().getTypePtr()); 8943cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 89518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 8961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(getCanonicalType(T) != T && 89718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 89818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 89918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 90018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 90118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 90218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 9031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 904464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 9059e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 906a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 907a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 908bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck/// getTypeSizeInChars - Return the size of the specified type, in characters. 909bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck/// This method does not work on incomplete types. 910bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen DyckCharUnits ASTContext::getTypeSizeInChars(QualType T) { 911199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return CharUnits::fromQuantity(getTypeSize(T) / getCharWidth()); 912bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck} 913bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen DyckCharUnits ASTContext::getTypeSizeInChars(const Type *T) { 914199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return CharUnits::fromQuantity(getTypeSize(T) / getCharWidth()); 915bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck} 916bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck 91716e20cce43385001f33f8e3f90ee345609c805d1Ken Dyck/// getTypeAlignInChars - Return the ABI-specified alignment of a type, in 91886fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck/// characters. This method does not work on incomplete types. 91986fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken DyckCharUnits ASTContext::getTypeAlignInChars(QualType T) { 92086fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck return CharUnits::fromQuantity(getTypeAlign(T) / getCharWidth()); 92186fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck} 92286fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken DyckCharUnits ASTContext::getTypeAlignInChars(const Type *T) { 92386fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck return CharUnits::fromQuantity(getTypeAlign(T) / getCharWidth()); 92486fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck} 92586fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck 92634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 92734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 92834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 92934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 93034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 93134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 9321eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 9331eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 934183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType* CT = T->getAs<ComplexType>()) 9351eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 9361eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 9371eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 9381eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 9391eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 94034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 94134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 94234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 943a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 944a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 945a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 946a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 947a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 948f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 949a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 950a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 951a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 952a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 953a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 954a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 955a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 956a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 957a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 958a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 959a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 960a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 9618e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 9628e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 9638e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 9648e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 96511062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 9668e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 9678e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 9688e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 9698e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 97011062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian 97111062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian CollectNonClassIvars(OI, Ivars); 9728e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 9738e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9749820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 9759820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 97617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 97717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 9789820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 9799820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 9801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9819820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 9829820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 9839820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 9849820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 9859820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 9869820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 98711062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian/// CollectNonClassIvars - 98811062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian/// This routine collects all other ivars which are not declared in the class. 98911062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian/// This includes synthesized ivars and those in class's implementation. 9909820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 99111062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanianvoid ASTContext::CollectNonClassIvars(const ObjCInterfaceDecl *OI, 9929820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 9930e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian // Find ivars declared in class extension. 9940e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian if (const ObjCCategoryDecl *CDecl = OI->getClassExtension()) { 9950e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian for (ObjCCategoryDecl::ivar_iterator I = CDecl->ivar_begin(), 9960e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian E = CDecl->ivar_end(); I != E; ++I) { 9970e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian Ivars.push_back(*I); 9980e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian } 9990e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian } 10000e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian 100117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 100217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 10039820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 10049820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 10059820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 10069820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 10079820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 10089820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 10099820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 10109820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 10119820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 10129820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 101311062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian 101411062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian // Also add any ivar defined in this class's implementation 101511062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian if (ObjCImplementationDecl *ImplDecl = OI->getImplementation()) { 101611062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian for (ObjCImplementationDecl::ivar_iterator I = ImplDecl->ivar_begin(), 101711062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian E = ImplDecl->ivar_end(); I != E; ++I) 101811062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian Ivars.push_back(*I); 101911062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian } 10209820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 10219820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 1022e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// CollectInheritedProtocols - Collect all protocols in current class and 1023e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// those inherited by it. 1024e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid ASTContext::CollectInheritedProtocols(const Decl *CDecl, 1025432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl*, 8> &Protocols) { 1026e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCInterfaceDecl *OI = dyn_cast<ObjCInterfaceDecl>(CDecl)) { 1027e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 1028e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 1029e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 1030432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 1031e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 1032b2f812165676230bce5d0215e49a4749c451ca9cFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) { 1033b2f812165676230bce5d0215e49a4749c451ca9cFariborz Jahanian Protocols.insert(*P); 1034e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 1035e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 1036b2f812165676230bce5d0215e49a4749c451ca9cFariborz Jahanian } 1037e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 1038e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian // Categories of this Interface. 1039e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (const ObjCCategoryDecl *CDeclChain = OI->getCategoryList(); 1040e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CDeclChain; CDeclChain = CDeclChain->getNextClassCategory()) 1041e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(CDeclChain, Protocols); 1042e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (ObjCInterfaceDecl *SD = OI->getSuperClass()) 1043e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian while (SD) { 1044e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(SD, Protocols); 1045e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian SD = SD->getSuperClass(); 1046e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 1047e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 1048e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 1049e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCCategoryDecl *OC = dyn_cast<ObjCCategoryDecl>(CDecl)) { 1050e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OC->protocol_begin(), 1051e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OC->protocol_end(); P != PE; ++P) { 1052e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 1053432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 1054e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 1055e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 1056e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 1057e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 1058e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 1059e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 1060e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCProtocolDecl *OP = dyn_cast<ObjCProtocolDecl>(CDecl)) { 1061e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = OP->protocol_begin(), 1062e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OP->protocol_end(); P != PE; ++P) { 1063e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 1064432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 1065e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 1066e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 1067e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 1068e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 1069e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return; 1070e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 1071e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 1072e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 10738e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 10748e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 107517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 107617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = PD->prop_end(); I != E; ++I) 10778e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 10788e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 10798e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 10808e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into nested protocols. 10818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 10828e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = PD->protocol_end(); P != E; ++P) 10838e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(*P); 10848e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 10858e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 10868e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 10871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) { 10888e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned count = 0; 108917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 109017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis E = OI->prop_end(); I != E; ++I) { 10918e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if ((*I)->getPropertyIvarDecl()) 10928e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ++count; 10938e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 10948e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // Also look into interface's protocol list for properties declared 10958e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian // in the protocol and whose ivars are synthesized. 10968e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 10978e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 10988e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian ObjCProtocolDecl *PD = (*P); 10998e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian count += CountProtocolSynthesizedIvars(PD); 11008e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 11018e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 11028e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 11038e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 11048a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCInterfaceDecl,or NULL if none exists. 11058a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { 11068a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 11078a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 11088a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 11098a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCImplementationDecl>(I->second); 11108a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 11118a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 11128a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCCategoryDecl, or NULL if none exists. 11138a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { 11148a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 11158a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 11168a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 11178a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCCategoryImplDecl>(I->second); 11188a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 11198a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 11208a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 11218a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCInterfaceDecl. 11228a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, 11238a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImplementationDecl *ImplD) { 11248a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(IFaceD && ImplD && "Passed null params"); 11258a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[IFaceD] = ImplD; 11268a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 11278a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCCategoryDecl. 11288a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, 11298a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCCategoryImplDecl *ImplD) { 11308a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(CatD && ImplD && "Passed null params"); 11318a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[CatD] = ImplD; 11328a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 11338a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 1134a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Allocate an uninitialized TypeSourceInfo. 1135b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 1136a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// The caller should initialize the memory held by TypeSourceInfo using 1137b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// the TypeLoc wrappers. 1138b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 1139b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \param T the type that will be the basis for type source info. This type 1140b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// should refer to how the declarator was written in source code, not to 1141b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// what type semantic analysis resolved the declarator to. 1142a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo *ASTContext::CreateTypeSourceInfo(QualType T, 1143109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall unsigned DataSize) { 1144109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall if (!DataSize) 1145109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall DataSize = TypeLoc::getFullDataSizeForType(T); 1146109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall else 1147109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall assert(DataSize == TypeLoc::getFullDataSizeForType(T) && 1148a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall "incorrect data size provided to CreateTypeSourceInfo!"); 1149109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall 1150a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 1151a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall (TypeSourceInfo*)BumpAlloc.Allocate(sizeof(TypeSourceInfo) + DataSize, 8); 1152a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (TInfo) TypeSourceInfo(T); 1153a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 1154b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis} 1155b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis 1156a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo *ASTContext::getTrivialTypeSourceInfo(QualType T, 1157a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall SourceLocation L) { 1158a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = CreateTypeSourceInfo(T); 1159a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall DI->getTypeLoc().initialize(L); 1160a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall return DI; 1161a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall} 1162a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall 1163b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 1164b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 1165b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 1166b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 1167b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 116844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 1169b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 1170b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 1171532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 1172532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 117344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 11741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCContainerDecl *Key = 1175d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 1176d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 1177d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 117844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 1179453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 1180453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 11818e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian unsigned SynthCount = CountSynthesizedIvars(D); 1182d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 1183453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 1184453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 1185453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 11868e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian if (SynthCount == 0) 1187453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 1188453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 1189453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 11901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 119129445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D, Impl); 119229445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ObjCLayouts[Key] = NewEntry; 11931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 119444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 119544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 119644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 1197b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1198b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 1199b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 1200b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1201b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 1202b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1203b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 1204b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 1205b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1206b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 120788a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 1208464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 1209464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 121098be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 1211952b017601f9c82b51119c3a1600f1312a833db9Douglas Gregor D = D->getDefinition(); 12124b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 12134bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 1214464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 1215ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // Note that we can't save a reference to the entry because this function 1216ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman // is recursive. 1217ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman const ASTRecordLayout *Entry = ASTRecordLayouts[D]; 1218464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 12194bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 12201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const ASTRecordLayout *NewEntry = 122129445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson ASTRecordLayoutBuilder::ComputeLayout(*this, D); 1222ab22c43320ae813e4f6214f48968216b7cb09b90Eli Friedman ASTRecordLayouts[D] = NewEntry; 12231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12245d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 1225464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 1226464175bba1318bef7905122e9fda20cff926df78Chris Lattner 1227f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlssonconst CXXMethodDecl *ASTContext::getKeyFunction(const CXXRecordDecl *RD) { 1228952b017601f9c82b51119c3a1600f1312a833db9Douglas Gregor RD = cast<CXXRecordDecl>(RD->getDefinition()); 1229f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson assert(RD && "Cannot get key function for forward declarations!"); 1230f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1231f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson const CXXMethodDecl *&Entry = KeyFunctions[RD]; 1232f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson if (!Entry) 1233f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson Entry = ASTRecordLayoutBuilder::ComputeKeyFunction(RD); 1234f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson else 1235f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson assert(Entry == ASTRecordLayoutBuilder::ComputeKeyFunction(RD) && 1236f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson "Key function changed!"); 1237f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1238f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson return Entry; 1239f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson} 1240f53df2398e07d13be9962b95aebc19b31706fa33Anders Carlsson 1241a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1242a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 1243a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1244a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 12450953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getExtQualType(const Type *TypeNode, Qualifiers Quals) { 12460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned Fast = Quals.getFastQualifiers(); 12470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeFastQualifiers(); 12480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 12490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Check if we've already instantiated this type. 12500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::FoldingSetNodeID ID; 12510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQuals::Profile(ID, TypeNode, Quals); 12520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void *InsertPos = 0; 12530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ExtQuals *EQ = ExtQualNodes.FindNodeOrInsertPos(ID, InsertPos)) { 12540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(EQ->getQualifiers() == Quals); 12550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(EQ, Fast); 12560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 12570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 12580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 12596b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtQuals *New = new (*this, TypeAlignment) ExtQuals(*this, TypeNode, Quals); 12600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQualNodes.InsertNode(New, InsertPos); 12610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(New, Fast); 12620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 12630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 12640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 12650953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getVolatileType(QualType T) { 12660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanT = getCanonicalType(T); 12670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (CanT.isVolatileQualified()) return T; 12680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 12690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 12700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 12710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addVolatile(); 12720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 12730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 12740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 12750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1276f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 1277f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 1278f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 1279f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 1280b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 12810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 12820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 12830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 12840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 12851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12860953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an address space specified, it cannot get 12870953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 12880953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasAddressSpace() && 12890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot be in multiple addr spaces!"); 12900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addAddressSpace(AddressSpace); 12911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1293ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 1294ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1295b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 12960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr) { 1297d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 1298b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 1299d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 13001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13014027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 13026217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 130358f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff if (Pointee->isAnyPointerType()) { 13044027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 13054027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 13064027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 13074027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 13081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 13100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 13110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 13120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 13131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an ObjCGC specified, it cannot get 13150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 13160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasObjCGCAttr() && 13170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot have multiple ObjCGCs!"); 13180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addObjCGCAttr(GCAttr); 13191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1321d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1322a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 1323ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregorstatic QualType getNoReturnCallConvType(ASTContext& Context, QualType T, 1324ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor bool AddNoReturn, 1325ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv CallConv) { 13260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType ResultType; 132743c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (const PointerType *Pointer = T->getAs<PointerType>()) { 132843c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor QualType Pointee = Pointer->getPointeeType(); 1329ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = getNoReturnCallConvType(Context, Pointee, AddNoReturn, 1330ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallConv); 133143c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (ResultType == Pointee) 133243c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1333ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1334ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getPointerType(ResultType); 133543c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else if (const BlockPointerType *BlockPointer 133643c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor = T->getAs<BlockPointerType>()) { 133743c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor QualType Pointee = BlockPointer->getPointeeType(); 1338ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = getNoReturnCallConvType(Context, Pointee, AddNoReturn, 1339ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallConv); 134043c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (ResultType == Pointee) 134143c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1342ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1343ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getBlockPointerType(ResultType); 1344ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor } else if (const FunctionType *F = T->getAs<FunctionType>()) { 1345ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor if (F->getNoReturnAttr() == AddNoReturn && F->getCallConv() == CallConv) 134643c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1347ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 134843c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (const FunctionNoProtoType *FNPT = dyn_cast<FunctionNoProtoType>(F)) { 1349ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getFunctionNoProtoType(FNPT->getResultType(), 1350ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor AddNoReturn, CallConv); 13510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else { 135243c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor const FunctionProtoType *FPT = cast<FunctionProtoType>(F); 13530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType 1354ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor = Context.getFunctionType(FPT->getResultType(), FPT->arg_type_begin(), 1355ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getNumArgs(), FPT->isVariadic(), 1356ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getTypeQuals(), 1357ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->hasExceptionSpec(), 1358ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->hasAnyExceptionSpec(), 1359ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getNumExceptions(), 1360ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->exception_begin(), 1361ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor AddNoReturn, CallConv); 13620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 136343c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else 136443c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1365ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1366ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return Context.getQualifiedType(ResultType, T.getLocalQualifiers()); 1367ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 1368ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1369ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getNoReturnType(QualType T, bool AddNoReturn) { 1370ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return getNoReturnCallConvType(*this, T, AddNoReturn, T.getCallConv()); 1371ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 1372ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1373ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getCallConvType(QualType T, CallingConv CallConv) { 1374ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return getNoReturnCallConvType(*this, T, T.getNoReturnAttr(), CallConv); 13752455636163fdd18581d7fdae816433f886d88213Mike Stump} 13762455636163fdd18581d7fdae816433f886d88213Mike Stump 13775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 13785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 13795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 13805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 13815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 13825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 13835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 13841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 13875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 13881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 13905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 13915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1392467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1393f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 13941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1397f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13996b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ComplexType *New = new (*this, TypeAlignment) ComplexType(T, Canonical); 14005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 14015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 14025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 14035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 14065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 14075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 14085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 14095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 14105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 14115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 14121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 14145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 14155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 14161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 14185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 14195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1420467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1421f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 14221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 14245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1425f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14276b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall PointerType *New = new (*this, TypeAlignment) PointerType(T, Canonical); 14285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 14295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 14305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 14315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getBlockPointerType - Return the uniqued reference to the type for 14345618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 14355618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1436296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1437296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 14385618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 14395618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 14405618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 14411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14425618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 14435618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 14445618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 14455618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 14461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the block pointee type isn't canonical, this won't be a canonical 14485618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 14495618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 1450467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 14515618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 14521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14535618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 14545618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 14555618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1456f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14575618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 14586b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BlockPointerType *New 14596b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) BlockPointerType(T, Canonical); 14605618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 14615618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 14625618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 14635618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 14645618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 14657c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 14667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 146754e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType ASTContext::getLValueReferenceType(QualType T, bool SpelledAsLValue) { 14685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 14695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 14705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 147154e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, SpelledAsLValue); 14725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 14747c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 14757c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 14765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 14777c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 147854e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 147954e14c4db764c0636160d26c5bbf491637c83a76John McCall 14805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 14815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 14825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 148354e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!SpelledAsLValue || InnerRef || !T.isCanonical()) { 148454e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 148554e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getLValueReferenceType(getCanonicalType(PointeeType)); 14867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 14877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 14887c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 14897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 14907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 14917c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 14927c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 14936b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall LValueReferenceType *New 149454e14c4db764c0636160d26c5bbf491637c83a76John McCall = new (*this, TypeAlignment) LValueReferenceType(T, Canonical, 149554e14c4db764c0636160d26c5bbf491637c83a76John McCall SpelledAsLValue); 14967c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 14977c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 149854e14c4db764c0636160d26c5bbf491637c83a76John McCall 14997c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 15007c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 15017c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 15027c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 15037c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 15047c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 15057c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 15067c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 15077c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 150854e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, false); 15097c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 15107c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 15117c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 15127c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 15137c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 15147c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 151554e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 151654e14c4db764c0636160d26c5bbf491637c83a76John McCall 15177c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 15187c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 15197c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 152054e14c4db764c0636160d26c5bbf491637c83a76John McCall if (InnerRef || !T.isCanonical()) { 152154e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 152254e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getRValueReferenceType(getCanonicalType(PointeeType)); 15237c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 15245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 15257c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 15267c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1527f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15306b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall RValueReferenceType *New 15316b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); 15325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 15337c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 15345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 15355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1537f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1538f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 15391eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) { 1540f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1541f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1542f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1543f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1544f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1545f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1546f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1547f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1548f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1549f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1550f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1551f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1552f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 155387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor if (!T.isCanonical() || !Cls->isCanonicalUnqualified()) { 1554f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1555f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1556f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1557f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1558f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1559f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1560f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 15616b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall MemberPointerType *New 15626b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); 1563f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1564f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1565f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1566f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1567f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 15681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getConstantArrayType - Return the unique reference to the type for an 1569fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 15701eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getConstantArrayType(QualType EltTy, 157138aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1572c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1573c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1574923d56d436f750bc1f29db50e641078725558a1bSebastian Redl assert((EltTy->isDependentType() || 1575923d56d436f750bc1f29db50e641078725558a1bSebastian Redl EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && 1576587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1577587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 157838aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 157938aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 158038aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 158138aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 15821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 15840be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 15851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 15871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ConstantArrayType *ATP = 15887192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 15895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 15901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 15925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 15935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1594467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 15951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1596c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 15975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 15981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ConstantArrayType *NewIP = 15997192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1600f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16036b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType *New = new(*this,TypeAlignment) 16046b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 16057192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 16065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 16075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 16085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1610bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1611bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 16127e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 16137e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1614c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 16157e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 16167e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1617c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1618c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1619c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 16206b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType *New = new(*this, TypeAlignment) 16216b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType(EltTy, QualType(), NumElts, ASM, EltTypeQuals, Brackets); 1622c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1623c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1624c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1625c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1626c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1627c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1628898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1629898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 163004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor/// type. 16317e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 16327e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1633898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 16347e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 16357e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1636cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor assert((!NumElts || NumElts->isTypeDependent() || 1637cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor NumElts->isValueDependent()) && 1638898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1639898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 164004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor void *InsertPos = 0; 1641cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayType *Canon = 0; 1642789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor llvm::FoldingSetNodeID ID; 1643cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1644cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor if (NumElts) { 1645cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // Dependently-sized array types that do not have a specified 1646cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // number of elements will have their sizes deduced from an 1647cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // initializer. 1648cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayType::Profile(ID, *this, getCanonicalType(EltTy), ASM, 1649cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor EltTypeQuals, NumElts); 1650cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1651cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor Canon = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1652cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor } 1653cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 165404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *New; 165504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (Canon) { 165604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // We already have a canonical version of this array type; use it as 165704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // the canonical type for a newly-built type. 16586b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16596b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(Canon, 0), 16606b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 166104d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 166204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType CanonEltTy = getCanonicalType(EltTy); 166304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (CanonEltTy == EltTy) { 16646b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16656b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(), 16666b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 1667cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1668789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (NumElts) { 1669789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentSizedArrayType *CanonCheck 1670789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1671789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CanonCheck && "Dependent-sized canonical array type broken"); 1672789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CanonCheck; 1673cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayTypes.InsertNode(New, InsertPos); 1674789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 167504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 167604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType Canon = getDependentSizedArrayType(CanonEltTy, NumElts, 167704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor ASM, EltTypeQuals, 167804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor SourceRange()); 16796b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16806b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, Canon, 16816b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 168204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 168304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 16841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1685898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1686898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1687898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1688898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1689c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1690c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1691c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1692c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 16930be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1694c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1695c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 16961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (IncompleteArrayType *ATP = 1697c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1698c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1699c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1700c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1701c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1702c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1703c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1704467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 1705f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 17062bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1707c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1708c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1709c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1710c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1711f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 17122bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1713c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 17146b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType *New = new (*this, TypeAlignment) 17156b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType(EltTy, Canonical, ASM, EltTypeQuals); 1716c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1717c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1718c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1719c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1720fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1721fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 172273322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 172373322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 172482287d19ded35248c4ce6a425ce74116a13ce44eJohn ThompsonQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts, 172582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson bool IsAltiVec, bool IsPixel) { 17265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 17271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1728f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 172973322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 17301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 17325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 173382287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VectorType::Profile(ID, vecType, NumElts, Type::Vector, 173482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson IsAltiVec, IsPixel); 17355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 17365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 17375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 17385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 17405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 17415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 174282287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson if (!vecType.isCanonical() || IsAltiVec || IsPixel) { 174382287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Canonical = getVectorType(getCanonicalType(vecType), 174482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson NumElts, false, false); 17451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 17475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1748f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 17495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17506b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType *New = new (*this, TypeAlignment) 175182287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VectorType(vecType, NumElts, Canonical, IsAltiVec, IsPixel); 17525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 17535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 17545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 17555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1757213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 175873322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1759213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 176073322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 17611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1762f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1763213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 17641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 176573322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 176673322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 176782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VectorType::Profile(ID, vecType, NumElts, Type::ExtVector, false, false); 176873322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 176973322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 177073322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 177173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 177273322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 177373322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 177473322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 1775467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!vecType.isCanonical()) { 1776213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 17771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 177873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 177973322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1780f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 178173322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 17826b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType *New = new (*this, TypeAlignment) 17836b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType(vecType, NumElts, Canonical); 178473322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 178573322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 178673322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 178773322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 178873322924127c873c13101b705dd823f5539ffa5fSteve Naroff 17891eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 17909cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 17919cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 17922ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor llvm::FoldingSetNodeID ID; 17931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), 17942ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr); 17951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17962ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor void *InsertPos = 0; 17972ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *Canon 17982ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 17992ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *New; 18002ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (Canon) { 18012ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // We already have a canonical version of this array type; use it as 18022ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // the canonical type for a newly-built type. 18036b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 18046b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), 18056b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall SizeExpr, AttrLoc); 18062ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 18072ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType CanonVecTy = getCanonicalType(vecType); 18082ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (CanonVecTy == vecType) { 18096b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 18106b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, 18116b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall AttrLoc); 1812789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 1813789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentSizedExtVectorType *CanonCheck 1814789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1815789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CanonCheck && "Dependent-sized ext_vector canonical type broken"); 1816789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CanonCheck; 18172ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorTypes.InsertNode(New, InsertPos); 18182ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 18192ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType Canon = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, 18202ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SourceLocation()); 18216b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 18226b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, Canon, SizeExpr, AttrLoc); 18232ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 18242ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 18251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18269cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 18279cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 18289cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 18299cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 183072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 18315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1832ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getFunctionNoProtoType(QualType ResultTy, bool NoReturn, 1833ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv CallConv) { 18345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 18355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 18365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 1837f82b4e85b1219295cad4b5851b035575bc293010John McCall FunctionNoProtoType::Profile(ID, ResultTy, NoReturn, CallConv); 18381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 18401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionNoProtoType *FT = 184172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 18425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 18431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1845ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor if (!ResultTy.isCanonical() || 184604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall getCanonicalCallConv(CallConv) != CallConv) { 1847ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy), NoReturn, 184804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall getCanonicalCallConv(CallConv)); 18491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 185172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 185272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1853f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 18545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18566b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType *New = new (*this, TypeAlignment) 1857f82b4e85b1219295cad4b5851b035575bc293010John McCall FunctionNoProtoType(ResultTy, Canonical, NoReturn, CallConv); 18585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 185972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 18605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 18615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 18625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 18645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 186561710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1866971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1867465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1868465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 1869ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor const QualType *ExArray, bool NoReturn, 1870ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv CallConv) { 18715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 18725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 18735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 187472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1875465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1876f82b4e85b1219295cad4b5851b035575bc293010John McCall NumExs, ExArray, NoReturn, CallConv); 18775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 18791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionProtoType *FTP = 188072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 18815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1882465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1883465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 188454e14c4db764c0636160d26c5bbf491637c83a76John McCall bool isCanonical = !hasExceptionSpec && ResultTy.isCanonical(); 18855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 188654e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!ArgArray[i].isCanonicalAsParam()) 18875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 18885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1890465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 18915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 189204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!isCanonical || getCanonicalCallConv(CallConv) != CallConv) { 18935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 18945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 18955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 189654e14c4db764c0636160d26c5bbf491637c83a76John McCall CanonicalArgs.push_back(getCanonicalParamType(ArgArray[i])); 1897465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1898f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1899beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 190047259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor isVariadic, TypeQuals, false, 1901ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor false, 0, 0, NoReturn, 190204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall getCanonicalCallConv(CallConv)); 1903465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 19045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 190572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 190672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1907f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 19085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1909465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 191072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1911465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1912465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 19131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FunctionProtoType *FTP = 1914465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1915465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 19166b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumExs*sizeof(QualType), TypeAlignment); 191772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1918465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1919ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ExArray, NumExs, Canonical, NoReturn, CallConv); 19205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 192172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 19225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 19235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 19245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19253cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall#ifndef NDEBUG 19263cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallstatic bool NeedsInjectedClassNameType(const RecordDecl *D) { 19273cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (!isa<CXXRecordDecl>(D)) return false; 19283cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall const CXXRecordDecl *RD = cast<CXXRecordDecl>(D); 19293cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (isa<ClassTemplatePartialSpecializationDecl>(RD)) 19303cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return true; 19313cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (RD->getDescribedClassTemplate() && 19323cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall !isa<ClassTemplateSpecializationDecl>(RD)) 19333cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return true; 19343cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return false; 19353cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall} 19363cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall#endif 19373cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 19383cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall/// getInjectedClassNameType - Return the unique reference to the 19393cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall/// injected class name type for the specified templated declaration. 19403cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallQualType ASTContext::getInjectedClassNameType(CXXRecordDecl *Decl, 19413cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall QualType TST) { 19423cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(NeedsInjectedClassNameType(Decl)); 19433cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (Decl->TypeForDecl) { 19443cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(isa<InjectedClassNameType>(Decl->TypeForDecl)); 19453cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } else if (CXXRecordDecl *PrevDecl 19463cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall = cast_or_null<CXXRecordDecl>(Decl->getPreviousDeclaration())) { 19473cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(PrevDecl->TypeForDecl && "previous declaration has no type"); 19483cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall Decl->TypeForDecl = PrevDecl->TypeForDecl; 19493cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(isa<InjectedClassNameType>(Decl->TypeForDecl)); 19503cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } else { 19513cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall Decl->TypeForDecl = new (*this, TypeAlignment) 19523cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall InjectedClassNameType(Decl, TST, TST->getCanonicalTypeInternal()); 19533cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall Types.push_back(Decl->TypeForDecl); 19543cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } 19553cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return QualType(Decl->TypeForDecl, 0); 19563cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall} 19573cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 19582ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 19592ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 196019c8576b7328f4dc2d07682f5da552875c1912efJohn McCallQualType ASTContext::getTypeDeclType(const TypeDecl *Decl, 196119c8576b7328f4dc2d07682f5da552875c1912efJohn McCall const TypeDecl* PrevDecl) { 19621e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 19632ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 19641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 196519c8576b7328f4dc2d07682f5da552875c1912efJohn McCall if (const TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 19662ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1967fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1968fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 196919c8576b7328f4dc2d07682f5da552875c1912efJohn McCall } else if (const ObjCInterfaceDecl *ObjCInterface 19709fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump = dyn_cast<ObjCInterfaceDecl>(Decl)) 19712ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 197249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 197319c8576b7328f4dc2d07682f5da552875c1912efJohn McCall if (const RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1974566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1975566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 19763cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall else { 19773cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(!NeedsInjectedClassNameType(Record)); 19786b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) RecordType(Record); 19793cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } 198019c8576b7328f4dc2d07682f5da552875c1912efJohn McCall } else if (const EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1981566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1982566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1983f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 19846b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) EnumType(Enum); 198519c8576b7328f4dc2d07682f5da552875c1912efJohn McCall } else if (const UnresolvedUsingTypenameDecl *Using = 1986ed97649e9574b9d854fa4d6109c9333ae0993554John McCall dyn_cast<UnresolvedUsingTypenameDecl>(Decl)) { 1987ed97649e9574b9d854fa4d6109c9333ae0993554John McCall Decl->TypeForDecl = new (*this, TypeAlignment) UnresolvedUsingType(Using); 19889fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else 19892ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 199049aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 19914b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 199249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 19932ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 19942ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 19955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 19965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 199719c8576b7328f4dc2d07682f5da552875c1912efJohn McCallQualType ASTContext::getTypedefType(const TypedefDecl *Decl) { 19985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 19991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2000f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 20016b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new(*this, TypeAlignment) 20026b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypedefType(Type::Typedef, Decl, Canonical); 20035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 20045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 20055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 20065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 200749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// \brief Retrieve a substitution-result type. 200849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallQualType 200949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallASTContext::getSubstTemplateTypeParmType(const TemplateTypeParmType *Parm, 201049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType Replacement) { 2011467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(Replacement.isCanonical() 201249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall && "replacement types must always be canonical"); 201349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 201449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall llvm::FoldingSetNodeID ID; 201549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType::Profile(ID, Parm, Replacement); 201649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall void *InsertPos = 0; 201749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType *SubstParm 201849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall = SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 201949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 202049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall if (!SubstParm) { 202149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstParm = new (*this, TypeAlignment) 202249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType(Parm, Replacement); 202349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall Types.push_back(SubstParm); 202449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos); 202549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 202649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 202749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return QualType(SubstParm, 0); 202849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall} 202949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 2030fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 20311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parameter or parameter pack with the given depth, index, and (optionally) 203276e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 20331eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 203476e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 2035fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 2036fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 203776e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 2038fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 20391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateTypeParmType *TypeParm 2040fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 2041fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 2042fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 2043fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 20441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 204576e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson if (Name) { 204676e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 20476b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 20486b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack, Name, Canon); 2049789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 2050789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor TemplateTypeParmType *TypeCheck 2051789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 2052789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!TypeCheck && "Template type parameter canonical type broken"); 2053789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)TypeCheck; 205476e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 20556b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 20566b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack); 2057fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 2058fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 2059fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 2060fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 2061fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 2062fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 2063fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 20643cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallTypeSourceInfo * 20653cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallASTContext::getTemplateSpecializationTypeInfo(TemplateName Name, 20663cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall SourceLocation NameLoc, 20673cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall const TemplateArgumentListInfo &Args, 20683cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall QualType CanonType) { 20693cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall QualType TST = getTemplateSpecializationType(Name, Args, CanonType); 20703cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 20713cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TypeSourceInfo *DI = CreateTypeSourceInfo(TST); 20723cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TemplateSpecializationTypeLoc TL 20733cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall = cast<TemplateSpecializationTypeLoc>(DI->getTypeLoc()); 20743cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setTemplateNameLoc(NameLoc); 20753cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setLAngleLoc(Args.getLAngleLoc()); 20763cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setRAngleLoc(Args.getRAngleLoc()); 20773cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) 20783cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setArgLocInfo(i, Args[i].getLocInfo()); 20793cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return DI; 20803cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall} 20813cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 20821eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 20837532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 2084d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo &Args, 2085833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall QualType Canon) { 2086d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall unsigned NumArgs = Args.size(); 2087d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 2088833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall llvm::SmallVector<TemplateArgument, 4> ArgVec; 2089833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.reserve(NumArgs); 2090833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall for (unsigned i = 0; i != NumArgs; ++i) 2091833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.push_back(Args[i].getArgument()); 2092833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 2093833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return getTemplateSpecializationType(Template, ArgVec.data(), NumArgs, Canon); 2094833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall} 2095833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 2096833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallQualType 2097833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallASTContext::getTemplateSpecializationType(TemplateName Template, 20987532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 20997532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 21007532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 2101b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (!Canon.isNull()) 2102b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = getCanonicalType(Canon); 2103b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor else { 2104b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor // Build the canonical template specialization type. 21051275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateName CanonTemplate = getCanonicalTemplateName(Template); 21061275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::SmallVector<TemplateArgument, 4> CanonArgs; 21071275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.reserve(NumArgs); 21081275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor for (unsigned I = 0; I != NumArgs; ++I) 21091275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.push_back(getCanonicalTemplateArgument(Args[I])); 21101275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 21111275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Determine whether this canonical template specialization type already 21121275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // exists. 21131275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor llvm::FoldingSetNodeID ID; 21141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType::Profile(ID, CanonTemplate, 2115828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor CanonArgs.data(), NumArgs, *this); 21161275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 21171275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor void *InsertPos = 0; 21181275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateSpecializationType *Spec 21191275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 21201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21211275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor if (!Spec) { 21221275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate a new canonical template specialization type. 21231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 21241275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor sizeof(TemplateArgument) * NumArgs), 21256b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 21261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Spec = new (Mem) TemplateSpecializationType(*this, CanonTemplate, 21271275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs.data(), NumArgs, 2128b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon); 21291275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Types.push_back(Spec); 21301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 21311275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 21321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2133b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (Canon.isNull()) 2134b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = QualType(Spec, 0); 21351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(Canon->isDependentType() && 21361275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor "Non-dependent template-id type must have a canonical type"); 2137b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor } 2138fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 21391275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate the (non-canonical) template specialization type, but don't 21401275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // try to unique it: these types typically have location information that 21411275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // we don't unique and don't want to lose. 21421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 214340808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 21446b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 21451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType *Spec 21461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump = new (Mem) TemplateSpecializationType(*this, Template, Args, NumArgs, 2147828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor Canon); 21481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 214955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 21501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(Spec, 0); 215155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 215255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 21531eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 2154ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 2155e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 2156e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 2157ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 2158e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 2159e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 21601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualifiedNameType *T 2161e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 2162e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 2163e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 2164e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 2165789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor QualType Canon = NamedType; 2166789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (!Canon.isCanonical()) { 2167789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor Canon = getCanonicalType(NamedType); 2168789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor QualifiedNameType *CheckT 2169789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 2170789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckT && "Qualified name canonical type broken"); 2171789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckT; 2172789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 2173789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 2174789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor T = new (*this) QualifiedNameType(NNS, NamedType, Canon); 2175e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 2176e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 2177e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 2178e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 2179e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 21801eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 2181d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 2182d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 2183d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 2184d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2185d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 2186d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 2187d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 2188d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 2189d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2190d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2191d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 2192d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 2193d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2194d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 21951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypenameType *T 2196d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 2197d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 2198d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 2199d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2200d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 2201d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 2202d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 22031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 2204d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2205d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 22061eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 22071eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpASTContext::getTypenameType(NestedNameSpecifier *NNS, 22081734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 22091734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 22101734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 22111734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 2212789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor llvm::FoldingSetNodeID ID; 2213789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 2214789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 2215789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor void *InsertPos = 0; 2216789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor TypenameType *T 2217789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 2218789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (T) 2219789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor return QualType(T, 0); 2220789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 22211734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 22221734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 22231734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 22241734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 22251734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 2226183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall = CanonType->getAs<TemplateSpecializationType>(); 22271734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 22281734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 22291734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 22301734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 22311734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 2232789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor TypenameType *CheckT 2233789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 2234789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckT && "Typename canonical type is broken"); (void)CheckT; 2235789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 22361734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 22371734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 22381734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 22391734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 22401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 22411734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 22421734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 22437da2431c23ef1ee8acb114e39692246e1801afc2John McCallQualType 22447da2431c23ef1ee8acb114e39692246e1801afc2John McCallASTContext::getElaboratedType(QualType UnderlyingType, 22457da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::TagKind Tag) { 22467da2431c23ef1ee8acb114e39692246e1801afc2John McCall llvm::FoldingSetNodeID ID; 22477da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType::Profile(ID, UnderlyingType, Tag); 22481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22497da2431c23ef1ee8acb114e39692246e1801afc2John McCall void *InsertPos = 0; 22507da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 22517da2431c23ef1ee8acb114e39692246e1801afc2John McCall if (T) 22527da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 22537da2431c23ef1ee8acb114e39692246e1801afc2John McCall 2254789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor QualType Canon = UnderlyingType; 2255789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (!Canon.isCanonical()) { 2256789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor Canon = getCanonicalType(Canon); 2257789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor ElaboratedType *CheckT = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 2258789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckT && "Elaborated canonical type is broken"); (void)CheckT; 2259789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 22607da2431c23ef1ee8acb114e39692246e1801afc2John McCall 22617da2431c23ef1ee8acb114e39692246e1801afc2John McCall T = new (*this) ElaboratedType(UnderlyingType, Tag, Canon); 22627da2431c23ef1ee8acb114e39692246e1801afc2John McCall Types.push_back(T); 22637da2431c23ef1ee8acb114e39692246e1801afc2John McCall ElaboratedTypes.InsertNode(T, InsertPos); 22647da2431c23ef1ee8acb114e39692246e1801afc2John McCall return QualType(T, 0); 22657da2431c23ef1ee8acb114e39692246e1801afc2John McCall} 22667da2431c23ef1ee8acb114e39692246e1801afc2John McCall 226788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 226888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 226988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 227088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 22712e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 227288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 227388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 227454e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic bool areSortedAndUniqued(ObjCProtocolDecl **Protocols, 227554e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned NumProtocols) { 227654e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols == 0) return true; 227754e14c4db764c0636160d26c5bbf491637c83a76John McCall 227854e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 1; i != NumProtocols; ++i) 227954e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!CmpProtocolNames(Protocols[i-1], Protocols[i])) 228054e14c4db764c0636160d26c5bbf491637c83a76John McCall return false; 228154e14c4db764c0636160d26c5bbf491637c83a76John McCall return true; 228254e14c4db764c0636160d26c5bbf491637c83a76John McCall} 228354e14c4db764c0636160d26c5bbf491637c83a76John McCall 228454e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic void SortAndUniqueProtocols(ObjCProtocolDecl **Protocols, 228588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 228688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 22871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 228888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 228988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 229088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 229188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 229288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 229388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 229488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 229588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2296d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 2297d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff/// the given interface decl and the conforming protocol list. 229814108da7f7fc059772711e4ffee1322a27b152a7Steve NaroffQualType ASTContext::getObjCObjectPointerType(QualType InterfaceT, 22991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCProtocolDecl **Protocols, 2300a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian unsigned NumProtocols, 2301a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian unsigned Quals) { 2302d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff llvm::FoldingSetNodeID ID; 230314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ObjCObjectPointerType::Profile(ID, InterfaceT, Protocols, NumProtocols); 2304a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian Qualifiers Qs = Qualifiers::fromCVRMask(Quals); 2305d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 2306d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 2307d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff if (ObjCObjectPointerType *QT = 2308d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 2309a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian return getQualifiedType(QualType(QT, 0), Qs); 2310d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 231154e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 231254e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 231354e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!InterfaceT.isCanonical() || 231454e14c4db764c0636160d26c5bbf491637c83a76John McCall !areSortedAndUniqued(Protocols, NumProtocols)) { 231554e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!areSortedAndUniqued(Protocols, NumProtocols)) { 231654e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 231754e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 231854e14c4db764c0636160d26c5bbf491637c83a76John McCall 231954e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 232054e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 232154e14c4db764c0636160d26c5bbf491637c83a76John McCall 232254e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 232354e14c4db764c0636160d26c5bbf491637c83a76John McCall &Sorted[0], UniqueCount); 232454e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 232554e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCObjectPointerType(getCanonicalType(InterfaceT), 232654e14c4db764c0636160d26c5bbf491637c83a76John McCall Protocols, NumProtocols); 232754e14c4db764c0636160d26c5bbf491637c83a76John McCall } 232854e14c4db764c0636160d26c5bbf491637c83a76John McCall 232954e14c4db764c0636160d26c5bbf491637c83a76John McCall // Regenerate InsertPos. 233054e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 233154e14c4db764c0636160d26c5bbf491637c83a76John McCall } 233254e14c4db764c0636160d26c5bbf491637c83a76John McCall 2333fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor // No match. 2334fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor unsigned Size = sizeof(ObjCObjectPointerType) 2335fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor + NumProtocols * sizeof(ObjCProtocolDecl *); 2336fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor void *Mem = Allocate(Size, TypeAlignment); 2337fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor ObjCObjectPointerType *QType = new (Mem) ObjCObjectPointerType(Canonical, 2338fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor InterfaceT, 2339fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor Protocols, 2340fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor NumProtocols); 23411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2342d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff Types.push_back(QType); 2343d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 2344a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian return getQualifiedType(QualType(QType, 0), Qs); 2345d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 234688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2347c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// getObjCInterfaceType - Return the unique reference to the type for the 2348c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff/// specified ObjC interface decl. The list of protocols is optional. 2349c15cb2af27514ecc879daba9aa01389c5203685dSteve NaroffQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, 2350a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 23514b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 2352c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 23531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23544b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 2355c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (ObjCInterfaceType *QT = 2356c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 23574b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 23581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 235954e14c4db764c0636160d26c5bbf491637c83a76John McCall // Sort the protocol list alphabetically to canonicalize it. 236054e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 236154e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols && !areSortedAndUniqued(Protocols, NumProtocols)) { 236254e14c4db764c0636160d26c5bbf491637c83a76John McCall llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(NumProtocols); 236354e14c4db764c0636160d26c5bbf491637c83a76John McCall std::copy(Protocols, Protocols + NumProtocols, Sorted.begin()); 23644b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 236554e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 236654e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 236724fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 236854e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getObjCInterfaceType(Decl, &Sorted[0], UniqueCount); 236954e14c4db764c0636160d26c5bbf491637c83a76John McCall 237054e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos); 237154e14c4db764c0636160d26c5bbf491637c83a76John McCall } 237254e14c4db764c0636160d26c5bbf491637c83a76John McCall 2373fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor unsigned Size = sizeof(ObjCInterfaceType) 2374fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor + NumProtocols * sizeof(ObjCProtocolDecl *); 2375fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor void *Mem = Allocate(Size, TypeAlignment); 2376fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor ObjCInterfaceType *QType = new (Mem) ObjCInterfaceType(Canonical, 2377fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor const_cast<ObjCInterfaceDecl*>(Decl), 2378fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor Protocols, 2379fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor NumProtocols); 238024fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 238124fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis Types.push_back(QType); 238254e14c4db764c0636160d26c5bbf491637c83a76John McCall ObjCInterfaceTypes.InsertNode(QType, InsertPos); 238324fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis return QualType(QType, 0); 238424fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis} 238524fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 238672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 238772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 23889752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 23891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// DeclRefExpr's. This doesn't effect the type checker, since it operates 23909752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 239172564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 2392dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType *toe; 2393b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (tofExpr->isTypeDependent()) { 2394b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor llvm::FoldingSetNodeID ID; 2395b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType::Profile(ID, *this, tofExpr); 23961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2397b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor void *InsertPos = 0; 2398b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType *Canon 2399b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); 2400b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (Canon) { 2401b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // We already have a "canonical" version of an identical, dependent 2402b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // typeof(expr) type. Use that as our canonical type. 24036b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, 2404b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor QualType((TypeOfExprType*)Canon, 0)); 2405b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2406b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor else { 2407b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // Build a new, canonical typeof(expr) type. 24086b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon 24096b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) DependentTypeOfExprType(*this, tofExpr); 2410b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); 2411b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor toe = Canon; 2412b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2413b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } else { 2414dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType Canonical = getCanonicalType(tofExpr->getType()); 24156b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, Canonical); 2416dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 24179752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 24189752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 2419d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2420d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 24219752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 24229752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 24239752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 24241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 24259752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 2426d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 2427f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 24286b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeOfType *tot = new (*this, TypeAlignment) TypeOfType(tofType, Canonical); 24299752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 24309752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 2431d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2432d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 243360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 243460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 243560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 2436a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 2437a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 24381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 243960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 244060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 244160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 244260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 244360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 244460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 244560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 244660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 244760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 244860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 244960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 245060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 245160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 245260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 245360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 24541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 245560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 24561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 245860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 245960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 246060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 24611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 246260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 246360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 246460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 2465395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 2466395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 2467395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 24681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 2469395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 2470395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 2471dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor DecltypeType *dt; 24729d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (e->isTypeDependent()) { 24739d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor llvm::FoldingSetNodeID ID; 24749d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType::Profile(ID, *this, e); 24751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24769d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor void *InsertPos = 0; 24779d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType *Canon 24789d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); 24799d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (Canon) { 24809d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // We already have a "canonical" version of an equivalent, dependent 24819d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // decltype type. Use that as our canonical type. 24826b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, DependentTy, 24839d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor QualType((DecltypeType*)Canon, 0)); 24849d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 24859d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor else { 24869d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // Build a new, canonical typeof(expr) type. 24876b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon = new (*this, TypeAlignment) DependentDecltypeType(*this, e); 24889d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeTypes.InsertNode(Canon, InsertPos); 24899d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor dt = Canon; 24909d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 24919d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } else { 2492dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType T = getDecltypeForExpr(e, *this); 24936b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, T, getCanonicalType(T)); 2494dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 2495395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 2496395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 2497395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 2498395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 24995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 25005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 2501e607ed068334bacb8d7b093996b4671c6ca79e25Mike StumpQualType ASTContext::getTagDeclType(const TagDecl *Decl) { 2502d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 2503e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // FIXME: What is the design on getTagDeclType when it requires casting 2504e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // away const? mutable? 2505e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump return getTypeDeclType(const_cast<TagDecl*>(Decl)); 25065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 25075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 25091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 25101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// needs to agree with the definition in <stddef.h>. 2511a3ccda58913cc1a4b8564e349448b12acc462da7Anders CarlssonCanQualType ASTContext::getSizeType() const { 2512b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 25135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 25145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 251564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 251664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 251764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 251864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 251964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 252064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 252164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 252264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 252364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 252464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 252564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 252664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 252764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 252864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 25298b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 25308b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 25318b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 2532b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 25338b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 25348b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 2535e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2536e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 2537e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2538e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 253954e14c4db764c0636160d26c5bbf491637c83a76John McCallCanQualType ASTContext::getCanonicalParamType(QualType T) { 254054e14c4db764c0636160d26c5bbf491637c83a76John McCall // Push qualifiers into arrays, and then discard any remaining 254154e14c4db764c0636160d26c5bbf491637c83a76John McCall // qualifiers. 254254e14c4db764c0636160d26c5bbf491637c83a76John McCall T = getCanonicalType(T); 254354e14c4db764c0636160d26c5bbf491637c83a76John McCall const Type *Ty = T.getTypePtr(); 254454e14c4db764c0636160d26c5bbf491637c83a76John McCall 254554e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Result; 254654e14c4db764c0636160d26c5bbf491637c83a76John McCall if (isa<ArrayType>(Ty)) { 254754e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getArrayDecayedType(QualType(Ty,0)); 254854e14c4db764c0636160d26c5bbf491637c83a76John McCall } else if (isa<FunctionType>(Ty)) { 254954e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getPointerType(QualType(Ty, 0)); 255054e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 255154e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = QualType(Ty, 0); 255254e14c4db764c0636160d26c5bbf491637c83a76John McCall } 255354e14c4db764c0636160d26c5bbf491637c83a76John McCall 255454e14c4db764c0636160d26c5bbf491637c83a76John McCall return CanQualType::CreateUnsafe(Result); 255554e14c4db764c0636160d26c5bbf491637c83a76John McCall} 255654e14c4db764c0636160d26c5bbf491637c83a76John McCall 255777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 255877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 255977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 256077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 256177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 256277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 256350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas GregorCanQualType ASTContext::getCanonicalType(QualType T) { 25640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 25650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ptr = Quals.strip(T); 25660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanType = Ptr->getCanonicalTypeInternal(); 25670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 25680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // The canonical internal type will be the canonical type *except* 25690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // that we push type qualifiers down through array types. 25701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If there are no new qualifiers to push down, stop here. 25720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!Quals.hasQualifiers()) 257350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(CanType); 2574c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 25750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the type qualifiers are on an array type, get the canonical 25760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type of the array with the qualifiers applied to the element 25770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type. 2578c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 2579c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 25800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return CanQualType::CreateUnsafe(getQualifiedType(CanType, Quals)); 25811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 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(AT->getElementType(), Quals); 2585c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 25861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2587c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 258850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 258950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getConstantArrayType(NewEltTy, CAT->getSize(), 259050d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor CAT->getSizeModifier(), 25910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2592c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 259350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 259450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 25950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 25961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2597898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 259850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 259950d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getDependentSizedArrayType(NewEltTy, 2600bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2601bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 260250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getSizeModifier(), 26030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 260487a924e37dc40c6e3e2b33d1dbd646aeccf4c15bDouglas Gregor DSAT->getBracketsRange())->getCanonicalTypeInternal()); 2605898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2606c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 260750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(getVariableArrayType(NewEltTy, 2608bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 2609bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr()->Retain() : 0, 261050d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getSizeModifier(), 26110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 261250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getBracketsRange())); 2613c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 2614c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 261528e318cc6008c2bc008f0caee70dc736a03d6289Chandler CarruthQualType ASTContext::getUnqualifiedArrayType(QualType T, 261628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth Qualifiers &Quals) { 26175535c38a2fcface6c13bc8bbeca66882de2fa227Chandler Carruth Quals = T.getQualifiers(); 261828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (!isa<ArrayType>(T)) { 26195535c38a2fcface6c13bc8bbeca66882de2fa227Chandler Carruth return T.getUnqualifiedType(); 262028e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 262128e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 262228e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth const ArrayType *AT = cast<ArrayType>(T); 262328e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth QualType Elt = AT->getElementType(); 2624c1ae0a8b0022a9fbb50d3413139f36ec5d8a63beZhongxing Xu QualType UnqualElt = getUnqualifiedArrayType(Elt, Quals); 262528e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (Elt == UnqualElt) 262628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return T; 262728e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 262828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(T)) { 262928e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getConstantArrayType(UnqualElt, CAT->getSize(), 263028e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth CAT->getSizeModifier(), 0); 263128e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 263228e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 263328e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(T)) { 263428e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getIncompleteArrayType(UnqualElt, IAT->getSizeModifier(), 0); 263528e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 263628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 263728e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth const DependentSizedArrayType *DSAT = cast<DependentSizedArrayType>(T); 263828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getDependentSizedArrayType(UnqualElt, DSAT->getSizeExpr()->Retain(), 263928e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth DSAT->getSizeModifier(), 0, 264028e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth SourceRange()); 264128e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth} 264228e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 264380ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCallDeclarationName ASTContext::getNameForTemplate(TemplateName Name) { 264480ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (TemplateDecl *TD = Name.getAsTemplateDecl()) 264580ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return TD->getDeclName(); 264680ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 264780ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (DependentTemplateName *DTN = Name.getAsDependentTemplateName()) { 264880ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (DTN->isIdentifier()) { 264980ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return DeclarationNames.getIdentifier(DTN->getIdentifier()); 265080ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } else { 265180ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return DeclarationNames.getCXXOperatorName(DTN->getOperator()); 265280ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } 265380ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } 265480ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 26550bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall OverloadedTemplateStorage *Storage = Name.getAsOverloadedTemplate(); 26560bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(Storage); 26570bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall return (*Storage->begin())->getDeclName(); 265880ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall} 265980ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 266025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 266125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 266225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 266325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 266497fbaa2a38804268a024f1a104b43fcf8b4411b0Argyrios Kyrtzidis return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); 266525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 26660bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(!Name.getAsOverloadedTemplate()); 26671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 266825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 266925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 267025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 267125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 267225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 2673db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregorbool ASTContext::hasSameTemplateName(TemplateName X, TemplateName Y) { 2674db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor X = getCanonicalTemplateName(X); 2675db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor Y = getCanonicalTemplateName(Y); 2676db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor return X.getAsVoidPointer() == Y.getAsVoidPointer(); 2677db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor} 2678db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor 26791eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateArgument 26801275ae098acda31fe0e434510c729fcfed0458a1Douglas GregorASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) { 26811275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor switch (Arg.getKind()) { 26821275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Null: 26831275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 26841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26851275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Expression: 26861275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 26871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26881275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Declaration: 2689833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(Arg.getAsDecl()->getCanonicalDecl()); 26901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2691788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor case TemplateArgument::Template: 2692788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor return TemplateArgument(getCanonicalTemplateName(Arg.getAsTemplate())); 2693788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor 26941275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Integral: 2695833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(*Arg.getAsIntegral(), 26961275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getIntegralType())); 26971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26981275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Type: 2699833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(getCanonicalType(Arg.getAsType())); 27001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27011275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Pack: { 27021275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Allocate in ASTContext 27031275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument *CanonArgs = new TemplateArgument[Arg.pack_size()]; 27041275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor unsigned Idx = 0; 27051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (TemplateArgument::pack_iterator A = Arg.pack_begin(), 27061275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor AEnd = Arg.pack_end(); 27071275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor A != AEnd; (void)++A, ++Idx) 27081275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs[Idx] = getCanonicalTemplateArgument(*A); 27091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27101275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument Result; 27111275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Result.setArgumentPack(CanonArgs, Arg.pack_size(), false); 27121275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Result; 27131275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 27141275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 27151275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 27161275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Silence GCC warning 27171275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor assert(false && "Unhandled template argument kind"); 27181275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(); 27191275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor} 27201275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 2721d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 2722d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 27231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!NNS) 2724d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2725d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2726d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 2727d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 2728d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 27291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 2730d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 2731d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 2732d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2733d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 2734d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 2735d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 2736d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 2737d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2738d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 2739d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 2740d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 27411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 0, 27421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 2743d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 2744d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2745d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2746d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 2747d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 2748d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2749d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2750d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2751d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2752d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2753d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2754d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2755c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2756c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2757c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 2758a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor if (!T.hasLocalQualifiers()) { 2759c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2760c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2761c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2762c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 27631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Handle the common negative case fast. 2765c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 27660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!isa<ArrayType>(CType)) 2767c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 27681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Apply any qualifiers from the array type to the element type. This 2770c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2771c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 27721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2773c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2774c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 277550d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor // we must propagate them down into the element type. 27760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 27770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 27780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ty = Qs.strip(T.getDesugaredType()); 27791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2780c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2781c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 27820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ATy == 0 || Qs.empty()) 2783c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 27841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2785c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2786c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2787c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2788c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 27890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(ATy->getElementType(), Qs); 27901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2791c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2792c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2793c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 27940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2795c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2796c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2797c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 27980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 2799898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 28001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const DependentSizedArrayType *DSAT 2801898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2802898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 28031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getDependentSizedArrayType(NewEltTy, 2804bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2805bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 2806898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 28070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 28087e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 28091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2810c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 28117e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 2812bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 28130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getSizeExpr()->Retain() : 0, 2814c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 28150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 28167e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 281777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 281877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 281977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2820e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2821e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2822e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2823e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2824e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2825e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2826e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2827c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2828c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2829c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2830c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2831c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2832c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 28331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2834c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2835e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2836e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 28370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getQualifiedType(PtrTy, PrettyArrayType->getIndexTypeQualifiers()); 2838e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2839e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 28405e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas GregorQualType ASTContext::getBaseElementType(QualType QT) { 28410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 28425e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor while (true) { 28430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *UT = Qs.strip(QT); 28445e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor if (const ArrayType *AT = getAsArrayType(QualType(UT,0))) { 28455e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor QT = AT->getElementType(); 28466dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump } else { 28470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qs.apply(QT); 28485e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 28495e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor } 28505e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor} 28515e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor 2852fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders CarlssonQualType ASTContext::getBaseElementType(const ArrayType *AT) { 2853fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson QualType ElemTy = AT->getElementType(); 28541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2855fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson if (const ArrayType *AT = getAsArrayType(ElemTy)) 2856fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson return getBaseElementType(AT); 28571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28586183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 28596183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 28606183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 28610de78998e7bda473b408437053e48661b510d453Fariborz Jahanian/// getConstantArrayElementCount - Returns number of constant array elements. 28621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpuint64_t 28630de78998e7bda473b408437053e48661b510d453Fariborz JahanianASTContext::getConstantArrayElementCount(const ConstantArrayType *CA) const { 28640de78998e7bda473b408437053e48661b510d453Fariborz Jahanian uint64_t ElementCount = 1; 28650de78998e7bda473b408437053e48661b510d453Fariborz Jahanian do { 28660de78998e7bda473b408437053e48661b510d453Fariborz Jahanian ElementCount *= CA->getSize().getZExtValue(); 28670de78998e7bda473b408437053e48661b510d453Fariborz Jahanian CA = dyn_cast<ConstantArrayType>(CA->getElementType()); 28680de78998e7bda473b408437053e48661b510d453Fariborz Jahanian } while (CA); 28690de78998e7bda473b408437053e48661b510d453Fariborz Jahanian return ElementCount; 28700de78998e7bda473b408437053e48661b510d453Fariborz Jahanian} 28710de78998e7bda473b408437053e48661b510d453Fariborz Jahanian 28725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 28735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2874a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2875183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) 28765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2877a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2878183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall assert(T->getAs<BuiltinType>() && "getFloatingRank(): not a floating type"); 2879183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall switch (T->getAs<BuiltinType>()->getKind()) { 2880a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 28815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 28825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 28835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 28845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 28855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 28865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 28881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// point or a complex type (based on typeDomain/typeSize). 2889716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2890716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 28911361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 28921361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 28931361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 28941361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 28951361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2896716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2897f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2898f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2899f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2900f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2901f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 29021361b11066239ea15764a2a844405352d87296b3Chris Lattner 29031361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 29041361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 29051361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 29061361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 29071361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 29081361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 29095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 29105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 29115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 29127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 29137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 29147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 29151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 2916a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2917a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2918a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 29191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2920a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2921fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2922a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2923fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2924fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 29255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 29265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2927f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2928f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2929f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2930f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2931467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(T->isCanonicalUnqualified() && "T should be canonicalized"); 2932f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2933842aef8d942a880eeb9535d40de31a86838264cbJohn McCall T = ET->getDecl()->getPromotionType().getTypePtr(); 2934f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2935a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2936a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2937a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2938f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2939f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2940f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2941f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2942f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2943f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2944f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 29457cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 29467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2947f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 29487cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 29497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 29507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 29517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2952f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 29537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 29547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2955f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 29567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 29577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2958f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 29597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 29607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2961f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 29627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 29637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2964f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 29652df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 29662df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 29672df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2968f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2969f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2970f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 297104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \brief Whether this is a promotable bitfield reference according 297204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// to C99 6.3.1.1p2, bullet 2 (and GCC extensions). 297304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// 297404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \returns the type this bit-field will promote to, or NULL if no 297504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// promotion occurs. 297604e8357f6801e9ff52673e7e899a67bbabf9de93Eli FriedmanQualType ASTContext::isPromotableBitField(Expr *E) { 297704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman FieldDecl *Field = E->getBitField(); 297804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (!Field) 297904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 298004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 298104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman QualType FT = Field->getType(); 298204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 298304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman llvm::APSInt BitWidthAP = Field->getBitWidth()->EvaluateAsInt(*this); 298404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t BitWidth = BitWidthAP.getZExtValue(); 298504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 298604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // GCC extension compatibility: if the bit-field size is less than or equal 298704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // to the size of int, it gets promoted no matter what its type is. 298804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // For instance, unsigned long bf : 4 gets promoted to signed int. 298904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth < IntSize) 299004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return IntTy; 299104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 299204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth == IntSize) 299304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return FT->isSignedIntegerType() ? IntTy : UnsignedIntTy; 299404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 299504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // Types bigger than int are not subject to promotions, and therefore act 299604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // like the base type. 299704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // FIXME: This doesn't quite match what gcc does, but what gcc does here 299804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // is ridiculous. 299904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 300004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman} 300104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 3002a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// getPromotedIntegerType - Returns the type that Promotable will 3003a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// promote to: C99 6.3.1.1p2, assuming that Promotable is a promotable 3004a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// integer type. 3005a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType ASTContext::getPromotedIntegerType(QualType Promotable) { 3006a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(!Promotable.isNull()); 3007a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isPromotableIntegerType()); 3008842aef8d942a880eeb9535d40de31a86838264cbJohn McCall if (const EnumType *ET = Promotable->getAs<EnumType>()) 3009842aef8d942a880eeb9535d40de31a86838264cbJohn McCall return ET->getDecl()->getPromotionType(); 3010a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (Promotable->isSignedIntegerType()) 3011a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return IntTy; 3012a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t PromotableSize = getTypeSize(Promotable); 3013a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 3014a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize); 3015a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return (PromotableSize != IntSize) ? IntTy : UnsignedIntTy; 3016a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 3017a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 30181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getIntegerTypeOrder - Returns the highest ranked integer type: 30197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 30201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 30217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 3022f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 3023f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 30247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 30251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3026f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 3027f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 30281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 30307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 30311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 30337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 30347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 30357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 30361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30377cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 30387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 30397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 30407cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 30417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 30421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 30447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 30451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 30467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 30477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 30487cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 30497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 30507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 30517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 30521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 30547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 30551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 30567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 30575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 305871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 305979cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlssonstatic RecordDecl * 306079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders CarlssonCreateRecordDecl(ASTContext &Ctx, RecordDecl::TagKind TK, DeclContext *DC, 306179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson SourceLocation L, IdentifierInfo *Id) { 306279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson if (Ctx.getLangOptions().CPlusPlus) 306379cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson return CXXRecordDecl::Create(Ctx, TK, DC, L, Id); 306479cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson else 306579cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson return RecordDecl::Create(Ctx, TK, DC, L, Id); 306679cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson} 306779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson 30681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// getCFConstantStringType - Return the type used for constant CFStrings. 306971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 307071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 30711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CFConstantStringTypeDecl = 307279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 307379cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("NSConstantString")); 30745cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall CFConstantStringTypeDecl->startDefinition(); 307579cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson 3076f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 30771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 307871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 30790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[0] = getPointerType(IntTy.withConst()); 3080f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 3081f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 308271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 30830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[2] = getPointerType(CharTy.withConst()); 308471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 30851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[3] = LongTy; 30861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 308744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 308844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 30891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 309044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 3091a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 30921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 30934afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 309417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 309544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 309644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 3097838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor CFConstantStringTypeDecl->completeDefinition(); 309871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 30991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 310071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 31018467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 3102b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3103319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 31046217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 3105319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 3106319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 3107319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 3108319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 31091eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getObjCFastEnumerationStateType() { 3110bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 311144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 311279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 311379cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__objcFastEnumerationState")); 31145cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall ObjCFastEnumerationStateTypeDecl->startDefinition(); 31151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3116bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 3117bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 3118de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff getPointerType(ObjCIdTypedefType), 3119bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 3120bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 3121bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 3122bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 31231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 312444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 31251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, 31261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCFastEnumerationStateTypeDecl, 31271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation(), 0, 3128a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 31291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 31304afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 313117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 313244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 31331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3134838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(); 3135bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 31361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3137bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 3138bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 3139bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 3140adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike StumpQualType ASTContext::getBlockDescriptorType() { 3141adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump if (BlockDescriptorType) 3142adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 3143adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3144adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 3145adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Needs the FlagAppleBlock bit. 314679cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 314779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__block_descriptor")); 31485cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 3149adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3150adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 3151adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 3152adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 3153adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3154adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3155adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 3156adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "reserved", 3157083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size" 3158adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3159adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3160adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 2; ++i) { 3161adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldDecl *Field = FieldDecl::Create(*this, 3162adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T, 3163adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump SourceLocation(), 3164adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 3165a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3166adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*BitWidth=*/0, 3167adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*Mutable=*/false); 3168adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 3169adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 3170adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3171838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3172adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3173adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = T; 3174adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3175adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 3176adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3177adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3178adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stumpvoid ASTContext::setBlockDescriptorType(QualType T) { 3179adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const RecordType *Rec = T->getAs<RecordType>(); 3180adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump assert(Rec && "Invalid BlockDescriptorType"); 3181adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = Rec->getDecl(); 3182adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3183adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3184083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike StumpQualType ASTContext::getBlockDescriptorExtendedType() { 3185083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump if (BlockDescriptorExtendedType) 3186083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 3187083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3188083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump RecordDecl *T; 3189083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump // FIXME: Needs the FlagAppleBlock bit. 319079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 319179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__block_descriptor_withcopydispose")); 31925cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 3193083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3194083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump QualType FieldTypes[] = { 3195083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 3196083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 3197083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy), 3198083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy) 3199083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 3200083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3201083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const char *FieldNames[] = { 3202083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "reserved", 3203083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size", 3204083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "CopyFuncPtr", 3205083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "DestroyFuncPtr" 3206083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 3207083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3208083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump for (size_t i = 0; i < 4; ++i) { 3209083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump FieldDecl *Field = FieldDecl::Create(*this, 3210083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T, 3211083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump SourceLocation(), 3212083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump &Idents.get(FieldNames[i]), 3213a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3214083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*BitWidth=*/0, 3215083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*Mutable=*/false); 3216083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T->addDecl(Field); 3217083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump } 3218083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3219838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3220083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3221083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = T; 3222083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3223083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 3224083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 3225083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3226083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stumpvoid ASTContext::setBlockDescriptorExtendedType(QualType T) { 3227083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const RecordType *Rec = T->getAs<RecordType>(); 3228083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump assert(Rec && "Invalid BlockDescriptorType"); 3229083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = Rec->getDecl(); 3230083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 3231083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3232af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stumpbool ASTContext::BlockRequiresCopying(QualType Ty) { 3233af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isBlockPointerType()) 3234af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3235af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (isObjCNSObjectType(Ty)) 3236af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3237af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isObjCObjectPointerType()) 3238af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3239af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return false; 3240af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump} 3241af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3242af7b44d847d3e44c43346d508b2e55a6254b6e9dMike StumpQualType ASTContext::BuildByRefType(const char *DeclName, QualType Ty) { 3243af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // type = struct __Block_byref_1_X { 3244ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // void *__isa; 3245af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // struct __Block_byref_1_X *__forwarding; 3246ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __flags; 3247ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __size; 324838e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__copy_helper; // as needed 324938e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__destroy_help // as needed 3250af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // int X; 3251ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // } * 3252ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3253af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump bool HasCopyAndDispose = BlockRequiresCopying(Ty); 3254af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3255af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // FIXME: Move up 32564d0d85c3370f2726c74ba0ece0a5e712830a1d82Fariborz Jahanian static unsigned int UniqueBlockByRefTypeID = 0; 3257f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 3258f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__Block_byref_" << 3259f5942a44880be26878592eb052b737579349411eBenjamin Kramer ++UniqueBlockByRefTypeID << '_' << DeclName; 3260af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump RecordDecl *T; 326179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 326279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get(Name.str())); 3263af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->startDefinition(); 3264af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType Int32Ty = IntTy; 3265af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump assert(getIntWidth(IntTy) == 32 && "non-32bit int not supported"); 3266af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType FieldTypes[] = { 3267af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3268af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(getTagDeclType(T)), 3269af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 3270af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 3271af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3272af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3273af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Ty 3274af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 3275af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3276af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump const char *FieldNames[] = { 3277af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__isa", 3278af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__forwarding", 3279af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__flags", 3280af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__size", 3281af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__copy_helper", 3282af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__destroy_helper", 3283af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump DeclName, 3284af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 3285af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3286af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump for (size_t i = 0; i < 7; ++i) { 3287af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (!HasCopyAndDispose && i >=4 && i <= 5) 3288af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump continue; 3289af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3290af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump &Idents.get(FieldNames[i]), 3291a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3292af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump /*BitWidth=*/0, /*Mutable=*/false); 3293af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->addDecl(Field); 3294af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump } 3295af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3296838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3297af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3298af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return getPointerType(getTagDeclType(T)); 3299ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump} 3300ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3301ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3302ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike StumpQualType ASTContext::getBlockParmType( 3303083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump bool BlockHasCopyDispose, 3304ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump llvm::SmallVector<const Expr *, 8> &BlockDeclRefDecls) { 3305adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Move up 33064d0d85c3370f2726c74ba0ece0a5e712830a1d82Fariborz Jahanian static unsigned int UniqueBlockParmTypeID = 0; 3307f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 3308f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__block_literal_" 3309f5942a44880be26878592eb052b737579349411eBenjamin Kramer << ++UniqueBlockParmTypeID; 3310adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 331179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson T = CreateRecordDecl(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 331279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get(Name.str())); 33135cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 3314adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 3315adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 3316adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 3317adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 3318adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 3319083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump (BlockHasCopyDispose ? 3320083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorExtendedType()) : 3321083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorType())) 3322adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3323adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3324adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 3325adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__isa", 3326adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__flags", 3327adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__reserved", 3328adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__FuncPtr", 3329adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__descriptor" 3330adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3331adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3332adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 5; ++i) { 3333ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3334adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 3335a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3336ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 3337ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump T->addDecl(Field); 3338ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3339ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3340ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump for (size_t i = 0; i < BlockDeclRefDecls.size(); ++i) { 3341ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const Expr *E = BlockDeclRefDecls[i]; 3342ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(E); 3343ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump clang::IdentifierInfo *Name = 0; 3344ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE) { 3345ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const ValueDecl *D = BDRE->getDecl(); 3346ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump Name = &Idents.get(D->getName()); 3347ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3348ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump QualType FieldType = E->getType(); 3349ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3350ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump if (BDRE && BDRE->isByRef()) 3351af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType = BuildByRefType(BDRE->getDecl()->getNameAsCString(), 3352af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldType); 3353ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3354ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3355a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Name, FieldType, /*TInfo=*/0, 3356ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 3357adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 3358adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 3359adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3360838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3361ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3362ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump return getPointerType(getTagDeclType(T)); 3363adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3364adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3365319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 33666217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 3367319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 3368319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 3369319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 3370319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3371e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 3372e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 33732d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 3374e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 3375bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 3376bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 33771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 337885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 337985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 338085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 3381a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 338233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 3383aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen DyckCharUnits ASTContext::getObjCEncodingTypeSize(QualType type) { 3384199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits sz = getTypeSizeInChars(type); 33851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 338633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 3387199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck if (sz.isPositive() && type->isIntegralType()) 3388199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck sz = std::max(sz, getTypeSizeInChars(IntTy)); 338933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 339033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 3391199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck sz = getTypeSizeInChars(VoidPtrTy); 3392aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck return sz; 3393199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck} 3394199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck 3395199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyckstatic inline 3396199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyckstd::string charUnitsToString(const CharUnits &CU) { 3397199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return llvm::itostr(CU.getQuantity()); 339833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 339933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 34005e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall/// getObjCEncodingForBlockDecl - Return the encoded type for this method 34015e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall/// declaration. 34025e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnallvoid ASTContext::getObjCEncodingForBlock(const BlockExpr *Expr, 34035e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall std::string& S) { 34045e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall const BlockDecl *Decl = Expr->getBlockDecl(); 34055e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType BlockTy = 34065e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall Expr->getType()->getAs<BlockPointerType>()->getPointeeType(); 34075e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Encode result type. 34085e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall getObjCEncodingForType(cast<FunctionType>(BlockTy)->getResultType(), S); 34095e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Compute size of all parameters. 34105e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Start with computing size of a pointer in number of bytes. 34115e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // FIXME: There might(should) be a better way of doing this computation! 34125e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall SourceLocation Loc; 3413199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); 3414199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits ParmOffset = PtrSize; 34155e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 34165e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall E = Decl->param_end(); PI != E; ++PI) { 34175e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType PType = (*PI)->getType(); 3418aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck CharUnits sz = getObjCEncodingTypeSize(PType); 3419199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck assert (sz.isPositive() && "BlockExpr - Incomplete param type"); 34205e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset += sz; 34215e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } 34225e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Size of the argument frame 3423199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 34245e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Block pointer and offset. 34255e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall S += "@?0"; 34265e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset = PtrSize; 34275e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall 34285e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Argument types. 34295e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset = PtrSize; 34305e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall for (BlockDecl::param_const_iterator PI = Decl->param_begin(), E = 34315e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall Decl->param_end(); PI != E; ++PI) { 34325e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmVarDecl *PVDecl = *PI; 34335e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType PType = PVDecl->getOriginalType(); 34345e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall if (const ArrayType *AT = 34355e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 34365e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Use array's original type only if it has known number of 34375e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // elements. 34385e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall if (!isa<ConstantArrayType>(AT)) 34395e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall PType = PVDecl->getType(); 34405e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } else if (PType->isFunctionType()) 34415e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall PType = PVDecl->getType(); 34425e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall getObjCEncodingForType(PType, S); 3443199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 3444aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck ParmOffset += getObjCEncodingTypeSize(PType); 34455e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } 34465e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall} 34475e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall 3448a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 344933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 34501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 3451e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3452c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3453ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 3454a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 345533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 34560d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 345733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 345833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 345933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 346033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 3461199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); 346233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 346333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 3464199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits ParmOffset = 2 * PtrSize; 346589951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 346689951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 346789951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 3468aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck CharUnits sz = getObjCEncodingTypeSize(PType); 3469199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck assert (sz.isPositive() && 3470199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck "getObjCEncodingForMethodDecl - Incomplete param type"); 347133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 347233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 3473199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 347433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 3475199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(PtrSize); 34761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 347733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 347833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 347989951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 348089951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 348189951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 34821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType PType = PVDecl->getOriginalType(); 34834306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 3484ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 3485ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 3486ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 3487bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 3488ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3489ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 3490ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3491ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 349233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 34934306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 34940d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 3495199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 3496aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck ParmOffset += getObjCEncodingTypeSize(PType); 349733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 349833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 349933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 3500c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 350183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 3502c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 3503c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 35041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Property attributes are stored as a comma-delimited C string. The simple 35051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// attributes readonly and bycopy are encoded as single characters. The 35061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parametrized attributes, getter=name, setter=name, and ivar=name, are 35071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// encoded as single characters, followed by an identifier. Property types 35081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// are also encoded as a parametrized attribute. The characters used to encode 350983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 351083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 351183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 351283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 351383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 351483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 351583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 351683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 351783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 351883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 351983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 352083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 352183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 352283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 352383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 352483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 35251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 3526c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 3527e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3528c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 3529c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 3530c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 3531c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3532c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 3533c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 35341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCCategoryImplDecl *CID = 3535c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 3536c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 353717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 3538653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3539c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3540c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3541c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3542c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3543c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3544c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3545c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3546c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3547c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3548c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 354961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 3550c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 355117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 3552653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3553c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3554c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3555c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3556c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3557c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3558c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3559c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3560c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 35611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3562c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3563c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3564c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3565c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3566c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 3567c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3568c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 3569090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 3570090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 35711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 3572090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 3573090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 3574c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3575c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 3576c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 3577c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3578c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 3579c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 3580c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 35811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case ObjCPropertyDecl::Retain: S += ",&"; break; 3582c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3583c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3584c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3585c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 3586c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 3587c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 3588c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 3589c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3590090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 3591090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 35921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3593c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 3594c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 3595077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 3596c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3597c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3598c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 3599c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 3600077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 3601c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3602c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3603c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 3604c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 3605c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 360639f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 3607c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3608c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3609c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 3610c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 3611c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3612a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 36131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Another legacy compatibility encoding: 32-bit longs are encoded as 36141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 'l' or 'L' , but not always. For typedefs, we need to use 3615a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 3616a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 3617a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 36188e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(PointeeTy.getTypePtr())) { 3619183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = PointeeTy->getAs<BuiltinType>()) { 3620c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 3621c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3622a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 36231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else 3624c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 3625c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3626a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 3627a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3628a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3629a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 3630a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 36317d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 3632153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 363382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 363482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 363582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 363682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 36371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(T, S, true, true, Field, 36385b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 363982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 364082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 36411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void EncodeBitField(const ASTContext *Context, std::string& S, 3642153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 36438b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 36448b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 36458b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 36469a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 36478b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 36488b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 36498b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 36508b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 365101eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar// FIXME: Use SmallString for accumulating string. 365282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 365382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 365482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 3655153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 3656090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 36576ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 3658183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = T->getAs<BuiltinType>()) { 3659ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD && FD->isBitField()) 3660ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return EncodeBitField(this, S, FD); 3661ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner char encoding; 3662ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner switch (BT->getKind()) { 36631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: assert(0 && "Unhandled builtin type kind"); 3664ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 3665ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 3666ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_U: 3667ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 3668ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 3669ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 36701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::ULong: 36711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 36721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 367372696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 3674ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 3675ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 3676ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Char_S: 3677ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 3678ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Short: encoding = 's'; break; 3679ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 36801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case BuiltinType::Long: 36811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump encoding = 36821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 3683ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner break; 3684ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 3685ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 3686ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 3687ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 3688ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 368943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 36901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3691ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += encoding; 3692ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3693ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3695183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) { 3696c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 36971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 3698c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 3699ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3700ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 370160bce3ef20a4c9684e3825cdd739fefb9810327dFariborz Jahanian 37026217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const PointerType *PT = T->getAs<PointerType>()) { 37038d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian if (PT->isObjCSelType()) { 37048d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian S += ':'; 37058d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian return; 37068d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian } 370785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 37088d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian 3709a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 3710a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 3711a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 3712a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 37131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Also, do not emit the 'r' for anything but the outermost type! 37148e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(T.getTypePtr())) { 3715a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 3716a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3717a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3718a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 37199fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (OutermostType) { 3720a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 37216217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek while (P->getAs<PointerType>()) 37226217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek P = P->getAs<PointerType>()->getPointeeType(); 3723a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 3724a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3725a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3726a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3727a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3728a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 3729a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 3730a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 3731a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 3732a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 3733a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 3734a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 3735a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 3736a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 3737a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3738a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 37391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 374085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 374185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 374285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 3743e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 374485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 374585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 374685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 37476217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek } else if (const RecordType *RTy = PointeeTy->getAs<RecordType>()) { 37489533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_class *" to "#". 37499533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { 37509533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '#'; 37519533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 37529533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 37539533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_object *" to "@". 37549533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { 37559533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '@'; 37569533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 37579533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 37589533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // fall through... 375985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 376085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 3761a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 3762a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 37631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 376443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 3765ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3766ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3768ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ArrayType *AT = 3769ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Ignore type qualifiers etc. 3770ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 3771559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 3772559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 3773559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 3774559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 37751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3776559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3777559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 3778559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 37791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3780559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 3781559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 3782559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 3783559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 3784559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 3785559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 3786559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 37871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3789559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3790559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 3791559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 3792ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3793ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3795183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (T->getAs<FunctionType>()) { 3796c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 3797ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3798ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38006217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *RTy = T->getAs<RecordType>()) { 380182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 3802d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 3803502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 3804502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 3805502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 3806502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 3807502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 3808502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 38090d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 38107d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 381117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 381217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 381344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 381443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 3815d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 381644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 3817d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 3818d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 38191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3820d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 382143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 38221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 382343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 3824d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 3825a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 3826a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 38271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(qt, S, false, true, 382843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 3829d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 38307d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 38316de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 3832d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 3833ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3834ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 38351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3836ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isEnumeralType()) { 38378b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 38388b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 38398b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 38408b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 3841ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3842ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 38431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3844ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isBlockPointerType()) { 384521a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 3846ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3847ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 38481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (const ObjCInterfaceType *OIT = T->getAs<ObjCInterfaceType>()) { 385043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 38510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ObjCInterfaceDecl *OI = OIT->getDecl(); 385243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 385343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 385443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 385543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 3856f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 385743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 3858f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 385943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 38601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 386143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 386243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 38631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 386443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 386543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 386643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 3867ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 386843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 38691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3870183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = T->getAs<ObjCObjectPointerType>()) { 387114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (OPT->isObjCIdType()) { 387214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '@'; 387314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3874ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 38751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 387627d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->isObjCClassType() || OPT->isObjCQualifiedClassType()) { 387727d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // FIXME: Consider if we need to output qualifiers for 'Class<p>'. 387827d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // Since this is a binary compatibility issue, need to consult with runtime 387927d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // folks. Fortunately, this is a *very* obsure construct. 388014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '#'; 388114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3882ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 38831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3884ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCQualifiedIdType()) { 38851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(getObjCIdType(), S, 388614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandPointedToStructures, 388714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandStructures, FD); 388814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (FD || EncodingProperty) { 388914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Note that we do extended encoding of protocol qualifer list 389014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Only when doing ivar or property encoding. 389114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 389267ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 389367ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 389414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '<'; 389514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += (*I)->getNameAsString(); 389614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '>'; 389714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 389814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 389914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 390014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3901ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 39021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3903ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner QualType PointeeTy = OPT->getPointeeType(); 3904ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (!EncodingProperty && 3905ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner isa<TypedefType>(PointeeTy.getTypePtr())) { 3906ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Another historical/compatibility reason. 39071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We encode the underlying type which comes out as 3908ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // {...}; 3909ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '^'; 39101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, 39111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump false, ExpandPointedToStructures, 3912ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner NULL); 391314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 391414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 3915ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3916ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '@'; 391727d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->getInterfaceDecl() && (FD || EncodingProperty)) { 3918ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 391927d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff S += OPT->getInterfaceDecl()->getIdentifier()->getName(); 392067ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 392167ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 3922ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '<'; 3923ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += (*I)->getNameAsString(); 3924ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '>'; 39251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3926ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 3927ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3928ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3929ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 39301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3931ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner assert(0 && "@encode for type not implemented!"); 393285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 393385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 39341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 3935ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 3936ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 3937ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 3938ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 3939ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 3940ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 3941ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 3942ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 3943ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 3944ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 3945ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 3946ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 3947ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 3948ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 3949ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 3950ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setBuiltinVaListType(QualType T) { 3951b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 39521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3953b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 3954b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 3955b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3956ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCIdType(QualType T) { 3957de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = T; 39587e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 39597e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 3960ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCSelType(QualType T) { 396113dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian ObjCSelTypedefType = T; 3962b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 3963b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3964ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCProtoType(QualType QT) { 3965a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 3966390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 3967390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 3968ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCClassType(QualType T) { 3969de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = T; 39708baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 39718baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3972a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 39731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(ObjCConstantStringType.isNull() && 39742198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 39751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3976a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 39772198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 39782198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 39790bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall/// \brief Retrieve the template name that corresponds to a non-empty 39800bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall/// lookup. 3981eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCallTemplateName ASTContext::getOverloadedTemplateName(UnresolvedSetIterator Begin, 3982eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCall UnresolvedSetIterator End) { 39830bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall unsigned size = End - Begin; 39840bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(size > 1 && "set is not overloaded!"); 39857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 39860bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall void *memory = Allocate(sizeof(OverloadedTemplateStorage) + 39870bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall size * sizeof(FunctionTemplateDecl*)); 39880bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall OverloadedTemplateStorage *OT = new(memory) OverloadedTemplateStorage(size); 39890bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall 39900bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl **Storage = OT->getStorage(); 3991eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCall for (UnresolvedSetIterator I = Begin; I != End; ++I) { 39920bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl *D = *I; 39930bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(isa<FunctionTemplateDecl>(D) || 39940bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall (isa<UsingShadowDecl>(D) && 39950bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))); 39960bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall *Storage++ = D; 39977532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 39987532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 39990bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall return TemplateName(OT); 40007532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 40017532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 4002d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// \brief Retrieve the template name that represents a qualified 4003d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// template name such as \c std::vector. 40041eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 4005d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor bool TemplateKeyword, 40060bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall TemplateDecl *Template) { 4007789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor // FIXME: Canonicalization? 4008d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor llvm::FoldingSetNodeID ID; 4009d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 40101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4011d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor void *InsertPos = 0; 4012d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName *QTN = 40130bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 4014d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor if (!QTN) { 4015d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 4016d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 4017d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor } 40181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4019d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor return TemplateName(QTN); 4020d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor} 4021d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 40227532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 40237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 40241eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 40257532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 40261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((!NNS || NNS->isDependent()) && 40273b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor "Nested name specifier must be dependent"); 40287532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 40297532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 40307532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 40317532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 40327532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 40337532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 40347532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 40357532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 40367532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 40377532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 40387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 40397532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 40407532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 40417532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 40427532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 40437532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 40447532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 4045789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *CheckQTN = 4046789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 4047789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckQTN && "Dependent type name canonicalization broken"); 4048789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckQTN; 40497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 40507532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 40517532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 40527532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 40537532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 40547532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 4055ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Retrieve the template name that represents a dependent 4056ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// template name such as \c MetaFun::template operator+. 4057ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorTemplateName 4058ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 4059ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor OverloadedOperatorKind Operator) { 4060ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor assert((!NNS || NNS->isDependent()) && 4061ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor "Nested name specifier must be dependent"); 4062ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 4063ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor llvm::FoldingSetNodeID ID; 4064ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateName::Profile(ID, NNS, Operator); 4065ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 4066ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor void *InsertPos = 0; 4067789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *QTN 4068789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 4069ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 4070ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (QTN) 4071ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 4072ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 4073ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 4074ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (CanonNNS == NNS) { 4075ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator); 4076ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 4077ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Operator); 4078ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator, Canon); 4079789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 4080789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *CheckQTN 4081789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 4082789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckQTN && "Dependent template name canonicalization broken"); 4083789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckQTN; 4084ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 4085ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 4086ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 4087ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 4088ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor} 4089ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 4090b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 4091d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 4092d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 4093e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallCanQualType ASTContext::getFromTargetType(unsigned Type) const { 4094b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 4095e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall case TargetInfo::NoInt: return CanQualType(); 4096b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 4097b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 4098b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 4099b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 4100b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 4101b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 4102b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 4103b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 4104b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 4105b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 4106b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 4107e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall return CanQualType(); 4108b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 4109b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 4110b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 4111b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 4112b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 4113b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 4114fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 4115fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 4116fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 4117f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff/// FIXME: Move to Type. 4118fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 4119fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 4120fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 4121fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 412240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 4123fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 4124fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 41251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return false; 4126fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 4127fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 41284fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 41294fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 41304fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 41310953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualifiers::GC ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 41320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttrs = Qualifiers::GCNone; 41334fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 41344fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 4135b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 41364fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 41371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // (or pointers to them) be treated as though they were declared 4138a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 41390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GCAttrs == Qualifiers::GCNone) { 414075212ee91313bc1b6dd826d9b173541bc4016539Fariborz Jahanian if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) 41410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttrs = Qualifiers::Strong; 4142a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 41436217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek return getObjCGCAttrKind(Ty->getAs<PointerType>()->getPointeeType()); 4144a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 4145c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 4146c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 4147f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 41480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qualifiers::GCNone; 41494fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 4150b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 41514fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 41524fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 41536ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 41546ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 41556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 4156770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 41571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// areCompatVectorTypes - Return true if the two specified vector types are 41586ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 41596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 41606ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 4161467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified()); 41626ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 416361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 41646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 41656ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 41664084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 41674084c306635b70f37029dca938444e6013f08684Steve Naroff// ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. 41684084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 41694084c306635b70f37029dca938444e6013f08684Steve Naroff 41704084c306635b70f37029dca938444e6013f08684Steve Naroff/// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the 41714084c306635b70f37029dca938444e6013f08684Steve Naroff/// inheritance hierarchy of 'rProto'. 41720fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanianbool ASTContext::ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, 41730fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian ObjCProtocolDecl *rProto) { 41744084c306635b70f37029dca938444e6013f08684Steve Naroff if (lProto == rProto) 417514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return true; 41764084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCProtocolDecl::protocol_iterator PI = rProto->protocol_begin(), 41774084c306635b70f37029dca938444e6013f08684Steve Naroff E = rProto->protocol_end(); PI != E; ++PI) 41784084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 41794084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 41804084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 41814084c306635b70f37029dca938444e6013f08684Steve Naroff} 418214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 41834084c306635b70f37029dca938444e6013f08684Steve Naroff/// QualifiedIdConformsQualifiedId - compare id<p,...> with id<p1,...> 41844084c306635b70f37029dca938444e6013f08684Steve Naroff/// return true if lhs's protocols conform to rhs's protocol; false 41854084c306635b70f37029dca938444e6013f08684Steve Naroff/// otherwise. 41864084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::QualifiedIdConformsQualifiedId(QualType lhs, QualType rhs) { 41874084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isObjCQualifiedIdType() && rhs->isObjCQualifiedIdType()) 41884084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(lhs, rhs, false); 41894084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 41904084c306635b70f37029dca938444e6013f08684Steve Naroff} 41914084c306635b70f37029dca938444e6013f08684Steve Naroff 41924084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an 41934084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIDType. 41944084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::ObjCQualifiedIdTypesAreCompatible(QualType lhs, QualType rhs, 41954084c306635b70f37029dca938444e6013f08684Steve Naroff bool compare) { 41964084c306635b70f37029dca938444e6013f08684Steve Naroff // Allow id<P..> and an 'id' or void* type in all cases. 41971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isVoidPointerType() || 41984084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->isObjCIdType() || lhs->isObjCClassType()) 41994084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 42001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else if (rhs->isVoidPointerType() || 42014084c306635b70f37029dca938444e6013f08684Steve Naroff rhs->isObjCIdType() || rhs->isObjCClassType()) 42024084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 42034084c306635b70f37029dca938444e6013f08684Steve Naroff 42044084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsQID = lhs->getAsObjCQualifiedIdType()) { 4205183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *rhsOPT = rhs->getAs<ObjCObjectPointerType>(); 42061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42074084c306635b70f37029dca938444e6013f08684Steve Naroff if (!rhsOPT) return false; 42081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42094084c306635b70f37029dca938444e6013f08684Steve Naroff if (rhsOPT->qual_empty()) { 42101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a unqualified interface pointer "NSString*", 42114084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 42124084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 42134084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 42144084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 42154084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 42164084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 42174084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 42180fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (!rhsID->ClassImplementsProtocol(*I, true)) 42194084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 42204084c306635b70f37029dca938444e6013f08684Steve Naroff } 42214084c306635b70f37029dca938444e6013f08684Steve Naroff } 42224084c306635b70f37029dca938444e6013f08684Steve Naroff // If there are no qualifiers and no interface, we have an 'id'. 42234084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 42244084c306635b70f37029dca938444e6013f08684Steve Naroff } 42251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 42264084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 42274084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 42284084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 42294084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 4230de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 4231de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // when comparing an id<P> on lhs with a static type on rhs, 4232de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // see if static class implements all of id's protocols, directly or 4233de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // through its super class and categories. 42344084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsOPT->qual_begin(), 42354084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsOPT->qual_end(); J != E; ++J) { 42364084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 42374084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 42384084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 42394084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 42408f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 42418f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 4242de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 42431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a qualified interface pointer "NSString<P>*", 42444084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 42454084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 42464084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 42474084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 42484084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 42494084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 42504084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 42510fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (rhsID->ClassImplementsProtocol(*I, true)) { 42524084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 42534084c306635b70f37029dca938444e6013f08684Steve Naroff break; 42544084c306635b70f37029dca938444e6013f08684Steve Naroff } 42554084c306635b70f37029dca938444e6013f08684Steve Naroff } 42564084c306635b70f37029dca938444e6013f08684Steve Naroff } 42574084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 4258de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return false; 4259de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 42601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4261de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return true; 4262de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 42631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42644084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsQID = rhs->getAsObjCQualifiedIdType(); 42654084c306635b70f37029dca938444e6013f08684Steve Naroff assert(rhsQID && "One of the LHS/RHS should be id<x>"); 42664084c306635b70f37029dca938444e6013f08684Steve Naroff 42671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCObjectPointerType *lhsOPT = 42684084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->getAsObjCInterfacePointerType()) { 42694084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhsOPT->qual_empty()) { 42704084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 42714084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *lhsID = lhsOPT->getInterfaceDecl()) { 42724084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = rhsQID->qual_begin(), 42734084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); I != E; ++I) { 42744084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 42754084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 42764084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 42770fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (lhsID->ClassImplementsProtocol(*I, true)) { 42784084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 42794084c306635b70f37029dca938444e6013f08684Steve Naroff break; 42804084c306635b70f37029dca938444e6013f08684Steve Naroff } 42814084c306635b70f37029dca938444e6013f08684Steve Naroff } 42824084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 42834084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 42844084c306635b70f37029dca938444e6013f08684Steve Naroff } 42854084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 42864084c306635b70f37029dca938444e6013f08684Steve Naroff } 42871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 42884084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsOPT->qual_begin(), 42894084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsOPT->qual_end(); I != E; ++I) { 42904084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 42914084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 42924084c306635b70f37029dca938444e6013f08684Steve Naroff 42934084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 42944084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 42954084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 42964084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsQID->qual_begin(), 42974084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); J != E; ++J) { 42984084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 42994084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 43004084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 43014084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 43024084c306635b70f37029dca938444e6013f08684Steve Naroff break; 43034084c306635b70f37029dca938444e6013f08684Steve Naroff } 43044084c306635b70f37029dca938444e6013f08684Steve Naroff } 43054084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 43064084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 43074084c306635b70f37029dca938444e6013f08684Steve Naroff } 43084084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 43094084c306635b70f37029dca938444e6013f08684Steve Naroff } 43104084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 43114084c306635b70f37029dca938444e6013f08684Steve Naroff} 43124084c306635b70f37029dca938444e6013f08684Steve Naroff 43134084c306635b70f37029dca938444e6013f08684Steve Naroff/// canAssignObjCInterfaces - Return true if the two interface types are 43144084c306635b70f37029dca938444e6013f08684Steve Naroff/// compatible for assignment from RHS to LHS. This handles validation of any 43154084c306635b70f37029dca938444e6013f08684Steve Naroff/// protocol qualifiers on the LHS or RHS. 43164084c306635b70f37029dca938444e6013f08684Steve Naroff/// 43174084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 43184084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *RHSOPT) { 43194084c306635b70f37029dca938444e6013f08684Steve Naroff // If either type represents the built-in 'id' or 'Class' types, return true. 43204084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCBuiltinType() || RHSOPT->isObjCBuiltinType()) 43214084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 43224084c306635b70f37029dca938444e6013f08684Steve Naroff 43234084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 43241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 43251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType(RHSOPT,0), 43264084c306635b70f37029dca938444e6013f08684Steve Naroff false); 43274084c306635b70f37029dca938444e6013f08684Steve Naroff 43284084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 43294084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 43304084c306635b70f37029dca938444e6013f08684Steve Naroff if (LHS && RHS) // We have 2 user-defined types. 43314084c306635b70f37029dca938444e6013f08684Steve Naroff return canAssignObjCInterfaces(LHS, RHS); 43321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43334084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 433414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 433514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4336e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// getIntersectionOfProtocols - This routine finds the intersection of set 4337e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// of protocols inherited from two distinct objective-c pointer objects. 4338e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// It is used to build composite qualifier list of the composite type of 4339e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// the conditional expression involving two objective-c pointer objects. 4340e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianstatic 4341e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid getIntersectionOfProtocols(ASTContext &Context, 4342e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4343e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *RHSOPT, 4344e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVectorImpl<ObjCProtocolDecl *> &IntersectionOfProtocols) { 4345e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4346e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4347e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4348e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4349e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> InheritedProtocolSet; 4350e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned LHSNumProtocols = LHS->getNumProtocols(); 4351e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (LHSNumProtocols > 0) 4352e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHS->qual_begin(), LHS->qual_end()); 4353e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 4354432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> LHSInheritedProtocols; 4355432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Context.CollectInheritedProtocols(LHS->getDecl(), LHSInheritedProtocols); 4356e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHSInheritedProtocols.begin(), 4357e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSInheritedProtocols.end()); 4358e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4359e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4360e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned RHSNumProtocols = RHS->getNumProtocols(); 4361e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (RHSNumProtocols > 0) { 4362e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl **RHSProtocols = (ObjCProtocolDecl **)RHS->qual_begin(); 4363e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (unsigned i = 0; i < RHSNumProtocols; ++i) 4364e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (InheritedProtocolSet.count(RHSProtocols[i])) 4365e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.push_back(RHSProtocols[i]); 4366e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4367e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 4368432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> RHSInheritedProtocols; 4369e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian Context.CollectInheritedProtocols(RHS->getDecl(), RHSInheritedProtocols); 4370432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian for (llvm::SmallPtrSet<ObjCProtocolDecl*,8>::iterator I = 4371432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian RHSInheritedProtocols.begin(), 4372432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian E = RHSInheritedProtocols.end(); I != E; ++I) 4373432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian if (InheritedProtocolSet.count((*I))) 4374432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian IntersectionOfProtocols.push_back((*I)); 4375e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4376e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 4377e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4378db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// areCommonBaseCompatible - Returns common base class of the two classes if 4379db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// one found. Note that this is O'2 algorithm. But it will be called as the 4380db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// last type comparison in a ?-exp of ObjC pointer types before a 4381db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// warning is issued. So, its invokation is extremely rare. 4382db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz JahanianQualType ASTContext::areCommonBaseCompatible( 4383db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4384db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCObjectPointerType *RHSOPT) { 4385db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4386db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4387db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian if (!LHS || !RHS) 4388db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4389db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4390db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian while (const ObjCInterfaceDecl *LHSIDecl = LHS->getDecl()->getSuperClass()) { 4391db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian QualType LHSTy = getObjCInterfaceType(LHSIDecl); 4392db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian LHS = LHSTy->getAs<ObjCInterfaceType>(); 4393e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (canAssignObjCInterfaces(LHS, RHS)) { 4394e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVector<ObjCProtocolDecl *, 8> IntersectionOfProtocols; 4395e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian getIntersectionOfProtocols(*this, 4396e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSOPT, RHSOPT, IntersectionOfProtocols); 4397e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (IntersectionOfProtocols.empty()) 4398e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSTy = getObjCObjectPointerType(LHSTy); 4399e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else 4400e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSTy = getObjCObjectPointerType(LHSTy, &IntersectionOfProtocols[0], 4401e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.size()); 4402e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian return LHSTy; 4403e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4404db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian } 4405db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4406db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4407db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian} 4408db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 44093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 44103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 44116ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 44126ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 44136ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 44146ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 44151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44166ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 44176ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 4418c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (LHS->getNumProtocols() == 0) 44196ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 44201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44216ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 44226ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 4423c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (RHS->getNumProtocols() == 0) 44246ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 44251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4426c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator LHSPI = LHS->qual_begin(), 4427c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff LHSPE = LHS->qual_end(); 442891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 442991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 443091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 443191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 443291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 4433c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff for (ObjCInterfaceType::qual_iterator RHSPI = RHS->qual_begin(), 44344084c306635b70f37029dca938444e6013f08684Steve Naroff RHSPE = RHS->qual_end(); 44358f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff RHSPI != RHSPE; RHSPI++) { 44368f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 443791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 44388f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 44398f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 444091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 444191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 444291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 444391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 444491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 444591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 444691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 44476ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 44486ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 4449389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 4450389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 4451183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *LHSOPT = LHS->getAs<ObjCObjectPointerType>(); 4452183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *RHSOPT = RHS->getAs<ObjCObjectPointerType>(); 44531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 445414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (!LHSOPT || !RHSOPT) 4455389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 445614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 445714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 445814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff canAssignObjCInterfaces(RHSOPT, LHSOPT); 4459389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 4460389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 44611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 4462ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 44631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C99 6.2.7p1: Two types have compatible types if their types are the 4464ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 44653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 44660e709abafbd939326850501f795cc7a92c88a354Douglas Gregor if (getLangOptions().CPlusPlus) 44670e709abafbd939326850501f795cc7a92c88a354Douglas Gregor return hasSameType(LHS, RHS); 44680e709abafbd939326850501f795cc7a92c88a354Douglas Gregor 44693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 44703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 44713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44723d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 4473183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *lbase = lhs->getAs<FunctionType>(); 4474183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *rbase = rhs->getAs<FunctionType>(); 447572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 447672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 44773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 44783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 44793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 44803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 44816de8b62ae42818c0bd8878b0d1900e17c7c43e0eFariborz Jahanian QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 44823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 44836de8b62ae42818c0bd8878b0d1900e17c7c43e0eFariborz Jahanian if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 448461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 44856de8b62ae42818c0bd8878b0d1900e17c7c43e0eFariborz Jahanian if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 448661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 44876dcbc294f9b2c45680dd3227e885712c2814ec0eMike Stump // FIXME: double check this 44882455636163fdd18581d7fdae816433f886d88213Mike Stump bool NoReturn = lbase->getNoReturnAttr() || rbase->getNoReturnAttr(); 44892455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != lbase->getNoReturnAttr()) 44902455636163fdd18581d7fdae816433f886d88213Mike Stump allLTypes = false; 44912455636163fdd18581d7fdae816433f886d88213Mike Stump if (NoReturn != rbase->getNoReturnAttr()) 44922455636163fdd18581d7fdae816433f886d88213Mike Stump allRTypes = false; 4493ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv lcc = lbase->getCallConv(); 4494ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor CallingConv rcc = rbase->getCallConv(); 4495ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor // Compatible functions must have compatible calling conventions 449604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!isSameCallConv(lcc, rcc)) 4497ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return QualType(); 44981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 4500465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 4501465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 45023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 45033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 45043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 45063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 45073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 45083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 45103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 45113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 45123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45137fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 45147fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 45157fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 45163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 45173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 45183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 45193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 45203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 45213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 45223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 45233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 452461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 452561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 452661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 452761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 45283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 45293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 45303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 45313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 45322455636163fdd18581d7fdae816433f886d88213Mike Stump lproto->isVariadic(), lproto->getTypeQuals(), 45331bf40248e3f0d743df77b5b44dbff72c235cbf20Douglas Gregor false, false, 0, 0, NoReturn, lcc); 45343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 45353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 45373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 45383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 453972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 45403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 4541465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 45423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 45433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 45443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 45453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 45463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 45473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 45483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 45493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 45503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 4551b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor 4552b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor // Look at the promotion type of enum types, since that is the type used 4553b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor // to pass enum values. 4554b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor if (const EnumType *Enum = argTy->getAs<EnumType>()) 4555b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor argTy = Enum->getDecl()->getPromotionType(); 4556b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor 45573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 45583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 45593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 45603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 45613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 45633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 45643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 45652d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getNumArgs(), proto->isVariadic(), 4566ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor proto->getTypeQuals(), 4567ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor false, false, 0, 0, NoReturn, lcc); 45683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 45693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 45713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 4572ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return getFunctionNoProtoType(retType, NoReturn, lcc); 45733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 45743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45753d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 457643d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 457743d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 457843d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 45797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 45807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 45810e709abafbd939326850501f795cc7a92c88a354Douglas Gregor assert(!LHS->getAs<ReferenceType>() && "LHS is a reference type?"); 45820e709abafbd939326850501f795cc7a92c88a354Douglas Gregor assert(!RHS->getAs<ReferenceType>() && "RHS is a reference type?"); 45830e709abafbd939326850501f795cc7a92c88a354Douglas Gregor 45843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 45853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 45863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4587f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 45883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 45893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 45903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the qualifiers are different, the types aren't compatible... mostly. 4592a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor Qualifiers LQuals = LHSCan.getLocalQualifiers(); 4593a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor Qualifiers RQuals = RHSCan.getLocalQualifiers(); 45940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals != RQuals) { 45950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If any of these qualifiers are different, we have a type 45960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // mismatch. 45970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || 45980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall LQuals.getAddressSpace() != RQuals.getAddressSpace()) 45990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 46000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 46010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Exactly one GC qualifier difference is allowed: __strong is 46020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // okay if the other type has no GC qualifier but is an Objective 46030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // C object pointer (i.e. implicitly strong by default). We fix 46040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // this by pretending that the unqualified type was actually 46050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // qualified __strong. 46060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); 46070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); 46080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements"); 46090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 46100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) 46110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 46120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 46130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Strong && RHSCan->isObjCObjectPointerType()) { 46140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(LHS, getObjCGCQualType(RHS, Qualifiers::Strong)); 46150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 46160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_R == Qualifiers::Strong && LHSCan->isObjCObjectPointerType()) { 46170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(getObjCGCQualType(LHS, Qualifiers::Strong), RHS); 46180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 46193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 46200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 46210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 46220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Okay, qualifiers are equal. 46233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4624852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 4625852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 4626f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 46271adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 46281adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 46291adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 46301adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 46314c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 46324c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 4633a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 4634a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 4635a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 4636a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 46371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4638213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 4639213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 4640213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 46411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 46424e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 46434e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 46441adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 46451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // a signed integer type, or an unsigned integer type. 4646842aef8d942a880eeb9535d40de31a86838264cbJohn McCall // Compatibility is based on the underlying type, not the promotion 4647842aef8d942a880eeb9535d40de31a86838264cbJohn McCall // type. 4648183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = LHS->getAs<EnumType>()) { 46493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 46503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 4651bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 4652183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = RHS->getAs<EnumType>()) { 46533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 46543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 4655bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 46561adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 46573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 4658ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 46593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 46604a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 46611adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 466272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 466372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 4664ad5e73887052193afda72db8efcb812bd083a4a8John McCall#define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base) case Type::Class: 466572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 466672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 466772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 466872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 466972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 467072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 46717c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 46727c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 467372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 467472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 467572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 467672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 467772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 467872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 467972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 468072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 468172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 468272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 468372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 46841adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 46853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 46863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 46876217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<PointerType>()->getPointeeType(); 46886217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<PointerType>()->getPointeeType(); 46893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 46903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 469107d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 469261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 469307d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 469461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 46953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 46963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 4697c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 4698c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 4699c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 47006217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<BlockPointerType>()->getPointeeType(); 47016217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<BlockPointerType>()->getPointeeType(); 4702c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 4703c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 4704c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 4705c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 4706c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 4707c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 4708c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 4709c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 47101adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 47113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 47123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 47133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 47143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 47153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 47163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 47173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 47183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 47193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 47203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 472161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 472261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 472361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 472461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 47253bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 47263bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 47273bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 47283bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 47293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 47303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 473161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 473261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 473361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 473461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 47353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 47363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 47373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 47383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 47393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 47403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 47413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 47423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 47433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 47443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 47453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 47463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 47473bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 47483bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 47497e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 47507e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 47513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 47521adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 47533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 475472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 475572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 47563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 47571adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 47583cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 47593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 476064cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 476164cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 476264cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 47633cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 47645a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 4765183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (areCompatVectorTypes(LHS->getAs<VectorType>(), RHS->getAs<VectorType>())) 47663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 476761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 476861490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 47695fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 47705a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 47715a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 4772183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* LHSIface = LHS->getAs<ObjCInterfaceType>(); 4773183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType* RHSIface = RHS->getAs<ObjCInterfaceType>(); 47745fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 47755fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 47765fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 47775fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 47783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 477961490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 478014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff case Type::ObjCObjectPointer: { 4781183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (canAssignObjCInterfaces(LHS->getAs<ObjCObjectPointerType>(), 4782183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall RHS->getAs<ObjCObjectPointerType>())) 478314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return LHS; 478414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4785bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 478614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 4787ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 478872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 478972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 4790ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 47917192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 47925426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 4793ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 4794ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 479588054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 4796ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 4797632d772a78db7e2cd9b36f8a22aee49d44486fbfSebastian Redl if (T->isBooleanType()) 4798ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 4799842aef8d942a880eeb9535d40de31a86838264cbJohn McCall if (EnumType *ET = dyn_cast<EnumType>(T)) 480029a7f3342c3c6dd15d914c61ae22246c36d51ce7Eli Friedman T = ET->getDecl()->getIntegerType(); 4801f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 4802ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 4803ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4804ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 4805ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 4806ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 48076a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 48086a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // Turn <4 x signed int> -> <4 x unsigned int> 48096a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const VectorType *VTy = T->getAs<VectorType>()) 48106a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner return getVectorType(getCorrespondingUnsignedType(VTy->getElementType()), 481182287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson VTy->getNumElements(), VTy->isAltiVec(), VTy->isPixel()); 48126a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 48136a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // For enums, we return the unsigned version of the base type. 48146a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const EnumType *ETy = T->getAs<EnumType>()) 4815ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 48166a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 48176a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner const BuiltinType *BTy = T->getAs<BuiltinType>(); 48186a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner assert(BTy && "Unexpected signed integer type"); 4819ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 4820ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 4821ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 4822ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 4823ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 4824ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 4825ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 4826ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 4827ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 4828ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 4829ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 4830ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 48312df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 48322df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 4833ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 4834ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 4835ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 4836ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 4837ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4838ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 48392cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 48402cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 48412cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 484286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 484386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 484486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 484586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 484686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 484786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 484886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 484986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 48501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 485186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 485286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 485386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 485486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 485586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 48561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 485786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 485886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 485986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 486086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 48611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: Done = true; --Str; break; 486286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 486386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 486486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 486586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 486686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 486786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 486886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 486986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 487086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 487186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 487286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 487386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 487486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 487586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 487686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 487786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 487886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 487986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 48801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 488186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 488286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 488386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 488486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 488586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 488686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 488786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 488886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 488986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 489086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 489186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 489286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 489386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 489486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 489586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 489686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 489786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 489886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 489986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 490086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 490186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 490286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 490386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 490486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 490586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 490686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 490786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 490886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 490986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 491086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 491186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 491286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 491386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 491486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 491586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 491686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 491786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 491886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 491986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 492086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 492186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 492286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 492386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 492486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 492586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 492686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 492786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 492886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 492986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 493086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 493186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 493286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 493386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 493486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 493586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 493686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 493786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 493886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 493986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 494086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 494186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 494286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 494386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 494486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 494586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 494686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 494786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 494886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 494986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 495086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 495186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 495286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 495386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 495486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 495586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 495686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 495786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 495886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 495986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 496086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 496186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 496286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 496386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 49641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 496586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 49661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 496786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 496882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson // FIXME: Don't know what to do about AltiVec. 496982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Type = Context.getVectorType(ElementType, NumElements, false, false); 497086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 497186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4972d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor case 'X': { 4973d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 4974d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor Type = Context.getComplexType(ElementType); 4975d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor break; 4976d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor } 49779a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'P': 4978c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor Type = Context.getFILEType(); 4979c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor if (Type.isNull()) { 4980f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_stdio; 498186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 498286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 4983fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 49849a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'J': 4985f711c41dd9412a8182793259d355c4f6979ed5edMike Stump if (Signed) 4986782fa308a765aeac2acb39c4e697c937ec21185bMike Stump Type = Context.getsigjmp_bufType(); 4987f711c41dd9412a8182793259d355c4f6979ed5edMike Stump else 4988f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Type = Context.getjmp_bufType(); 4989f711c41dd9412a8182793259d355c4f6979ed5edMike Stump 4990fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump if (Type.isNull()) { 4991f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_setjmp; 4992fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump return QualType(); 4993fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump } 4994fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 4995782fa308a765aeac2acb39c4e697c937ec21185bMike Stump } 49961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 499786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 499886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 49991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 500086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 500186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 500286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 500386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 500486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 500586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getPointerType(Type); 500686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 500786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 500886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 500986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 501086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 501186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 50120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Type = Type.withConst(); 501386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 5014013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian case 'D': 5015013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian Type = Context.getVolatileType(Type); 5016013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian break; 501786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 501886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 50191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 502086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 502186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 502286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 502386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 502486df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 502586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 502686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 50271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 502886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 50291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 503086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 503186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 503286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 503386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 503486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 503586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 503686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 503786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 503886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 503986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 504086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 504186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 50421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 504386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 504486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 504586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 504686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 504786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 504886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 504986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 505086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 505186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 5052ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor 5053ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor // FIXME: Should we create noreturn types? 505486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 5055ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor TypeStr[0] == '.', 0, false, false, 0, 0, 5056ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor false, CC_Default); 505786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 5058a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 5059a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType 5060a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanASTContext::UsualArithmeticConversionsType(QualType lhs, QualType rhs) { 5061a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Perform the usual unary conversions. We do this early so that 5062a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // integral promotions to "int" can allow us to exit early, in the 5063a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // lhs == rhs check. Also, for conversion purposes, we ignore any 5064a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // qualifiers. For example, "const float" and "float" are 5065a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // equivalent. 5066a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isPromotableIntegerType()) 5067a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getPromotedIntegerType(lhs); 5068a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 5069a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = lhs.getUnqualifiedType(); 5070a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isPromotableIntegerType()) 5071a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getPromotedIntegerType(rhs); 5072a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 5073a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = rhs.getUnqualifiedType(); 5074a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 5075a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If both types are identical, no conversion is needed. 5076a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs == rhs) 5077a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 50781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5079a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If either side is a non-arithmetic type (e.g. a pointer), we are done. 5080a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The caller can deal with this (e.g. pointer + int). 5081a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (!lhs->isArithmeticType() || !rhs->isArithmeticType()) 5082a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 50831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 50841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // At this point, we have two different arithmetic types. 50851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5086a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle complex types first (C99 6.3.1.8p1). 5087a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexType() || rhs->isComplexType()) { 5088a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the complex type. 50891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (rhs->isIntegerType() || rhs->isComplexIntegerType()) { 5090a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 5091a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5092a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 50931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isIntegerType() || lhs->isComplexIntegerType()) { 5094a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 5095a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5096a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5097a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // This handles complex/complex, complex/float, or float/complex. 50981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // When both operands are complex, the shorter operand is converted to the 50991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type of the longer, and that is the type of the result. This corresponds 51001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // to what is done when combining two real floating-point operands. 51011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The fun begins when size promotion occur across type domains. 5102a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // From H&S 6.3.4: When one operand is complex and the other is a real 51031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // floating-point type, the less precise type is converted, within it's 5104a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // real or complex domain, to the precision of the other type. For example, 51051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // when combining a "long double" with a "double _Complex", the 5106a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // "double _Complex" is promoted to "long double _Complex". 5107a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 51081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 51091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (result > 0) { // The left side is bigger, convert rhs. 5110a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getFloatingTypeOfSizeWithinDomain(lhs, rhs); 51111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (result < 0) { // The right side is bigger, convert lhs. 5112a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getFloatingTypeOfSizeWithinDomain(rhs, lhs); 51131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 5114a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // At this point, lhs and rhs have the same rank/size. Now, make sure the 5115a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // domains match. This is a requirement for our implementation, C99 5116a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // does not require this promotion. 5117a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs != rhs) { // Domains don't match, we have complex/float mix. 5118a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType()) { // handle "double, _Complex double". 5119a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5120a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { // handle "_Complex double, double". 5121a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5122a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5123a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5124a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // The domain/size match exactly. 5125a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5126a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Now handle "real" floating types (i.e. float, double, long double). 5127a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType() || rhs->isRealFloatingType()) { 5128a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the real floating type. 5129a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isIntegerType()) { 5130a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the lhs floating point type. 5131a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5132a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5133a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isComplexIntegerType()) { 5134a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the complex floating point type. 5135a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(lhs); 5136a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5137a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isIntegerType()) { 5138a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the rhs floating point type. 5139a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5140a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 51411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isComplexIntegerType()) { 5142a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the complex floating point type. 5143a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(rhs); 5144a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5145a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // We have two real floating types, float/complex combos were handled above. 5146a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Convert the smaller operand to the bigger result. 5147a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 5148a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (result > 0) // convert the rhs 5149a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5150a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(result < 0 && "illegal float comparison"); 5151a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; // convert the lhs 5152a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5153a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexIntegerType() || rhs->isComplexIntegerType()) { 5154a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle GCC complex int extension. 5155a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *lhsComplexInt = lhs->getAsComplexIntegerType(); 5156a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *rhsComplexInt = rhs->getAsComplexIntegerType(); 5157a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 5158a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsComplexInt && rhsComplexInt) { 51591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (getIntegerTypeOrder(lhsComplexInt->getElementType(), 5160a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsComplexInt->getElementType()) >= 0) 5161a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // convert the rhs 5162a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5163a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (lhsComplexInt && rhs->isIntegerType()) { 5164a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 5165a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5166a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (rhsComplexInt && lhs->isIntegerType()) { 5167a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 5168a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5169a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5170a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5171a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Finally, we have two differing integer types. 5172a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The rules for this case are in C99 6.3.1.8 5173a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int compare = getIntegerTypeOrder(lhs, rhs); 5174a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman bool lhsSigned = lhs->isSignedIntegerType(), 5175a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsSigned = rhs->isSignedIntegerType(); 5176a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman QualType destType; 5177a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsSigned == rhsSigned) { 5178a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Same signedness; use the higher-ranked type 5179a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = compare >= 0 ? lhs : rhs; 5180a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (compare != (lhsSigned ? 1 : -1)) { 5181a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The unsigned type has greater than or equal rank to the 5182a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // signed type, so use the unsigned type 5183a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? rhs : lhs; 5184a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (getIntWidth(lhs) != getIntWidth(rhs)) { 5185a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The two types are different widths; if we are here, that 5186a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // means the signed type is larger than the unsigned type, so 5187a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // use the signed type. 5188a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? lhs : rhs; 5189a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { 5190a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The signed type is higher-ranked than the unsigned type, 5191a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // but isn't actually any bigger (like unsigned int and long 5192a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // on most 32-bit systems). Use the unsigned type corresponding 5193a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // to the signed type. 5194a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = getCorrespondingUnsignedType(lhsSigned ? lhs : rhs); 5195a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5196a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return destType; 5197a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 5198