ASTContext.cpp revision 9763e221e16026ddf487d2564ed349d2c874a1a1
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" 21ea1471e0e967548c596a71469702f8846dbaf3c0John McCall#include "clang/AST/ExprCXX.h" 222cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor#include "clang/AST/ExternalASTSource.h" 2319cc4abea06a9b49e0e16a50d335c064cd723572Anders Carlsson#include "clang/AST/RecordLayout.h" 241b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner#include "clang/Basic/Builtins.h" 25a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner#include "clang/Basic/SourceManager.h" 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 27f5942a44880be26878592eb052b737579349411eBenjamin Kramer#include "llvm/ADT/SmallString.h" 2885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 296fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.h" 30f5942a44880be26878592eb052b737579349411eBenjamin Kramer#include "llvm/Support/raw_ostream.h" 3129445a0542d128cd7ee587ee52229670b9b54a12Anders Carlsson 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 383e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregorvoid 393e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas GregorASTContext::CanonicalTemplateTemplateParm::Profile(llvm::FoldingSetNodeID &ID, 403e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor TemplateTemplateParmDecl *Parm) { 413e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor ID.AddInteger(Parm->getDepth()); 423e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor ID.AddInteger(Parm->getPosition()); 433e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor // FIXME: Parameter pack 443e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor 453e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor TemplateParameterList *Params = Parm->getTemplateParameters(); 463e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor ID.AddInteger(Params->size()); 473e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor for (TemplateParameterList::const_iterator P = Params->begin(), 483e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor PEnd = Params->end(); 493e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor P != PEnd; ++P) { 503e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor if (TemplateTypeParmDecl *TTP = dyn_cast<TemplateTypeParmDecl>(*P)) { 513e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor ID.AddInteger(0); 523e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor ID.AddBoolean(TTP->isParameterPack()); 533e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor continue; 543e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor } 553e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor 563e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor if (NonTypeTemplateParmDecl *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*P)) { 573e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor ID.AddInteger(1); 583e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor // FIXME: Parameter pack 593e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor ID.AddPointer(NTTP->getType().getAsOpaquePtr()); 603e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor continue; 613e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor } 623e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor 633e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor TemplateTemplateParmDecl *TTP = cast<TemplateTemplateParmDecl>(*P); 643e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor ID.AddInteger(2); 653e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor Profile(ID, TTP); 663e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor } 673e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor} 683e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor 693e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas GregorTemplateTemplateParmDecl * 703e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas GregorASTContext::getCanonicalTemplateTemplateParmDecl( 713e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor TemplateTemplateParmDecl *TTP) { 723e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor // Check if we already have a canonical template template parameter. 733e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor llvm::FoldingSetNodeID ID; 743e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor CanonicalTemplateTemplateParm::Profile(ID, TTP); 753e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor void *InsertPos = 0; 763e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor CanonicalTemplateTemplateParm *Canonical 773e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor = CanonTemplateTemplateParms.FindNodeOrInsertPos(ID, InsertPos); 783e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor if (Canonical) 793e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor return Canonical->getParam(); 803e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor 813e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor // Build a canonical template parameter list. 823e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor TemplateParameterList *Params = TTP->getTemplateParameters(); 833e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor llvm::SmallVector<NamedDecl *, 4> CanonParams; 843e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor CanonParams.reserve(Params->size()); 853e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor for (TemplateParameterList::const_iterator P = Params->begin(), 863e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor PEnd = Params->end(); 873e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor P != PEnd; ++P) { 883e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor if (TemplateTypeParmDecl *TTP = dyn_cast<TemplateTypeParmDecl>(*P)) 893e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor CanonParams.push_back( 903e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor TemplateTypeParmDecl::Create(*this, getTranslationUnitDecl(), 913e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor SourceLocation(), TTP->getDepth(), 923e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor TTP->getIndex(), 0, false, 933e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor TTP->isParameterPack())); 943e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor else if (NonTypeTemplateParmDecl *NTTP 953e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor = dyn_cast<NonTypeTemplateParmDecl>(*P)) 963e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor CanonParams.push_back( 973e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor NonTypeTemplateParmDecl::Create(*this, getTranslationUnitDecl(), 983e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor SourceLocation(), NTTP->getDepth(), 993e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor NTTP->getPosition(), 0, 1003e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor getCanonicalType(NTTP->getType()), 1013e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor 0)); 1023e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor else 1033e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor CanonParams.push_back(getCanonicalTemplateTemplateParmDecl( 1043e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor cast<TemplateTemplateParmDecl>(*P))); 1053e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor } 1063e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor 1073e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor TemplateTemplateParmDecl *CanonTTP 1083e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor = TemplateTemplateParmDecl::Create(*this, getTranslationUnitDecl(), 1093e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor SourceLocation(), TTP->getDepth(), 1103e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor TTP->getPosition(), 0, 1113e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor TemplateParameterList::Create(*this, SourceLocation(), 1123e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor SourceLocation(), 1133e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor CanonParams.data(), 1143e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor CanonParams.size(), 1153e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor SourceLocation())); 1163e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor 1173e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor // Get the new insert position for the node we care about. 1183e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor Canonical = CanonTemplateTemplateParms.FindNodeOrInsertPos(ID, InsertPos); 1193e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor assert(Canonical == 0 && "Shouldn't be in the map!"); 1203e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor (void)Canonical; 1213e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor 1223e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor // Create the canonical template template parameter entry. 1233e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor Canonical = new (*this) CanonicalTemplateTemplateParm(CanonTTP); 1243e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor CanonTemplateTemplateParms.InsertNode(Canonical, InsertPos); 1253e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor return CanonTTP; 1263e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor} 1273e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor 12861710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 129444be7366d0a1e172c0290a1ea54c1cb16b5947cDaniel Dunbar const TargetInfo &t, 130e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 1311b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner Builtin::Context &builtins, 1321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool FreeMem, unsigned size_reserve) : 133ef99001908e799c388f1363b1e607dad5f5b57d3John McCall TemplateSpecializationTypes(this_()), 134ef99001908e799c388f1363b1e607dad5f5b57d3John McCall DependentTemplateSpecializationTypes(this_()), 1351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 1362bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian NSConstantStringTypeDecl(0), 137782fa308a765aeac2acb39c4e697c937ec21185bMike Stump ObjCFastEnumerationStateTypeDecl(0), FILEDecl(0), jmp_bufDecl(0), 138083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump sigjmp_bufDecl(0), BlockDescriptorType(0), BlockDescriptorExtendedType(0), 139bf1a028246d884a540aeafa38e89be59a269b072John McCall NullTypeSourceInfo(QualType()), 140c6fbbedb3e90ff2f04828c36fd839e01468679f5Douglas Gregor SourceMgr(SM), LangOpts(LOpts), FreeMemory(FreeMem), Target(t), 1412e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor Idents(idents), Selectors(sels), 142ac9590effa90406767a544005ed1de52e258306bTed Kremenek BuiltinInfo(builtins), 143ac9590effa90406767a544005ed1de52e258306bTed Kremenek DeclarationNames(*this), 144ac9590effa90406767a544005ed1de52e258306bTed Kremenek ExternalSource(0), PrintingPolicy(LOpts), 145f057bf78a69d37ee511430c88852a85eea19ad15Ted Kremenek LastSDM(0, 0), 146f057bf78a69d37ee511430c88852a85eea19ad15Ted Kremenek UniqueBlockByRefTypeID(0), UniqueBlockParmTypeID(0) { 1470f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCIdRedefinitionType = QualType(); 1480f436560640a1cff5b6d96f80f540770f139453fDavid Chisnall ObjCClassRedefinitionType = QualType(); 149369a3bd9979cf529eed529aa037de713c213e47dFariborz Jahanian ObjCSelRedefinitionType = QualType(); 1501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (size_reserve > 0) Types.reserve(size_reserve); 151e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 15214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff InitBuiltinTypes(); 153e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 154e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 1563478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek // Release the DenseMaps associated with DeclContext objects. 1573478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek // FIXME: Is this the ideal solution? 1583478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek ReleaseDeclContextMaps(); 1597d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 1600054531488928a424666ac11fcdc6bcc5112de52Douglas Gregor if (!FreeMemory) { 1610054531488928a424666ac11fcdc6bcc5112de52Douglas Gregor // Call all of the deallocation functions. 1620054531488928a424666ac11fcdc6bcc5112de52Douglas Gregor for (unsigned I = 0, N = Deallocations.size(); I != N; ++I) 1630054531488928a424666ac11fcdc6bcc5112de52Douglas Gregor Deallocations[I].first(Deallocations[I].second); 1640054531488928a424666ac11fcdc6bcc5112de52Douglas Gregor } 1650054531488928a424666ac11fcdc6bcc5112de52Douglas Gregor 1667d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor // Release all of the memory associated with overridden C++ methods. 1677d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor for (llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::iterator 1687d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor OM = OverriddenMethods.begin(), OMEnd = OverriddenMethods.end(); 1697d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor OM != OMEnd; ++OM) 1707d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor OM->second.Destroy(); 1713478eb6872d836600caf45b0f81c2065d685d6e0Ted Kremenek 172bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek if (FreeMemory) { 173bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Deallocate all the types. 174bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek while (!Types.empty()) { 175bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek Types.back()->Destroy(*this); 176bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek Types.pop_back(); 177bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 178b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 179bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek for (llvm::FoldingSet<ExtQuals>::iterator 180bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek I = ExtQualNodes.begin(), E = ExtQualNodes.end(); I != E; ) { 181bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Increment in loop to prevent using deallocated memory. 1820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Deallocate(&*I++); 183bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 1840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 185503524acc73f2f8280080ca0d200377406001b65Ted Kremenek for (llvm::DenseMap<const ObjCContainerDecl*, 186503524acc73f2f8280080ca0d200377406001b65Ted Kremenek const ASTRecordLayout*>::iterator 187503524acc73f2f8280080ca0d200377406001b65Ted Kremenek I = ObjCLayouts.begin(), E = ObjCLayouts.end(); I != E; ) { 188503524acc73f2f8280080ca0d200377406001b65Ted Kremenek // Increment in loop to prevent using deallocated memory. 189503524acc73f2f8280080ca0d200377406001b65Ted Kremenek if (ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second)) 190503524acc73f2f8280080ca0d200377406001b65Ted Kremenek R->Destroy(*this); 191503524acc73f2f8280080ca0d200377406001b65Ted Kremenek } 192b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 193b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 194dcfcfbec478f7ed96cd8d92f30c29bd4e30d5b9cTed Kremenek // ASTRecordLayout objects in ASTRecordLayouts must always be destroyed 195dcfcfbec478f7ed96cd8d92f30c29bd4e30d5b9cTed Kremenek // even when using the BumpPtrAllocator because they can contain 196dcfcfbec478f7ed96cd8d92f30c29bd4e30d5b9cTed Kremenek // DenseMaps. 197dcfcfbec478f7ed96cd8d92f30c29bd4e30d5b9cTed Kremenek for (llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 198dcfcfbec478f7ed96cd8d92f30c29bd4e30d5b9cTed Kremenek I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); I != E; ) { 199dcfcfbec478f7ed96cd8d92f30c29bd4e30d5b9cTed Kremenek // Increment in loop to prevent using deallocated memory. 200dcfcfbec478f7ed96cd8d92f30c29bd4e30d5b9cTed Kremenek if (ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second)) 201dcfcfbec478f7ed96cd8d92f30c29bd4e30d5b9cTed Kremenek R->Destroy(*this); 202dcfcfbec478f7ed96cd8d92f30c29bd4e30d5b9cTed Kremenek } 203dcfcfbec478f7ed96cd8d92f30c29bd4e30d5b9cTed Kremenek 204ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 2051ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 2061ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 2071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNSEnd = NestedNameSpecifiers.end(); 208bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek NNS != NNSEnd; ) { 209bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek // Increment in loop to prevent using deallocated memory. 2101ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 211bbfd68dd5288c435cfd6aef1264263e5f856958dTed Kremenek } 212ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 213ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 214ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 215ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 216b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2190054531488928a424666ac11fcdc6bcc5112de52Douglas Gregorvoid ASTContext::AddDeallocation(void (*Callback)(void*), void *Data) { 2200054531488928a424666ac11fcdc6bcc5112de52Douglas Gregor Deallocations.push_back(std::make_pair(Callback, Data)); 2210054531488928a424666ac11fcdc6bcc5112de52Douglas Gregor} 2220054531488928a424666ac11fcdc6bcc5112de52Douglas Gregor 2231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 2242cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 2252cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 2262cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 2272cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 2317c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 232dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned counts[] = { 2331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump#define TYPE(Name, Parent) 0, 234dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 235dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 236dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor 0 // Extra 237dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor }; 238c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 2395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 2405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 241dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor counts[(unsigned)T->getTypeClass()]++; 2425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 244dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned Idx = 0; 245dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor unsigned TotalBytes = 0; 246dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define TYPE(Name, Parent) \ 247dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor if (counts[Idx]) \ 248dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 249dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor TotalBytes += counts[Idx] * sizeof(Name##Type); \ 250dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor ++Idx; 251dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#define ABSTRACT_TYPE(Name, Parent) 252dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor#include "clang/AST/TypeNodes.def" 2531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 254dbe833da54e1b6192991b64fc453cd50b5ee7909Douglas Gregor fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 2552cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 2562cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 2572cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 2582cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 2592cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 2605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 263e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallvoid ASTContext::InitBuiltinType(CanQualType &R, BuiltinType::Kind K) { 2646b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BuiltinType *Ty = new (*this, TypeAlignment) BuiltinType(K); 265e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall R = CanQualType::CreateUnsafe(QualType(Ty, 0)); 2666b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Types.push_back(Ty); 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 2705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 2711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 2741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 2765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 2775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 27815b91764d08e886391c865c4a444d7b51141c284Eli Friedman if (LangOpts.CharIsSigned) 2795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 2815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 2825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 2835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 2845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 2855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 2865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 2881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 2905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 2915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 2951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 2995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 30064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 3012df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 3022df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 3032df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 3042df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 3053a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 3063a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 3073a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 3083a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 30964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 310f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 311f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char16Ty, BuiltinType::Char16); 312f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 313f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char16Ty = getFromTargetType(Target.getChar16Type()); 314f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 315f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 316f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith InitBuiltinType(Char32Ty, BuiltinType::Char32); 317f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith else // C99 318f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Char32Ty = getFromTargetType(Target.getChar32Type()); 319f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 3208e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 321898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 322898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 323898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 324898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 325898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 326898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 327898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 328898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 3298e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 3301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Placeholder type for C++0x auto declarations whose real type has 331e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // not yet been deduced. 332e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 3331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 3355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 3388e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 3397e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 3401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 341de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // "Builtin" typedefs set by Sema::ActOnTranslationUnitScope(). 342de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = QualType(); 343de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = QualType(); 34413dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian ObjCSelTypedefType = QualType(); 3451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34613dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian // Builtin types for 'id', 'Class', and 'SEL'. 347de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); 348de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); 34913dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian InitBuiltinType(ObjCBuiltinSelTy, BuiltinType::ObjCSel); 35014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 351a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 3521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 35433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 3556e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 3566e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 3576e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 3585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 360251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorMemberSpecializationInfo * 361663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas GregorASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) { 3627caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Var->isStaticDataMember() && "Not a static data member"); 363663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas Gregor llvm::DenseMap<const VarDecl *, MemberSpecializationInfo *>::iterator Pos 3647caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor = InstantiatedFromStaticDataMember.find(Var); 3657caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor if (Pos == InstantiatedFromStaticDataMember.end()) 3667caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return 0; 3671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3687caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor return Pos->second; 3697caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 3707caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 3711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 372251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas GregorASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl, 373251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor TemplateSpecializationKind TSK) { 3747caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Inst->isStaticDataMember() && "Not a static data member"); 3757caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(Tmpl->isStaticDataMember() && "Not a static data member"); 3767caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor assert(!InstantiatedFromStaticDataMember[Inst] && 3777caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor "Already noted what static data member was instantiated from"); 378251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor InstantiatedFromStaticDataMember[Inst] 379251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor = new (*this) MemberSpecializationInfo(Tmpl, TSK); 3807caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 3817caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 3827ba107a1863ddfa1664555854f0d7bdb3c491c92John McCallNamedDecl * 383ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::getInstantiatedFromUsingDecl(UsingDecl *UUD) { 3847ba107a1863ddfa1664555854f0d7bdb3c491c92John McCall llvm::DenseMap<UsingDecl *, NamedDecl *>::const_iterator Pos 385ed97649e9574b9d854fa4d6109c9333ae0993554John McCall = InstantiatedFromUsingDecl.find(UUD); 386ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (Pos == InstantiatedFromUsingDecl.end()) 3870d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return 0; 3881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3890d8df780aef1acda5962347a32591efc629b6748Anders Carlsson return Pos->second; 3900d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 3910d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 3920d8df780aef1acda5962347a32591efc629b6748Anders Carlssonvoid 393ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::setInstantiatedFromUsingDecl(UsingDecl *Inst, NamedDecl *Pattern) { 394ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert((isa<UsingDecl>(Pattern) || 395ed97649e9574b9d854fa4d6109c9333ae0993554John McCall isa<UnresolvedUsingValueDecl>(Pattern) || 396ed97649e9574b9d854fa4d6109c9333ae0993554John McCall isa<UnresolvedUsingTypenameDecl>(Pattern)) && 397ed97649e9574b9d854fa4d6109c9333ae0993554John McCall "pattern decl is not a using decl"); 398ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert(!InstantiatedFromUsingDecl[Inst] && "pattern already exists"); 399ed97649e9574b9d854fa4d6109c9333ae0993554John McCall InstantiatedFromUsingDecl[Inst] = Pattern; 400ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 401ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 402ed97649e9574b9d854fa4d6109c9333ae0993554John McCallUsingShadowDecl * 403ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::getInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst) { 404ed97649e9574b9d854fa4d6109c9333ae0993554John McCall llvm::DenseMap<UsingShadowDecl*, UsingShadowDecl*>::const_iterator Pos 405ed97649e9574b9d854fa4d6109c9333ae0993554John McCall = InstantiatedFromUsingShadowDecl.find(Inst); 406ed97649e9574b9d854fa4d6109c9333ae0993554John McCall if (Pos == InstantiatedFromUsingShadowDecl.end()) 407ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return 0; 408ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 409ed97649e9574b9d854fa4d6109c9333ae0993554John McCall return Pos->second; 410ed97649e9574b9d854fa4d6109c9333ae0993554John McCall} 411ed97649e9574b9d854fa4d6109c9333ae0993554John McCall 412ed97649e9574b9d854fa4d6109c9333ae0993554John McCallvoid 413ed97649e9574b9d854fa4d6109c9333ae0993554John McCallASTContext::setInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst, 414ed97649e9574b9d854fa4d6109c9333ae0993554John McCall UsingShadowDecl *Pattern) { 415ed97649e9574b9d854fa4d6109c9333ae0993554John McCall assert(!InstantiatedFromUsingShadowDecl[Inst] && "pattern already exists"); 416ed97649e9574b9d854fa4d6109c9333ae0993554John McCall InstantiatedFromUsingShadowDecl[Inst] = Pattern; 4170d8df780aef1acda5962347a32591efc629b6748Anders Carlsson} 4180d8df780aef1acda5962347a32591efc629b6748Anders Carlsson 419d8b285fee4471f393da8ee30f552ceacdc362afaAnders CarlssonFieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { 420d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos 421d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson = InstantiatedFromUnnamedFieldDecl.find(Field); 422d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson if (Pos == InstantiatedFromUnnamedFieldDecl.end()) 423d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return 0; 4241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 425d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson return Pos->second; 426d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 427d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 428d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlssonvoid ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, 429d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson FieldDecl *Tmpl) { 430d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed"); 431d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!Tmpl->getDeclName() && "Template field decl is not unnamed"); 432d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson assert(!InstantiatedFromUnnamedFieldDecl[Inst] && 433d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson "Already noted what unnamed field was instantiated from"); 4341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 435d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; 436d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson} 437d8b285fee4471f393da8ee30f552ceacdc362afaAnders Carlsson 4387d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas GregorASTContext::overridden_cxx_method_iterator 4397d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas GregorASTContext::overridden_methods_begin(const CXXMethodDecl *Method) const { 4407d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos 4417d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor = OverriddenMethods.find(Method); 4427d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor if (Pos == OverriddenMethods.end()) 4437d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return 0; 4447d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 4457d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return Pos->second.begin(); 4467d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor} 4477d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 4487d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas GregorASTContext::overridden_cxx_method_iterator 4497d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas GregorASTContext::overridden_methods_end(const CXXMethodDecl *Method) const { 4507d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos 4517d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor = OverriddenMethods.find(Method); 4527d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor if (Pos == OverriddenMethods.end()) 4537d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return 0; 4547d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 4557d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor return Pos->second.end(); 4567d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor} 4577d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 4587d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregorvoid ASTContext::addOverriddenMethod(const CXXMethodDecl *Method, 4597d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor const CXXMethodDecl *Overridden) { 4607d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor OverriddenMethods[Method].push_back(Overridden); 4617d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor} 4627d10b7eb670b821741b4c96f6cf7afbc3bb39abeDouglas Gregor 4632e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregornamespace { 4641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump class BeforeInTranslationUnit 4652e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor : std::binary_function<SourceRange, SourceRange, bool> { 4662e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor SourceManager *SourceMgr; 4671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4682e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor public: 4692e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 4701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4712e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor bool operator()(SourceRange X, SourceRange Y) { 4722e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 4732e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor } 4742e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor }; 4752e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor} 4762e22253e03e175144aeb9d13350a12fd83f858beDouglas Gregor 477464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 478464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 479464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 480a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 481b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 482b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 483b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 484183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const BuiltinType *BT = T->getAs<BuiltinType>(); 485b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 486b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 487b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 488b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 489b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 490b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 491b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 492b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 493b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 4948b752f10c394b140f9ef89e049cbad1a7676fc25Ken Dyck/// getDeclAlign - Return a conservative estimate of the alignment of the 495af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 496af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 4975d484e8cf710207010720589d89602233de61d01Sebastian Redl/// If @p RefAsPointee, references are treated like their underlying type 4985d484e8cf710207010720589d89602233de61d01Sebastian Redl/// (for alignof), else they're treated like pointers (for CodeGen). 4998b752f10c394b140f9ef89e049cbad1a7676fc25Ken DyckCharUnits ASTContext::getDeclAlign(const Decl *D, bool RefAsPointee) { 500dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 501dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 50240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 503bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Align = std::max(Align, AA->getMaxAlignment()); 504dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 505af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 506af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 5076217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const ReferenceType* RT = T->getAs<ReferenceType>()) { 5085d484e8cf710207010720589d89602233de61d01Sebastian Redl if (RefAsPointee) 5095d484e8cf710207010720589d89602233de61d01Sebastian Redl T = RT->getPointeeType(); 5105d484e8cf710207010720589d89602233de61d01Sebastian Redl else 5115d484e8cf710207010720589d89602233de61d01Sebastian Redl T = getPointerType(RT->getPointeeType()); 5125d484e8cf710207010720589d89602233de61d01Sebastian Redl } 5135d484e8cf710207010720589d89602233de61d01Sebastian Redl if (!T->isIncompleteType() && !T->isFunctionType()) { 5146deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola unsigned MinWidth = Target.getLargeArrayMinWidth(); 5156deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola unsigned ArrayAlign = Target.getLargeArrayAlign(); 5166deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola if (isa<VariableArrayType>(T) && MinWidth != 0) 5176deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola Align = std::max(Align, ArrayAlign); 5186deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola if (ConstantArrayType *CT = dyn_cast<ConstantArrayType>(T)) { 5196deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola unsigned Size = getTypeSize(CT); 5206deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola if (MinWidth != 0 && MinWidth <= Size) 5216deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola Align = std::max(Align, ArrayAlign); 5226deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola } 5234cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 524dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 525dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 526dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 527dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 528dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 52905f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis if (const FieldDecl *FD = dyn_cast<FieldDecl>(VD)) { 53005f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis // In the case of a field in a packed struct, we want the minimum 53105f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis // of the alignment of the field and the alignment of the struct. 53205f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis Align = std::min(Align, 53305f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis getPreferredTypeAlign(FD->getParent()->getTypeForDecl())); 53405f62474dd2b0f1cb69adbe0787f2868788aa949Charles Davis } 535af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 536dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 5378b752f10c394b140f9ef89e049cbad1a7676fc25Ken Dyck return CharUnits::fromQuantity(Align / Target.getCharWidth()); 538af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 539b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 540ea1471e0e967548c596a71469702f8846dbaf3c0John McCallstd::pair<CharUnits, CharUnits> 541ea1471e0e967548c596a71469702f8846dbaf3c0John McCallASTContext::getTypeInfoInChars(const Type *T) { 542ea1471e0e967548c596a71469702f8846dbaf3c0John McCall std::pair<uint64_t, unsigned> Info = getTypeInfo(T); 543ea1471e0e967548c596a71469702f8846dbaf3c0John McCall return std::make_pair(CharUnits::fromQuantity(Info.first / getCharWidth()), 544ea1471e0e967548c596a71469702f8846dbaf3c0John McCall CharUnits::fromQuantity(Info.second / getCharWidth())); 545ea1471e0e967548c596a71469702f8846dbaf3c0John McCall} 546ea1471e0e967548c596a71469702f8846dbaf3c0John McCall 547ea1471e0e967548c596a71469702f8846dbaf3c0John McCallstd::pair<CharUnits, CharUnits> 548ea1471e0e967548c596a71469702f8846dbaf3c0John McCallASTContext::getTypeInfoInChars(QualType T) { 549ea1471e0e967548c596a71469702f8846dbaf3c0John McCall return getTypeInfoInChars(T.getTypePtr()); 550ea1471e0e967548c596a71469702f8846dbaf3c0John McCall} 551ea1471e0e967548c596a71469702f8846dbaf3c0John McCall 552a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 553a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 5540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// 5550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// FIXME: Pointers into different addr spaces could have different sizes and 5560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// alignment requirements: getPointerInfo should take an AddrSpace, this 5570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// should take a QualType, &c. 558d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 5591d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 5605e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 5615e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 562a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 56372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 56472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 56518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 56672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 56772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 56818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 56972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 57072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 5715d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 5725d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 57318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 57418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 57518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 57618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 57718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 57872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 579fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 58018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 58118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 58218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 58318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 584fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 5851d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 5861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 58798be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 5889e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 589030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 590030d8846c7e520330007087e949f621989876e3aChris Lattner break; 5915c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 592213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 593030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 5949fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner const VectorType *VT = cast<VectorType>(T); 5959fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(VT->getElementType()); 5969fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = EltInfo.first*VT->getNumElements(); 5974bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 5986fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 5996fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 6008eefcd353c1d06a10104f69e5079ebab3183f9a3Dan Gohman if (Align & (Align-1)) { 6019fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Align = llvm::NextPowerOf2(Align); 6029fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner Width = llvm::RoundUpToAlignment(Width, Align); 6039fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner } 604030d8846c7e520330007087e949f621989876e3aChris Lattner break; 605030d8846c7e520330007087e949f621989876e3aChris Lattner } 6065d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 6079e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 608a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 609692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 610d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 61118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 61218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 61318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 61418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 61518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 6166f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 6179e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 6189e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 6196f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 620692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 621692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 622692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 6236f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 6249e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 6259e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 6266f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 62764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 62864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 62964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 63064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 631f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char16: 632f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar16Width(); 633f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar16Align(); 634f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 635f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case BuiltinType::Char32: 636f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Width = Target.getChar32Width(); 637f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Align = Target.getChar32Align(); 638f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 639692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 6406f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 6419e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 6429e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 6436f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 644692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 6456f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 6469e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 6479e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 6486f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 649692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 6506f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 6519e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 6529e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 6536f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 654692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 6556f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 6569e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 6579e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 6586f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 659ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 660ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 661ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 662ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 663ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 6646f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 6659e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 6669e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 6676f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6686f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 6695426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 6705426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 6716f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6726f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 6739e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 6749e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 6756f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 6766e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 6776e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 6786e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 6791590d9c0fec4c710c2962e4bb71f76979b5163d3Sebastian Redl break; 680a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 681bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 682d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff case Type::ObjCObjectPointer: 6835426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 684f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 6856f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 686485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 687485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 688485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 689485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 690485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 691485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 6925d484e8cf710207010720589d89602233de61d01Sebastian Redl case Type::LValueReference: 6935d484e8cf710207010720589d89602233de61d01Sebastian Redl case Type::RValueReference: { 6945d484e8cf710207010720589d89602233de61d01Sebastian Redl // alignof and sizeof should never enter this code path here, so we go 6955d484e8cf710207010720589d89602233de61d01Sebastian Redl // the pointer route. 6965d484e8cf710207010720589d89602233de61d01Sebastian Redl unsigned AS = cast<ReferenceType>(T)->getPointeeType().getAddressSpace(); 6975d484e8cf710207010720589d89602233de61d01Sebastian Redl Width = Target.getPointerWidth(AS); 6985d484e8cf710207010720589d89602233de61d01Sebastian Redl Align = Target.getPointerAlign(AS); 6995d484e8cf710207010720589d89602233de61d01Sebastian Redl break; 7005d484e8cf710207010720589d89602233de61d01Sebastian Redl } 701f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 702f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 7035426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 704f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 705f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 706f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 707f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 708f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 7091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> PtrDiffInfo = 7101cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson getTypeInfo(getPointerDiffType()); 7111cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Width = PtrDiffInfo.first; 712f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 713f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 7141cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson Align = PtrDiffInfo.second; 7151cca74ef3627a3a0ab14501d23e336548f6611b2Anders Carlsson break; 716f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 7175d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 7185d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 7195d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 7201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::pair<uint64_t, unsigned> EltInfo = 72198be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 7229e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 7235d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 7245d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 7255d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 726c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall case Type::ObjCObject: 727c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return getTypeInfo(cast<ObjCObjectType>(T)->getBaseType().getTypePtr()); 72844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 7291d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 73044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 73144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 73244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 73344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 73444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 73572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 73672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 7371d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 7381d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 7391d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 7408389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 7418389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 7428389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 7438389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 7441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7451d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 7467176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 7477176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 7481d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 7497176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 7507176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 7517176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 752dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 753a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 7547532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 7559fcfe926432f3c3f7e9a61219e55c352fd358e45Chris Lattner case Type::SubstTemplateTypeParm: 75649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return getTypeInfo(cast<SubstTemplateTypeParmType>(T)-> 75749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall getReplacementType().getTypePtr()); 75849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 75918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 76018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 76140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 762bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Align = std::max(Aligned->getMaxAlignment(), 763bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt getTypeAlign(Typedef->getUnderlyingType().getTypePtr())); 76418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 76518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 76618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 7677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 7687176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 76918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 77018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 77118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 77218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 77318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 77418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 77518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 77618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 777395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson case Type::Decltype: 778395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 779395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson .getTypePtr()); 780395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 781465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case Type::Elaborated: 782465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return getTypeInfo(cast<ElaboratedType>(T)->getNamedType().getTypePtr()); 7831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 78418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 7851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(getCanonicalType(T) != T && 78618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 78718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 78818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 78918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 79018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 79118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 7921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 793464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 7949e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 795a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 796a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 797bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck/// getTypeSizeInChars - Return the size of the specified type, in characters. 798bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck/// This method does not work on incomplete types. 799bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen DyckCharUnits ASTContext::getTypeSizeInChars(QualType T) { 800199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return CharUnits::fromQuantity(getTypeSize(T) / getCharWidth()); 801bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck} 802bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen DyckCharUnits ASTContext::getTypeSizeInChars(const Type *T) { 803199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return CharUnits::fromQuantity(getTypeSize(T) / getCharWidth()); 804bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck} 805bdc601b196c48d4cd56a5ceb45d41ae4e87371abKen Dyck 80616e20cce43385001f33f8e3f90ee345609c805d1Ken Dyck/// getTypeAlignInChars - Return the ABI-specified alignment of a type, in 80786fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck/// characters. This method does not work on incomplete types. 80886fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken DyckCharUnits ASTContext::getTypeAlignInChars(QualType T) { 80986fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck return CharUnits::fromQuantity(getTypeAlign(T) / getCharWidth()); 81086fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck} 81186fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken DyckCharUnits ASTContext::getTypeAlignInChars(const Type *T) { 81286fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck return CharUnits::fromQuantity(getTypeAlign(T) / getCharWidth()); 81386fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck} 81486fa4311c8a330957ff5b765fbb0a7750ecd38c9Ken Dyck 81534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 81634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 81734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 81834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 81934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 82034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 8211eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 8221eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman // Double and long long should be naturally aligned if possible. 823183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType* CT = T->getAs<ComplexType>()) 8241eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T = CT->getElementType().getTypePtr(); 8251eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::Double) || 8261eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman T->isSpecificBuiltinType(BuiltinType::LongLong)) 8271eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman return std::max(ABIAlign, (unsigned)getTypeSize(T)); 8281eed60297ef4701b899c6a3b9680bf08f3403422Eli Friedman 82934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 83034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 83134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 832a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 833a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 834a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 835a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 836a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 837f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 838a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 839a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 840a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 841a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 842a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 843a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 844a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 845a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 846a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 847a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 848a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 849a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 8508e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// ShallowCollectObjCIvars - 8518e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// Collect all ivars, including those synthesized, in the current class. 8528e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian/// 8538e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanianvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 85411062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 8558e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 8568e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 8578e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian Ivars.push_back(*I); 8588e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian } 85911062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian 86011062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian CollectNonClassIvars(OI, Ivars); 8618e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 8628e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 86311062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian/// CollectNonClassIvars - 86411062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian/// This routine collects all other ivars which are not declared in the class. 8657d2aa11c5c3b85a9d727ff868de666ba3bff5b59Ted Kremenek/// This includes synthesized ivars (via @synthesize) and those in 8667d2aa11c5c3b85a9d727ff868de666ba3bff5b59Ted Kremenek// class's @implementation. 8679820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 86811062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanianvoid ASTContext::CollectNonClassIvars(const ObjCInterfaceDecl *OI, 8699820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 8700e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian // Find ivars declared in class extension. 87180aa1cd7973561889e51c1c152c8990a8de9c953Fariborz Jahanian for (const ObjCCategoryDecl *CDecl = OI->getFirstClassExtension(); CDecl; 87280aa1cd7973561889e51c1c152c8990a8de9c953Fariborz Jahanian CDecl = CDecl->getNextClassExtension()) { 8730e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian for (ObjCCategoryDecl::ivar_iterator I = CDecl->ivar_begin(), 8740e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian E = CDecl->ivar_end(); I != E; ++I) { 8750e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian Ivars.push_back(*I); 8760e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian } 8770e5ad255729ee86b8ed57e659029008984517cdeFariborz Jahanian } 87811062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian 8797d2aa11c5c3b85a9d727ff868de666ba3bff5b59Ted Kremenek // Also add any ivar defined in this class's implementation. This 8807d2aa11c5c3b85a9d727ff868de666ba3bff5b59Ted Kremenek // includes synthesized ivars. 88111062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian if (ObjCImplementationDecl *ImplDecl = OI->getImplementation()) { 88211062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian for (ObjCImplementationDecl::ivar_iterator I = ImplDecl->ivar_begin(), 88311062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian E = ImplDecl->ivar_end(); I != E; ++I) 88411062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian Ivars.push_back(*I); 88511062e11236b7bc689dad150e8b490fd6b063ec3Fariborz Jahanian } 8869820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 8879820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 888e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// CollectInheritedProtocols - Collect all protocols in current class and 889e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// those inherited by it. 890e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid ASTContext::CollectInheritedProtocols(const Decl *CDecl, 891432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl*, 8> &Protocols) { 892e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (const ObjCInterfaceDecl *OI = dyn_cast<ObjCInterfaceDecl>(CDecl)) { 893e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 894e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 895e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 896432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 897e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 898b2f812165676230bce5d0215e49a4749c451ca9cFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) { 899b2f812165676230bce5d0215e49a4749c451ca9cFariborz Jahanian Protocols.insert(*P); 900e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 901e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 902b2f812165676230bce5d0215e49a4749c451ca9cFariborz Jahanian } 903e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 904e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian // Categories of this Interface. 905e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (const ObjCCategoryDecl *CDeclChain = OI->getCategoryList(); 906e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CDeclChain; CDeclChain = CDeclChain->getNextClassCategory()) 907e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(CDeclChain, Protocols); 908e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (ObjCInterfaceDecl *SD = OI->getSuperClass()) 909e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian while (SD) { 910e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(SD, Protocols); 911e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian SD = SD->getSuperClass(); 912e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 913b170ca5f4a8397c10e52050ff5df6885a3e6eca9Benjamin Kramer } else if (const ObjCCategoryDecl *OC = dyn_cast<ObjCCategoryDecl>(CDecl)) { 914e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OC->protocol_begin(), 915e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OC->protocol_end(); P != PE; ++P) { 916e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 917432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 918e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 919e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 920e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 921e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 922b170ca5f4a8397c10e52050ff5df6885a3e6eca9Benjamin Kramer } else if (const ObjCProtocolDecl *OP = dyn_cast<ObjCProtocolDecl>(CDecl)) { 923e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = OP->protocol_begin(), 924e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = OP->protocol_end(); P != PE; ++P) { 925e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian ObjCProtocolDecl *Proto = (*P); 926432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian Protocols.insert(Proto); 927e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 928e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian PE = Proto->protocol_end(); P != PE; ++P) 929e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian CollectInheritedProtocols(*P, Protocols); 930e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 931e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 932e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 933e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 9343bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanianunsigned ASTContext::CountNonClassIvars(const ObjCInterfaceDecl *OI) { 9353bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian unsigned count = 0; 9363bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian // Count ivars declared in class extension. 93780aa1cd7973561889e51c1c152c8990a8de9c953Fariborz Jahanian for (const ObjCCategoryDecl *CDecl = OI->getFirstClassExtension(); CDecl; 93880aa1cd7973561889e51c1c152c8990a8de9c953Fariborz Jahanian CDecl = CDecl->getNextClassExtension()) 939b170ca5f4a8397c10e52050ff5df6885a3e6eca9Benjamin Kramer count += CDecl->ivar_size(); 940b170ca5f4a8397c10e52050ff5df6885a3e6eca9Benjamin Kramer 9413bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian // Count ivar defined in this class's implementation. This 9423bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian // includes synthesized ivars. 9433bfacdf6f0706987c1b33c625cd68fb880881c22Fariborz Jahanian if (ObjCImplementationDecl *ImplDecl = OI->getImplementation()) 944b170ca5f4a8397c10e52050ff5df6885a3e6eca9Benjamin Kramer count += ImplDecl->ivar_size(); 945b170ca5f4a8397c10e52050ff5df6885a3e6eca9Benjamin Kramer 9468e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian return count; 9478e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian} 9488e6ac1d80055fa37b9b84029c7e751624ba7f84cFariborz Jahanian 9498a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCInterfaceDecl,or NULL if none exists. 9508a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { 9518a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 9528a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 9538a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 9548a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCImplementationDecl>(I->second); 9558a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 9568a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9578a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Get the implementation of ObjCCategoryDecl, or NULL if none exists. 9588a1d722f13df383600f36d77f842957c8adb5f1bArgyrios KyrtzidisObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { 9598a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 9608a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis I = ObjCImpls.find(D); 9618a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis if (I != ObjCImpls.end()) 9628a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return cast<ObjCCategoryImplDecl>(I->second); 9638a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis return 0; 9648a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9658a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 9668a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCInterfaceDecl. 9678a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, 9688a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImplementationDecl *ImplD) { 9698a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(IFaceD && ImplD && "Passed null params"); 9708a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[IFaceD] = ImplD; 9718a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9728a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis/// \brief Set the implementation of ObjCCategoryDecl. 9738a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidisvoid ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, 9748a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCCategoryImplDecl *ImplD) { 9758a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis assert(CatD && ImplD && "Passed null params"); 9768a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis ObjCImpls[CatD] = ImplD; 9778a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis} 9788a1d722f13df383600f36d77f842957c8adb5f1bArgyrios Kyrtzidis 979a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Allocate an uninitialized TypeSourceInfo. 980b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 981a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// The caller should initialize the memory held by TypeSourceInfo using 982b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// the TypeLoc wrappers. 983b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// 984b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// \param T the type that will be the basis for type source info. This type 985b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// should refer to how the declarator was written in source code, not to 986b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis/// what type semantic analysis resolved the declarator to. 987a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo *ASTContext::CreateTypeSourceInfo(QualType T, 988109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall unsigned DataSize) { 989109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall if (!DataSize) 990109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall DataSize = TypeLoc::getFullDataSizeForType(T); 991109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall else 992109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall assert(DataSize == TypeLoc::getFullDataSizeForType(T) && 993a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall "incorrect data size provided to CreateTypeSourceInfo!"); 994109de5ead1dfcb3bc985cddb8cb3ed5bcecad88dJohn McCall 995a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 996a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall (TypeSourceInfo*)BumpAlloc.Allocate(sizeof(TypeSourceInfo) + DataSize, 8); 997a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (TInfo) TypeSourceInfo(T); 998a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 999b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis} 1000b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis 1001a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo *ASTContext::getTrivialTypeSourceInfo(QualType T, 1002a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall SourceLocation L) { 1003a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = CreateTypeSourceInfo(T); 1004a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall DI->getTypeLoc().initialize(L); 1005a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall return DI; 1006a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall} 1007a4eb74d4dfe126c686dc708fec444c85ffb73b47John McCall 1008b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1009b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 1010b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 1011b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1012b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 1013b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 1014b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 1015b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 1016b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 1017b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 1018a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1019a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 1020a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 1021a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 10220953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getExtQualType(const Type *TypeNode, Qualifiers Quals) { 10230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned Fast = Quals.getFastQualifiers(); 10240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeFastQualifiers(); 10250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Check if we've already instantiated this type. 10270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall llvm::FoldingSetNodeID ID; 10280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQuals::Profile(ID, TypeNode, Quals); 10290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall void *InsertPos = 0; 10300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ExtQuals *EQ = ExtQualNodes.FindNodeOrInsertPos(ID, InsertPos)) { 10310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(EQ->getQualifiers() == Quals); 10320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(EQ, Fast); 10330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 10340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 10350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10366b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtQuals *New = new (*this, TypeAlignment) ExtQuals(*this, TypeNode, Quals); 10370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ExtQualNodes.InsertNode(New, InsertPos); 10380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType T = QualType(New, Fast); 10390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return T; 10400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 10410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10420953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType ASTContext::getVolatileType(QualType T) { 10430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanT = getCanonicalType(T); 10440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (CanT.isVolatileQualified()) return T; 10450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 10470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 10480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addVolatile(); 10490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 10510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall} 10520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1053f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 1054f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 1055f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 1056f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 1057b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 10580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 10590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 10600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 10610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 10621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an address space specified, it cannot get 10640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 10650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasAddressSpace() && 10660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot be in multiple addr spaces!"); 10670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addAddressSpace(AddressSpace); 10681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1070ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 1071ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1072b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 10730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr) { 1074d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 1075b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 1076d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 10771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10784027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian if (T->isPointerType()) { 10796217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 108058f9f2c884af6b72d036b746a016d8031d31cb7aSteve Naroff if (Pointee->isAnyPointerType()) { 10814027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 10824027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian return getPointerType(ResultType); 10834027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 10844027cd1b924e29784a49085b1717f35cdd719146Fariborz Jahanian } 10851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10860953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If we are composing extended qualifiers together, merge together 10870953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // into one ExtQuals node. 10880953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 10890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *TypeNode = Quals.strip(T); 10901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If this type already has an ObjCGC specified, it cannot get 10920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // another one. 10930953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert(!Quals.hasObjCGCAttr() && 10940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Type cannot have multiple ObjCGCs!"); 10950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.addObjCGCAttr(GCAttr); 10961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getExtQualType(TypeNode, Quals); 1098d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1099a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 1100264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindolastatic QualType getExtFunctionType(ASTContext& Context, QualType T, 1101264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const FunctionType::ExtInfo &Info) { 11020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType ResultType; 110343c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (const PointerType *Pointer = T->getAs<PointerType>()) { 110443c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor QualType Pointee = Pointer->getPointeeType(); 1105264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola ResultType = getExtFunctionType(Context, Pointee, Info); 110643c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (ResultType == Pointee) 110743c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1108ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1109ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getPointerType(ResultType); 111043c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else if (const BlockPointerType *BlockPointer 111143c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor = T->getAs<BlockPointerType>()) { 111243c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor QualType Pointee = BlockPointer->getPointeeType(); 1113264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola ResultType = getExtFunctionType(Context, Pointee, Info); 111443c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (ResultType == Pointee) 111543c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1116ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1117ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getBlockPointerType(ResultType); 1118ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor } else if (const FunctionType *F = T->getAs<FunctionType>()) { 1119264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola if (F->getExtInfo() == Info) 112043c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1121ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 112243c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor if (const FunctionNoProtoType *FNPT = dyn_cast<FunctionNoProtoType>(F)) { 1123ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor ResultType = Context.getFunctionNoProtoType(FNPT->getResultType(), 1124264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info); 11250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } else { 112643c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor const FunctionProtoType *FPT = cast<FunctionProtoType>(F); 11270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ResultType 1128ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor = Context.getFunctionType(FPT->getResultType(), FPT->arg_type_begin(), 1129ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getNumArgs(), FPT->isVariadic(), 1130ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getTypeQuals(), 1131ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->hasExceptionSpec(), 1132ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->hasAnyExceptionSpec(), 1133ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->getNumExceptions(), 1134ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor FPT->exception_begin(), 1135264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info); 11360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 113743c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor } else 113843c79c2b07abc7ba6d9f243b84ee6539de4d2652Douglas Gregor return T; 1139ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1140ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return Context.getQualifiedType(ResultType, T.getLocalQualifiers()); 1141ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 1142ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1143ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getNoReturnType(QualType T, bool AddNoReturn) { 1144425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo Info = getFunctionExtInfo(T); 1145264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return getExtFunctionType(*this, T, 1146264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info.withNoReturn(AddNoReturn)); 1147ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor} 1148ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor 1149ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas GregorQualType ASTContext::getCallConvType(QualType T, CallingConv CallConv) { 1150425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo Info = getFunctionExtInfo(T); 1151264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return getExtFunctionType(*this, T, 1152264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info.withCallingConv(CallConv)); 11532455636163fdd18581d7fdae816433f886d88213Mike Stump} 11542455636163fdd18581d7fdae816433f886d88213Mike Stump 1155425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael EspindolaQualType ASTContext::getRegParmType(QualType T, unsigned RegParm) { 1156425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo Info = getFunctionExtInfo(T); 1157425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return getExtFunctionType(*this, T, 1158425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola Info.withRegParm(RegParm)); 1159425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola} 1160425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 11615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 11625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 11645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 11681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 11715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 11721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1176467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1177f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 11781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 1181f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11836b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ComplexType *New = new (*this, TypeAlignment) ComplexType(T, Canonical); 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 11905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 11915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 11961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 11995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 12001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 12025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1204467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 1205f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 12061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1209f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12116b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall PointerType *New = new (*this, TypeAlignment) PointerType(T, Canonical); 12125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getBlockPointerType - Return the uniqued reference to the type for 12185618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 12195618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1220296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1221296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 12225618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 12235618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 12245618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 12251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12265618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 12275618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 12285618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 12295618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 12301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the block pointee type isn't canonical, this won't be a canonical 12325618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 12335618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 1234467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!T.isCanonical()) { 12355618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 12361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12375618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 12385618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 12395618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1240f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12415618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 12426b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall BlockPointerType *New 12436b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) BlockPointerType(T, Canonical); 12445618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 12455618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 12465618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 12475618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 12485618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 12497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 12507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 125154e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType ASTContext::getLValueReferenceType(QualType T, bool SpelledAsLValue) { 12525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 12535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 125554e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, SpelledAsLValue); 12565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 12597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 12617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 126254e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 126354e14c4db764c0636160d26c5bbf491637c83a76John McCall 12645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 12655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 126754e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!SpelledAsLValue || InnerRef || !T.isCanonical()) { 126854e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 126954e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getLValueReferenceType(getCanonicalType(PointeeType)); 12707c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12717c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 12727c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 12737c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 12747c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12757c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 12767c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12776b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall LValueReferenceType *New 127854e14c4db764c0636160d26c5bbf491637c83a76John McCall = new (*this, TypeAlignment) LValueReferenceType(T, Canonical, 127954e14c4db764c0636160d26c5bbf491637c83a76John McCall SpelledAsLValue); 12807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 12817c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 128254e14c4db764c0636160d26c5bbf491637c83a76John McCall 12837c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 12847c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 12857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 12877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 12887c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 12897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 12907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 12917c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 129254e14c4db764c0636160d26c5bbf491637c83a76John McCall ReferenceType::Profile(ID, T, false); 12937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 12947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 12957c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 12967c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12977c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 12987c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 129954e14c4db764c0636160d26c5bbf491637c83a76John McCall const ReferenceType *InnerRef = T->getAs<ReferenceType>(); 130054e14c4db764c0636160d26c5bbf491637c83a76John McCall 13017c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 13027c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 13037c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 130454e14c4db764c0636160d26c5bbf491637c83a76John McCall if (InnerRef || !T.isCanonical()) { 130554e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); 130654e14c4db764c0636160d26c5bbf491637c83a76John McCall Canonical = getRValueReferenceType(getCanonicalType(PointeeType)); 13077c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13097c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 13107c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1311f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13146b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall RValueReferenceType *New 13156b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); 13165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13177c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 13185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1321f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1322f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 13231eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) { 1324f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1325f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1326f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1327f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1328f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1329f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1330f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1331f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1332f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1333f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1334f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1335f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1336f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 133787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor if (!T.isCanonical() || !Cls->isCanonicalUnqualified()) { 1338f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1339f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1340f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1341f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1342f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1343f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1344f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 13456b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall MemberPointerType *New 13466b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); 1347f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1348f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1349f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1350f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1351f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 13521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getConstantArrayType - Return the unique reference to the type for an 1353fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 13541eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getConstantArrayType(QualType EltTy, 135538aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1356c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1357c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1358923d56d436f750bc1f29db50e641078725558a1bSebastian Redl assert((EltTy->isDependentType() || 1359923d56d436f750bc1f29db50e641078725558a1bSebastian Redl EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && 1360587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman "Constant array of VLAs is illegal!"); 1361587cbdfd95f4b0aaccc14b31f5debe85d5daf7edEli Friedman 136238aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 136338aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 136438aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 136538aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 13661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 13680be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 13691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 13711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ConstantArrayType *ATP = 13727192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 13735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 13741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 13765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 13775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1378467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 13791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1380c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 13815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 13821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ConstantArrayType *NewIP = 13837192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1384f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13876b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType *New = new(*this,TypeAlignment) 13886b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 13897192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 13905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 13915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1394bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1395bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 13967e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getVariableArrayType(QualType EltTy, 13977e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1398c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 13997e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14007e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1401c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1402c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1403715e9c8a39437347e838aa108df443fe1086d359Douglas Gregor QualType CanonType; 1404715e9c8a39437347e838aa108df443fe1086d359Douglas Gregor 1405715e9c8a39437347e838aa108df443fe1086d359Douglas Gregor if (!EltTy.isCanonical()) { 1406715e9c8a39437347e838aa108df443fe1086d359Douglas Gregor if (NumElts) 1407715e9c8a39437347e838aa108df443fe1086d359Douglas Gregor NumElts->Retain(); 1408715e9c8a39437347e838aa108df443fe1086d359Douglas Gregor CanonType = getVariableArrayType(getCanonicalType(EltTy), NumElts, ASM, 1409715e9c8a39437347e838aa108df443fe1086d359Douglas Gregor EltTypeQuals, Brackets); 1410715e9c8a39437347e838aa108df443fe1086d359Douglas Gregor } 1411715e9c8a39437347e838aa108df443fe1086d359Douglas Gregor 14126b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VariableArrayType *New = new(*this, TypeAlignment) 1413715e9c8a39437347e838aa108df443fe1086d359Douglas Gregor VariableArrayType(EltTy, CanonType, NumElts, ASM, EltTypeQuals, Brackets); 1414c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1415c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1416c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1417c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1418c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1419c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1420898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1421898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 142204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor/// type. 14237e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 14247e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Expr *NumElts, 1425898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 14267e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor unsigned EltTypeQuals, 14277e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets) { 1428cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor assert((!NumElts || NumElts->isTypeDependent() || 1429cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor NumElts->isValueDependent()) && 1430898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1431898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 143204d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor void *InsertPos = 0; 1433cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayType *Canon = 0; 1434789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor llvm::FoldingSetNodeID ID; 1435cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1436cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor if (NumElts) { 1437cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // Dependently-sized array types that do not have a specified 1438cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // number of elements will have their sizes deduced from an 1439cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor // initializer. 1440cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayType::Profile(ID, *this, getCanonicalType(EltTy), ASM, 1441cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor EltTypeQuals, NumElts); 1442cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1443cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor Canon = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1444cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor } 1445cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 144604d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor DependentSizedArrayType *New; 144704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (Canon) { 144804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // We already have a canonical version of this array type; use it as 144904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor // the canonical type for a newly-built type. 14506b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14516b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(Canon, 0), 14526b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 145304d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 145404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType CanonEltTy = getCanonicalType(EltTy); 145504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor if (CanonEltTy == EltTy) { 14566b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14576b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, QualType(), 14586b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 1459cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor 1460789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (NumElts) { 1461789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentSizedArrayType *CanonCheck 1462789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1463789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CanonCheck && "Dependent-sized canonical array type broken"); 1464789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CanonCheck; 1465cb78d8852a454684c987220132cdb5e54dd00121Douglas Gregor DependentSizedArrayTypes.InsertNode(New, InsertPos); 1466789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 146704d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } else { 146804d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor QualType Canon = getDependentSizedArrayType(CanonEltTy, NumElts, 146904d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor ASM, EltTypeQuals, 147004d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor SourceRange()); 14716b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 14726b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedArrayType(*this, EltTy, Canon, 14736b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumElts, ASM, EltTypeQuals, Brackets); 147404d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 147504d4beee4b86af20a9e4457023d3925cab8f9908Douglas Gregor } 14761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1477898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1478898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1479898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1480898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1481c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1482c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1483c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1484c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 14850be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1486c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1487c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 14881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (IncompleteArrayType *ATP = 1489c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1490c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1491c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1492c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1493c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1494c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1495c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1496467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!EltTy.isCanonical()) { 1497f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 14982bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1499c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1500c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1501c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1502c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1503f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15042bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1505c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 15066b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType *New = new (*this, TypeAlignment) 15076b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall IncompleteArrayType(EltTy, Canonical, ASM, EltTypeQuals); 1508c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1509c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1510c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1511c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1512fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1513fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 151473322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 151573322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 151682287d19ded35248c4ce6a425ce74116a13ce44eJohn ThompsonQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts, 1517788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner VectorType::AltiVecSpecific AltiVecSpec) { 15185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 15191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1520f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 152173322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 15221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 15245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 1525788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner VectorType::Profile(ID, vecType, NumElts, Type::Vector, AltiVecSpec); 1526788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner 15275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 15285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 15295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 15305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 15325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 15335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1534788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner if (!vecType.isCanonical() || (AltiVecSpec == VectorType::AltiVec)) { 1535788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // pass VectorType::NotAltiVec for AltiVecSpec to make AltiVec canonical 1536788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // vector type (except 'vector bool ...' and 'vector Pixel') the same as 1537788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // the equivalent GCC vector types 1538788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts, 1539788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner VectorType::NotAltiVec); 15401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 15425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1543f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 15445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15456b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall VectorType *New = new (*this, TypeAlignment) 1546788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner VectorType(vecType, NumElts, Canonical, AltiVecSpec); 15475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 15485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 15495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 15505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1552213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 155373322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1554213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 155573322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 15561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1557f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1558213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 15591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 156073322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 156173322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 1562788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner VectorType::Profile(ID, vecType, NumElts, Type::ExtVector, 1563788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner VectorType::NotAltiVec); 156473322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 156573322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 156673322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 156773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 156873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 156973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 157073322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 1571467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall if (!vecType.isCanonical()) { 1572213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 15731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 157473322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 157573322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1576f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 157773322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 15786b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType *New = new (*this, TypeAlignment) 15796b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall ExtVectorType(vecType, NumElts, Canonical); 158073322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 158173322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 158273322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 158373322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 158473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 15851eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 15869cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *SizeExpr, 15879cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 15882ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor llvm::FoldingSetNodeID ID; 15891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), 15902ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SizeExpr); 15911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15922ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor void *InsertPos = 0; 15932ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *Canon 15942ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 15952ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorType *New; 15962ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (Canon) { 15972ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // We already have a canonical version of this array type; use it as 15982ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor // the canonical type for a newly-built type. 15996b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16006b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), 16016b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall SizeExpr, AttrLoc); 16022ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 16032ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType CanonVecTy = getCanonicalType(vecType); 16042ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor if (CanonVecTy == vecType) { 16056b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16066b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, 16076b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall AttrLoc); 1608789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 1609789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentSizedExtVectorType *CanonCheck 1610789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1611789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CanonCheck && "Dependent-sized ext_vector canonical type broken"); 1612789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CanonCheck; 16132ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor DependentSizedExtVectorTypes.InsertNode(New, InsertPos); 16142ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } else { 16152ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor QualType Canon = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, 16162ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor SourceLocation()); 16176b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall New = new (*this, TypeAlignment) 16186b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall DependentSizedExtVectorType(*this, vecType, Canon, SizeExpr, AttrLoc); 16192ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 16202ec09f1dc123e1942ed756e8ee4fef86451eac9eDouglas Gregor } 16211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16229cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Types.push_back(New); 16239cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(New, 0); 16249cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 16259cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 162672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 16275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1628264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael EspindolaQualType ASTContext::getFunctionNoProtoType(QualType ResultTy, 1629264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const FunctionType::ExtInfo &Info) { 1630264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const CallingConv CallConv = Info.getCC(); 16315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 16325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 16335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 1634264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionNoProtoType::Profile(ID, ResultTy, Info); 16351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionNoProtoType *FT = 163872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 16395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 16401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 1642ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor if (!ResultTy.isCanonical() || 164304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall getCanonicalCallConv(CallConv) != CallConv) { 1644264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Canonical = 1645264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola getFunctionNoProtoType(getCanonicalType(ResultTy), 1646264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info.withCallingConv(getCanonicalCallConv(CallConv))); 16471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 164972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 165072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1651f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 16525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16546b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall FunctionNoProtoType *New = new (*this, TypeAlignment) 1655264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionNoProtoType(ResultTy, Canonical, Info); 16565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 165772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 16585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 16595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 166361710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1664971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1665465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl unsigned TypeQuals, bool hasExceptionSpec, 1666465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl bool hasAnyExceptionSpec, unsigned NumExs, 1667264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const QualType *ExArray, 1668264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const FunctionType::ExtInfo &Info) { 1669264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola const CallingConv CallConv= Info.getCC(); 16705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 16715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 16725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 167372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1674465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1675264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola NumExs, ExArray, Info); 16765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 16781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionProtoType *FTP = 167972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 16805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 1681465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1682465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // Determine whether the type being created is already canonical or not. 168354e14c4db764c0636160d26c5bbf491637c83a76John McCall bool isCanonical = !hasExceptionSpec && ResultTy.isCanonical(); 16845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 168554e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!ArgArray[i].isCanonicalAsParam()) 16865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 16875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 1689465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // The exception spec is not part of the canonical type. 16905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 169104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!isCanonical || getCanonicalCallConv(CallConv) != CallConv) { 16925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 16935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 16945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 169554e14c4db764c0636160d26c5bbf491637c83a76John McCall CanonicalArgs.push_back(getCanonicalParamType(ArgArray[i])); 1696465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1697f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 1698beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CanonicalArgs.data(), NumArgs, 169947259d9ca7840dd66f06f5f11da7768b23d1e0fdDouglas Gregor isVariadic, TypeQuals, false, 1700264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola false, 0, 0, 1701264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Info.withCallingConv(getCanonicalCallConv(CallConv))); 1702465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 17035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 170472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 170572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1706f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 17075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1708465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 170972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1710465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // for two variable size arrays (for parameter and exception types) at the 1711465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl // end of them. 17121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FunctionProtoType *FTP = 1713465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1714465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl NumArgs*sizeof(QualType) + 17156b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall NumExs*sizeof(QualType), TypeAlignment); 171672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1717465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1718264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola ExArray, NumExs, Canonical, Info); 17195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 172072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 17215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 17225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17243cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall#ifndef NDEBUG 17253cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallstatic bool NeedsInjectedClassNameType(const RecordDecl *D) { 17263cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (!isa<CXXRecordDecl>(D)) return false; 17273cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall const CXXRecordDecl *RD = cast<CXXRecordDecl>(D); 17283cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (isa<ClassTemplatePartialSpecializationDecl>(RD)) 17293cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return true; 17303cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (RD->getDescribedClassTemplate() && 17313cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall !isa<ClassTemplateSpecializationDecl>(RD)) 17323cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return true; 17333cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return false; 17343cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall} 17353cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall#endif 17363cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 17373cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall/// getInjectedClassNameType - Return the unique reference to the 17383cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall/// injected class name type for the specified templated declaration. 17393cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallQualType ASTContext::getInjectedClassNameType(CXXRecordDecl *Decl, 17403cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall QualType TST) { 17413cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(NeedsInjectedClassNameType(Decl)); 17423cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall if (Decl->TypeForDecl) { 17433cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(isa<InjectedClassNameType>(Decl->TypeForDecl)); 17443cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } else if (CXXRecordDecl *PrevDecl 17453cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall = cast_or_null<CXXRecordDecl>(Decl->getPreviousDeclaration())) { 17463cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(PrevDecl->TypeForDecl && "previous declaration has no type"); 17473cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall Decl->TypeForDecl = PrevDecl->TypeForDecl; 17483cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall assert(isa<InjectedClassNameType>(Decl->TypeForDecl)); 17493cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } else { 175031f17ecbef57b5679c017c375db330546b7b5145John McCall Decl->TypeForDecl = 175131f17ecbef57b5679c017c375db330546b7b5145John McCall new (*this, TypeAlignment) InjectedClassNameType(Decl, TST); 17523cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall Types.push_back(Decl->TypeForDecl); 17533cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall } 17543cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return QualType(Decl->TypeForDecl, 0); 17553cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall} 17563cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 17572ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 17582ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 1759becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCallQualType ASTContext::getTypeDeclTypeSlow(const TypeDecl *Decl) { 17601e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 1761becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!Decl->TypeForDecl && "TypeForDecl present in slow case"); 17621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 176319c8576b7328f4dc2d07682f5da552875c1912efJohn McCall if (const TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 17642ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1765becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall 1766becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!isa<TemplateTypeParmDecl>(Decl) && 1767becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall "Template type parameter types are always available."); 1768becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall 176919c8576b7328f4dc2d07682f5da552875c1912efJohn McCall if (const RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1770becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!Record->getPreviousDeclaration() && 1771becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall "struct/union has previous declaration"); 1772becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!NeedsInjectedClassNameType(Record)); 1773becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) RecordType(Record); 177419c8576b7328f4dc2d07682f5da552875c1912efJohn McCall } else if (const EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1775becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall assert(!Enum->getPreviousDeclaration() && 1776becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall "enum has previous declaration"); 1777becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall Decl->TypeForDecl = new (*this, TypeAlignment) EnumType(Enum); 177819c8576b7328f4dc2d07682f5da552875c1912efJohn McCall } else if (const UnresolvedUsingTypenameDecl *Using = 1779ed97649e9574b9d854fa4d6109c9333ae0993554John McCall dyn_cast<UnresolvedUsingTypenameDecl>(Decl)) { 1780ed97649e9574b9d854fa4d6109c9333ae0993554John McCall Decl->TypeForDecl = new (*this, TypeAlignment) UnresolvedUsingType(Using); 17819fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else 1782becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall llvm_unreachable("TypeDecl without a type?"); 178349aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1784becb8d5a6ab5103393eac5344ae69bcb860601ddJohn McCall Types.push_back(Decl->TypeForDecl); 178549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 17862ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 17872ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 17885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 17895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 17909763e221e16026ddf487d2564ed349d2c874a1a1Argyrios KyrtzidisQualType 17919763e221e16026ddf487d2564ed349d2c874a1a1Argyrios KyrtzidisASTContext::getTypedefType(const TypedefDecl *Decl, QualType Canonical) { 17925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 17931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17949763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis if (Canonical.isNull()) 17959763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis Canonical = getCanonicalType(Decl->getUnderlyingType()); 17966b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Decl->TypeForDecl = new(*this, TypeAlignment) 17976b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypedefType(Type::Typedef, Decl, Canonical); 17985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 17995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 18005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 18015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 180249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall/// \brief Retrieve a substitution-result type. 180349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallQualType 180449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCallASTContext::getSubstTemplateTypeParmType(const TemplateTypeParmType *Parm, 180549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall QualType Replacement) { 1806467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(Replacement.isCanonical() 180749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall && "replacement types must always be canonical"); 180849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 180949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall llvm::FoldingSetNodeID ID; 181049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType::Profile(ID, Parm, Replacement); 181149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall void *InsertPos = 0; 181249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType *SubstParm 181349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall = SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 181449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 181549a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall if (!SubstParm) { 181649a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstParm = new (*this, TypeAlignment) 181749a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmType(Parm, Replacement); 181849a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall Types.push_back(SubstParm); 181949a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos); 182049a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall } 182149a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 182249a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall return QualType(SubstParm, 0); 182349a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall} 182449a832bd499d6f61c23655f1fac99f0dd229756eJohn McCall 1825fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 18261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parameter or parameter pack with the given depth, index, and (optionally) 182776e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson/// name. 18281eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 182976e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson bool ParameterPack, 1830efed5c832de630715dd42211dd3b2aab5dd97a1bDouglas Gregor IdentifierInfo *Name) { 1831fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 1832efed5c832de630715dd42211dd3b2aab5dd97a1bDouglas Gregor TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 1833fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 18341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateTypeParmType *TypeParm 1835fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1836fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1837fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1838fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 18391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1840efed5c832de630715dd42211dd3b2aab5dd97a1bDouglas Gregor if (Name) { 184176e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 1842efed5c832de630715dd42211dd3b2aab5dd97a1bDouglas Gregor TypeParm = new (*this, TypeAlignment) 1843efed5c832de630715dd42211dd3b2aab5dd97a1bDouglas Gregor TemplateTypeParmType(Depth, Index, ParameterPack, Name, Canon); 1844789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 1845789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor TemplateTypeParmType *TypeCheck 1846789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1847789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!TypeCheck && "Template type parameter canonical type broken"); 1848789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)TypeCheck; 184976e4ce42a30cee4dc40ce7c6014874fbc4f9baa7Anders Carlsson } else 18506b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeParm = new (*this, TypeAlignment) 18516b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TemplateTypeParmType(Depth, Index, ParameterPack); 1852fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1853fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1854fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1855fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1856fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1857fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1858fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 18593cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallTypeSourceInfo * 18603cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCallASTContext::getTemplateSpecializationTypeInfo(TemplateName Name, 18613cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall SourceLocation NameLoc, 18623cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall const TemplateArgumentListInfo &Args, 18633cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall QualType CanonType) { 18643cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall QualType TST = getTemplateSpecializationType(Name, Args, CanonType); 18653cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 18663cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TypeSourceInfo *DI = CreateTypeSourceInfo(TST); 18673cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TemplateSpecializationTypeLoc TL 18683cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall = cast<TemplateSpecializationTypeLoc>(DI->getTypeLoc()); 18693cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setTemplateNameLoc(NameLoc); 18703cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setLAngleLoc(Args.getLAngleLoc()); 18713cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setRAngleLoc(Args.getRAngleLoc()); 18723cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) 18733cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall TL.setArgLocInfo(i, Args[i].getLocInfo()); 18743cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall return DI; 18753cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall} 18763cb0ebd5f76abcb776f7cb4062bd79e3268c0dc4John McCall 18771eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 18787532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 1879d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo &Args, 188071d74bc0d6e522ce7c21a599db8e19d3883b518fJohn McCall QualType Canon) { 1881d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall unsigned NumArgs = Args.size(); 1882d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 1883833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall llvm::SmallVector<TemplateArgument, 4> ArgVec; 1884833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.reserve(NumArgs); 1885833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall for (unsigned i = 0; i != NumArgs; ++i) 1886833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall ArgVec.push_back(Args[i].getArgument()); 1887833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 188831f17ecbef57b5679c017c375db330546b7b5145John McCall return getTemplateSpecializationType(Template, ArgVec.data(), NumArgs, 188971d74bc0d6e522ce7c21a599db8e19d3883b518fJohn McCall Canon); 1890833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall} 1891833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1892833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallQualType 1893833ca991c1bfc967f0995974ca86f66ba1f666b5John McCallASTContext::getTemplateSpecializationType(TemplateName Template, 18947532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 18957532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 189671d74bc0d6e522ce7c21a599db8e19d3883b518fJohn McCall QualType Canon) { 1897b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor if (!Canon.isNull()) 1898b88e888404ad0a2bdd9bfae457e8530bb38a87c5Douglas Gregor Canon = getCanonicalType(Canon); 18999763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis else 19009763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis Canon = getCanonicalTemplateSpecializationType(Template, Args, NumArgs); 1901fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 19021275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Allocate the (non-canonical) template specialization type, but don't 19031275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // try to unique it: these types typically have location information that 19041275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // we don't unique and don't want to lose. 19051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void *Mem = Allocate((sizeof(TemplateSpecializationType) + 190640808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 19076b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeAlignment); 19081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateSpecializationType *Spec 1909ef99001908e799c388f1363b1e607dad5f5b57d3John McCall = new (Mem) TemplateSpecializationType(Template, 191031f17ecbef57b5679c017c375db330546b7b5145John McCall Args, NumArgs, 1911828e226ab7ed08b3eb766549e9d3306432137460Douglas Gregor Canon); 19121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 191355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 19141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(Spec, 0); 191555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 191655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 19171eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 19189763e221e16026ddf487d2564ed349d2c874a1a1Argyrios KyrtzidisASTContext::getCanonicalTemplateSpecializationType(TemplateName Template, 19199763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis const TemplateArgument *Args, 19209763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis unsigned NumArgs) { 19219763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis // Build the canonical template specialization type. 19229763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis TemplateName CanonTemplate = getCanonicalTemplateName(Template); 19239763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis llvm::SmallVector<TemplateArgument, 4> CanonArgs; 19249763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis CanonArgs.reserve(NumArgs); 19259763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis for (unsigned I = 0; I != NumArgs; ++I) 19269763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis CanonArgs.push_back(getCanonicalTemplateArgument(Args[I])); 19279763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis 19289763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis // Determine whether this canonical template specialization type already 19299763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis // exists. 19309763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis llvm::FoldingSetNodeID ID; 19319763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis TemplateSpecializationType::Profile(ID, CanonTemplate, 19329763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis CanonArgs.data(), NumArgs, *this); 19339763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis 19349763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis void *InsertPos = 0; 19359763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis TemplateSpecializationType *Spec 19369763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 19379763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis 19389763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis if (!Spec) { 19399763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis // Allocate a new canonical template specialization type. 19409763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis void *Mem = Allocate((sizeof(TemplateSpecializationType) + 19419763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis sizeof(TemplateArgument) * NumArgs), 19429763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis TypeAlignment); 19439763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis Spec = new (Mem) TemplateSpecializationType(CanonTemplate, 19449763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis CanonArgs.data(), NumArgs, 19459763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis QualType()); 19469763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis Types.push_back(Spec); 19479763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 19489763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis } 19499763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis 19509763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis assert(Spec->isDependentType() && 19519763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis "Non-dependent template-id type must have a canonical type"); 19529763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis return QualType(Spec, 0); 19539763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis} 19549763e221e16026ddf487d2564ed349d2c874a1a1Argyrios Kyrtzidis 19559763e221e16026ddf487d2564ed349d2c874a1a1Argyrios KyrtzidisQualType 1956465d41b92b2c862f3062c412a0538db65c6a2661Abramo BagnaraASTContext::getElaboratedType(ElaboratedTypeKeyword Keyword, 1957465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NestedNameSpecifier *NNS, 1958465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara QualType NamedType) { 1959e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1960465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ElaboratedType::Profile(ID, Keyword, NNS, NamedType); 1961e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1962e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 1963465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 1964e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1965e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1966e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1967789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor QualType Canon = NamedType; 1968789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (!Canon.isCanonical()) { 1969789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor Canon = getCanonicalType(NamedType); 1970465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ElaboratedType *CheckT = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 1971465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara assert(!CheckT && "Elaborated canonical type broken"); 1972789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckT; 1973789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 1974789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 1975465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara T = new (*this) ElaboratedType(Keyword, NNS, NamedType, Canon); 1976e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1977465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ElaboratedTypes.InsertNode(T, InsertPos); 1978e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1979e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1980e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 19814a2023f5014e82389d5980d307b89c545dbbac81Douglas GregorQualType ASTContext::getDependentNameType(ElaboratedTypeKeyword Keyword, 19824a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NestedNameSpecifier *NNS, 19834a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor const IdentifierInfo *Name, 19844a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor QualType Canon) { 1985d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1986d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1987d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1988d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 19894a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor ElaboratedTypeKeyword CanonKeyword = Keyword; 19904a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor if (Keyword == ETK_None) 19914a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor CanonKeyword = ETK_Typename; 19924a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor 19934a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor if (CanonNNS != NNS || CanonKeyword != Keyword) 19944a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor Canon = getDependentNameType(CanonKeyword, CanonNNS, Name); 1995d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1996d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1997d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 19984a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor DependentNameType::Profile(ID, Keyword, NNS, Name); 1999d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2000d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 20014714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor DependentNameType *T 20024714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor = DependentNameTypes.FindNodeOrInsertPos(ID, InsertPos); 2003d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 2004d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 2005d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 20064a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor T = new (*this) DependentNameType(Keyword, NNS, Name, Canon); 2007d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 20084714c12a1ab759156b78be8f109ea4c12213af57Douglas Gregor DependentNameTypes.InsertNode(T, InsertPos); 20091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 2010d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2011d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 20121eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType 201333500955d731c73717af52088b7fc0e7a85681e7John McCallASTContext::getDependentTemplateSpecializationType( 201433500955d731c73717af52088b7fc0e7a85681e7John McCall ElaboratedTypeKeyword Keyword, 20154a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NestedNameSpecifier *NNS, 201633500955d731c73717af52088b7fc0e7a85681e7John McCall const IdentifierInfo *Name, 201733500955d731c73717af52088b7fc0e7a85681e7John McCall const TemplateArgumentListInfo &Args) { 201833500955d731c73717af52088b7fc0e7a85681e7John McCall // TODO: avoid this copy 201933500955d731c73717af52088b7fc0e7a85681e7John McCall llvm::SmallVector<TemplateArgument, 16> ArgCopy; 202033500955d731c73717af52088b7fc0e7a85681e7John McCall for (unsigned I = 0, E = Args.size(); I != E; ++I) 202133500955d731c73717af52088b7fc0e7a85681e7John McCall ArgCopy.push_back(Args[I].getArgument()); 202233500955d731c73717af52088b7fc0e7a85681e7John McCall return getDependentTemplateSpecializationType(Keyword, NNS, Name, 202333500955d731c73717af52088b7fc0e7a85681e7John McCall ArgCopy.size(), 202433500955d731c73717af52088b7fc0e7a85681e7John McCall ArgCopy.data()); 202533500955d731c73717af52088b7fc0e7a85681e7John McCall} 202633500955d731c73717af52088b7fc0e7a85681e7John McCall 202733500955d731c73717af52088b7fc0e7a85681e7John McCallQualType 202833500955d731c73717af52088b7fc0e7a85681e7John McCallASTContext::getDependentTemplateSpecializationType( 202933500955d731c73717af52088b7fc0e7a85681e7John McCall ElaboratedTypeKeyword Keyword, 203033500955d731c73717af52088b7fc0e7a85681e7John McCall NestedNameSpecifier *NNS, 203133500955d731c73717af52088b7fc0e7a85681e7John McCall const IdentifierInfo *Name, 203233500955d731c73717af52088b7fc0e7a85681e7John McCall unsigned NumArgs, 203333500955d731c73717af52088b7fc0e7a85681e7John McCall const TemplateArgument *Args) { 20341734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 20351734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 2036789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor llvm::FoldingSetNodeID ID; 203733500955d731c73717af52088b7fc0e7a85681e7John McCall DependentTemplateSpecializationType::Profile(ID, *this, Keyword, NNS, 203833500955d731c73717af52088b7fc0e7a85681e7John McCall Name, NumArgs, Args); 2039789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 2040789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor void *InsertPos = 0; 204133500955d731c73717af52088b7fc0e7a85681e7John McCall DependentTemplateSpecializationType *T 204233500955d731c73717af52088b7fc0e7a85681e7John McCall = DependentTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 2043789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor if (T) 2044789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor return QualType(T, 0); 2045789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 204633500955d731c73717af52088b7fc0e7a85681e7John McCall NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 204733500955d731c73717af52088b7fc0e7a85681e7John McCall 204833500955d731c73717af52088b7fc0e7a85681e7John McCall ElaboratedTypeKeyword CanonKeyword = Keyword; 204933500955d731c73717af52088b7fc0e7a85681e7John McCall if (Keyword == ETK_None) CanonKeyword = ETK_Typename; 20501734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 205133500955d731c73717af52088b7fc0e7a85681e7John McCall bool AnyNonCanonArgs = false; 205233500955d731c73717af52088b7fc0e7a85681e7John McCall llvm::SmallVector<TemplateArgument, 16> CanonArgs(NumArgs); 205333500955d731c73717af52088b7fc0e7a85681e7John McCall for (unsigned I = 0; I != NumArgs; ++I) { 205433500955d731c73717af52088b7fc0e7a85681e7John McCall CanonArgs[I] = getCanonicalTemplateArgument(Args[I]); 205533500955d731c73717af52088b7fc0e7a85681e7John McCall if (!CanonArgs[I].structurallyEquals(Args[I])) 205633500955d731c73717af52088b7fc0e7a85681e7John McCall AnyNonCanonArgs = true; 2057789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor } 20581734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 205933500955d731c73717af52088b7fc0e7a85681e7John McCall QualType Canon; 206033500955d731c73717af52088b7fc0e7a85681e7John McCall if (AnyNonCanonArgs || CanonNNS != NNS || CanonKeyword != Keyword) { 206133500955d731c73717af52088b7fc0e7a85681e7John McCall Canon = getDependentTemplateSpecializationType(CanonKeyword, CanonNNS, 206233500955d731c73717af52088b7fc0e7a85681e7John McCall Name, NumArgs, 206333500955d731c73717af52088b7fc0e7a85681e7John McCall CanonArgs.data()); 206433500955d731c73717af52088b7fc0e7a85681e7John McCall 206533500955d731c73717af52088b7fc0e7a85681e7John McCall // Find the insert position again. 206633500955d731c73717af52088b7fc0e7a85681e7John McCall DependentTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 206733500955d731c73717af52088b7fc0e7a85681e7John McCall } 206833500955d731c73717af52088b7fc0e7a85681e7John McCall 206933500955d731c73717af52088b7fc0e7a85681e7John McCall void *Mem = Allocate((sizeof(DependentTemplateSpecializationType) + 207033500955d731c73717af52088b7fc0e7a85681e7John McCall sizeof(TemplateArgument) * NumArgs), 207133500955d731c73717af52088b7fc0e7a85681e7John McCall TypeAlignment); 2072ef99001908e799c388f1363b1e607dad5f5b57d3John McCall T = new (Mem) DependentTemplateSpecializationType(Keyword, NNS, 207333500955d731c73717af52088b7fc0e7a85681e7John McCall Name, NumArgs, Args, Canon); 20741734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 207533500955d731c73717af52088b7fc0e7a85681e7John McCall DependentTemplateSpecializationTypes.InsertNode(T, InsertPos); 20761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return QualType(T, 0); 20771734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 20781734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 207988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 208088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 208188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 208288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 20832e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 208488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 208588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2086c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallstatic bool areSortedAndUniqued(ObjCProtocolDecl * const *Protocols, 208754e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned NumProtocols) { 208854e14c4db764c0636160d26c5bbf491637c83a76John McCall if (NumProtocols == 0) return true; 208954e14c4db764c0636160d26c5bbf491637c83a76John McCall 209054e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 1; i != NumProtocols; ++i) 209154e14c4db764c0636160d26c5bbf491637c83a76John McCall if (!CmpProtocolNames(Protocols[i-1], Protocols[i])) 209254e14c4db764c0636160d26c5bbf491637c83a76John McCall return false; 209354e14c4db764c0636160d26c5bbf491637c83a76John McCall return true; 209454e14c4db764c0636160d26c5bbf491637c83a76John McCall} 209554e14c4db764c0636160d26c5bbf491637c83a76John McCall 209654e14c4db764c0636160d26c5bbf491637c83a76John McCallstatic void SortAndUniqueProtocols(ObjCProtocolDecl **Protocols, 209788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 209888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 20991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 210088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 210188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 210288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 210388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 210488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 210588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 210688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 210788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2108c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallQualType ASTContext::getObjCObjectType(QualType BaseType, 2109c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCProtocolDecl * const *Protocols, 2110c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall unsigned NumProtocols) { 2111c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // If the base type is an interface and there aren't any protocols 2112c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // to add, then the interface type will do just fine. 2113c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (!NumProtocols && isa<ObjCInterfaceType>(BaseType)) 2114c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return BaseType; 2115d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 2116c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Look in the folding set for an existing type. 2117c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall llvm::FoldingSetNodeID ID; 2118c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectTypeImpl::Profile(ID, BaseType, Protocols, NumProtocols); 2119d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff void *InsertPos = 0; 2120c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (ObjCObjectType *QT = ObjCObjectTypes.FindNodeOrInsertPos(ID, InsertPos)) 2121c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return QualType(QT, 0); 2122d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff 2123c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Build the canonical type, which has the canonical base type and 2124c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // a sorted-and-uniqued list of protocols. 212554e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 2126c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall bool ProtocolsSorted = areSortedAndUniqued(Protocols, NumProtocols); 2127c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (!ProtocolsSorted || !BaseType.isCanonical()) { 2128c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (!ProtocolsSorted) { 21290237941e0beb0c929934b66ad29443b484d987feBenjamin Kramer llvm::SmallVector<ObjCProtocolDecl*, 8> Sorted(Protocols, 21300237941e0beb0c929934b66ad29443b484d987feBenjamin Kramer Protocols + NumProtocols); 213154e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned UniqueCount = NumProtocols; 213254e14c4db764c0636160d26c5bbf491637c83a76John McCall 213354e14c4db764c0636160d26c5bbf491637c83a76John McCall SortAndUniqueProtocols(&Sorted[0], UniqueCount); 2134c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Canonical = getObjCObjectType(getCanonicalType(BaseType), 2135c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall &Sorted[0], UniqueCount); 213654e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 2137c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Canonical = getObjCObjectType(getCanonicalType(BaseType), 2138c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Protocols, NumProtocols); 213954e14c4db764c0636160d26c5bbf491637c83a76John McCall } 214054e14c4db764c0636160d26c5bbf491637c83a76John McCall 214154e14c4db764c0636160d26c5bbf491637c83a76John McCall // Regenerate InsertPos. 2142c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectTypes.FindNodeOrInsertPos(ID, InsertPos); 214354e14c4db764c0636160d26c5bbf491637c83a76John McCall } 214454e14c4db764c0636160d26c5bbf491637c83a76John McCall 2145c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall unsigned Size = sizeof(ObjCObjectTypeImpl); 2146c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Size += NumProtocols * sizeof(ObjCProtocolDecl *); 2147fd6a0887a099256c35a5b23e9afd517ffe95fa0aDouglas Gregor void *Mem = Allocate(Size, TypeAlignment); 2148c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectTypeImpl *T = 2149c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall new (Mem) ObjCObjectTypeImpl(Canonical, BaseType, Protocols, NumProtocols); 21501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2151c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Types.push_back(T); 2152c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectTypes.InsertNode(T, InsertPos); 2153c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return QualType(T, 0); 2154d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff} 215588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 2156c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 2157c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// the given object type. 2158c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallQualType ASTContext::getObjCObjectPointerType(QualType ObjectT) { 21594b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 2160c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectPointerType::Profile(ID, ObjectT); 21611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21624b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 2163c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (ObjCObjectPointerType *QT = 2164c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 21654b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 21661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2167c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Find the canonical object type. 216854e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Canonical; 2169c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (!ObjectT.isCanonical()) { 2170c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Canonical = getObjCObjectPointerType(getCanonicalType(ObjectT)); 217154e14c4db764c0636160d26c5bbf491637c83a76John McCall 2172c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Regenerate InsertPos. 2173c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 217454e14c4db764c0636160d26c5bbf491637c83a76John McCall } 217554e14c4db764c0636160d26c5bbf491637c83a76John McCall 2176c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // No match. 2177c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void *Mem = Allocate(sizeof(ObjCObjectPointerType), TypeAlignment); 2178c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectPointerType *QType = 2179c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall new (Mem) ObjCObjectPointerType(Canonical, ObjectT); 218024fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 218124fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis Types.push_back(QType); 2182c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 218324fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis return QualType(QType, 0); 218424fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis} 218524fab41057e4b67ed69a6b4027d5ae0f2f6934dcArgyrios Kyrtzidis 2186c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// getObjCInterfaceType - Return the unique reference to the type for the 2187c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall/// specified ObjC interface decl. The list of protocols is optional. 2188c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl) { 2189c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (Decl->TypeForDecl) 2190c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return QualType(Decl->TypeForDecl, 0); 2191c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 2192c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // FIXME: redeclarations? 2193c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void *Mem = Allocate(sizeof(ObjCInterfaceType), TypeAlignment); 2194c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCInterfaceType *T = new (Mem) ObjCInterfaceType(Decl); 2195c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Decl->TypeForDecl = T; 2196c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Types.push_back(T); 2197c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return QualType(T, 0); 2198c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall} 2199c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 220072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 220172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 22029752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 22031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// DeclRefExpr's. This doesn't effect the type checker, since it operates 22049752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 220572564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 2206dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor TypeOfExprType *toe; 2207b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (tofExpr->isTypeDependent()) { 2208b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor llvm::FoldingSetNodeID ID; 2209b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType::Profile(ID, *this, tofExpr); 22101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2211b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor void *InsertPos = 0; 2212b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprType *Canon 2213b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); 2214b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor if (Canon) { 2215b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // We already have a "canonical" version of an identical, dependent 2216b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // typeof(expr) type. Use that as our canonical type. 22176b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, 2218b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor QualType((TypeOfExprType*)Canon, 0)); 2219b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2220b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor else { 2221b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor // Build a new, canonical typeof(expr) type. 22226b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon 22236b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall = new (*this, TypeAlignment) DependentTypeOfExprType(*this, tofExpr); 2224b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); 2225b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor toe = Canon; 2226b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } 2227b197572cf1cd70a817a1f546478cb2cb9112c48eDouglas Gregor } else { 2228dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType Canonical = getCanonicalType(tofExpr->getType()); 22296b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, Canonical); 2230dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 22319752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 22329752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 2233d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2234d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 22359752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 22369752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 22379752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 22381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 22399752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 2240d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 2241f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 22426b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall TypeOfType *tot = new (*this, TypeAlignment) TypeOfType(tofType, Canonical); 22439752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 22449752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 2245d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 2246d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 224760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// getDecltypeForExpr - Given an expr, will return the decltype for that 224860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson/// expression, according to the rules in C++0x [dcl.type.simple]p4 224960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlssonstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 2250a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson if (e->isTypeDependent()) 2251a07c33e64e1169e4261f7748c7f9191091a3ad2eAnders Carlsson return Context.DependentTy; 22521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 225360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is an id expression or a class member access, decltype(e) is defined 225460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // as the type of the entity named by e. 225560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 225660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 225760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return VD->getType(); 225860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 225960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 226060a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 226160a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return FD->getType(); 226260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson } 226360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // If e is a function call or an invocation of an overloaded operator, 226460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // (parentheses around e are ignored), decltype(e) is defined as the 226560a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // return type of that function. 226660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 226760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return CE->getCallReturnType(); 22681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 226960a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson QualType T = e->getType(); 22701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 227260a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson // defined as T&, otherwise decltype(e) is defined as T. 227360a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson if (e->isLvalue(Context) == Expr::LV_Valid) 227460a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson T = Context.getLValueReferenceType(T); 22751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 227660a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson return T; 227760a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson} 227860a9a2a404a4cf259d39133383e922aa00ca9043Anders Carlsson 2279395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 2280395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// DecltypeType AST's. The only motivation to unique these nodes would be 2281395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 22821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// an issue. This doesn't effect the type checker, since it operates 2283395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson/// on canonical type's (which are always unique). 2284395b475a4474f1c7574d927ad142ca0c7997cbcaAnders CarlssonQualType ASTContext::getDecltypeType(Expr *e) { 2285dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor DecltypeType *dt; 22869d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (e->isTypeDependent()) { 22879d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor llvm::FoldingSetNodeID ID; 22889d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType::Profile(ID, *this, e); 22891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22909d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor void *InsertPos = 0; 22919d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeType *Canon 22929d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); 22939d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor if (Canon) { 22949d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // We already have a "canonical" version of an equivalent, dependent 22959d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // decltype type. Use that as our canonical type. 22966b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, DependentTy, 22979d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor QualType((DecltypeType*)Canon, 0)); 22989d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 22999d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor else { 23009d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor // Build a new, canonical typeof(expr) type. 23016b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall Canon = new (*this, TypeAlignment) DependentDecltypeType(*this, e); 23029d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor DependentDecltypeTypes.InsertNode(Canon, InsertPos); 23039d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor dt = Canon; 23049d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } 23059d702ae1cd5cfa19d884cbef77e1df99395138bbDouglas Gregor } else { 2306dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor QualType T = getDecltypeForExpr(e, *this); 23076b304a0254a13f42390b865ff5ba668a49cc58aeJohn McCall dt = new (*this, TypeAlignment) DecltypeType(e, T, getCanonicalType(T)); 2308dd0257c77719a13d4acd513df40b04300cbfc871Douglas Gregor } 2309395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson Types.push_back(dt); 2310395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson return QualType(dt, 0); 2311395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson} 2312395b475a4474f1c7574d927ad142ca0c7997cbcaAnders Carlsson 23135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 23145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 2315e607ed068334bacb8d7b093996b4671c6ca79e25Mike StumpQualType ASTContext::getTagDeclType(const TagDecl *Decl) { 2316d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 2317e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // FIXME: What is the design on getTagDeclType when it requires casting 2318e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump // away const? mutable? 2319e607ed068334bacb8d7b093996b4671c6ca79e25Mike Stump return getTypeDeclType(const_cast<TagDecl*>(Decl)); 23205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 23231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 23241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// needs to agree with the definition in <stddef.h>. 2325a3ccda58913cc1a4b8564e349448b12acc462da7Anders CarlssonCanQualType ASTContext::getSizeType() const { 2326b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 23275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 23285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 232964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 233064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 233164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 233264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 233364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 233464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 233564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 233664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 233764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 233864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 233964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 234064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 234164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 234264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 23438b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 23448b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 23458b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 2346b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 23478b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 23488b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 2349e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2350e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 2351e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 2352e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 235354e14c4db764c0636160d26c5bbf491637c83a76John McCallCanQualType ASTContext::getCanonicalParamType(QualType T) { 235454e14c4db764c0636160d26c5bbf491637c83a76John McCall // Push qualifiers into arrays, and then discard any remaining 235554e14c4db764c0636160d26c5bbf491637c83a76John McCall // qualifiers. 235654e14c4db764c0636160d26c5bbf491637c83a76John McCall T = getCanonicalType(T); 235754e14c4db764c0636160d26c5bbf491637c83a76John McCall const Type *Ty = T.getTypePtr(); 235854e14c4db764c0636160d26c5bbf491637c83a76John McCall 235954e14c4db764c0636160d26c5bbf491637c83a76John McCall QualType Result; 236054e14c4db764c0636160d26c5bbf491637c83a76John McCall if (isa<ArrayType>(Ty)) { 236154e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getArrayDecayedType(QualType(Ty,0)); 236254e14c4db764c0636160d26c5bbf491637c83a76John McCall } else if (isa<FunctionType>(Ty)) { 236354e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = getPointerType(QualType(Ty, 0)); 236454e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 236554e14c4db764c0636160d26c5bbf491637c83a76John McCall Result = QualType(Ty, 0); 236654e14c4db764c0636160d26c5bbf491637c83a76John McCall } 236754e14c4db764c0636160d26c5bbf491637c83a76John McCall 236854e14c4db764c0636160d26c5bbf491637c83a76John McCall return CanQualType::CreateUnsafe(Result); 236954e14c4db764c0636160d26c5bbf491637c83a76John McCall} 237054e14c4db764c0636160d26c5bbf491637c83a76John McCall 237177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 237277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 237377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 237477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 237577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 237677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 237750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas GregorCanQualType ASTContext::getCanonicalType(QualType T) { 23780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Quals; 23790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ptr = Quals.strip(T); 23800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType CanType = Ptr->getCanonicalTypeInternal(); 23810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 23820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // The canonical internal type will be the canonical type *except* 23830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // that we push type qualifiers down through array types. 23841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23850953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If there are no new qualifiers to push down, stop here. 23860953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!Quals.hasQualifiers()) 238750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(CanType); 2388c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 23890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the type qualifiers are on an array type, get the canonical 23900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type of the array with the qualifiers applied to the element 23910953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // type. 2392c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 2393c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 23940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return CanQualType::CreateUnsafe(getQualifiedType(CanType, Quals)); 23951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2396c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2397c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 23980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(AT->getElementType(), Quals); 2399c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 24001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2401c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 240250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 240350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getConstantArrayType(NewEltTy, CAT->getSize(), 240450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor CAT->getSizeModifier(), 24050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2406c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 240750d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 240850d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 24090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 24101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2411898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 241250d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe( 241350d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor getDependentSizedArrayType(NewEltTy, 2414bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2415bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 241650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor DSAT->getSizeModifier(), 24170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 241887a924e37dc40c6e3e2b33d1dbd646aeccf4c15bDouglas Gregor DSAT->getBracketsRange())->getCanonicalTypeInternal()); 2419898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2420c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 242150d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor return CanQualType::CreateUnsafe(getVariableArrayType(NewEltTy, 2422bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 2423bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr()->Retain() : 0, 242450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getSizeModifier(), 24250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 242650d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor VAT->getBracketsRange())); 2427c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 2428c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 242928e318cc6008c2bc008f0caee70dc736a03d6289Chandler CarruthQualType ASTContext::getUnqualifiedArrayType(QualType T, 243028e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth Qualifiers &Quals) { 24315535c38a2fcface6c13bc8bbeca66882de2fa227Chandler Carruth Quals = T.getQualifiers(); 24329dadd94e1c17fa030d1f88d8f2113ff59ccc6714Douglas Gregor const ArrayType *AT = getAsArrayType(T); 24339dadd94e1c17fa030d1f88d8f2113ff59ccc6714Douglas Gregor if (!AT) { 24345535c38a2fcface6c13bc8bbeca66882de2fa227Chandler Carruth return T.getUnqualifiedType(); 243528e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 243628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 243728e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth QualType Elt = AT->getElementType(); 2438c1ae0a8b0022a9fbb50d3413139f36ec5d8a63beZhongxing Xu QualType UnqualElt = getUnqualifiedArrayType(Elt, Quals); 243928e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth if (Elt == UnqualElt) 244028e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return T; 244128e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 24429dadd94e1c17fa030d1f88d8f2113ff59ccc6714Douglas Gregor if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) { 244328e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getConstantArrayType(UnqualElt, CAT->getSize(), 244428e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth CAT->getSizeModifier(), 0); 244528e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 244628e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 24479dadd94e1c17fa030d1f88d8f2113ff59ccc6714Douglas Gregor if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) { 244828e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getIncompleteArrayType(UnqualElt, IAT->getSizeModifier(), 0); 244928e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth } 245028e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 24519dadd94e1c17fa030d1f88d8f2113ff59ccc6714Douglas Gregor if (const VariableArrayType *VAT = dyn_cast<VariableArrayType>(AT)) { 24529dadd94e1c17fa030d1f88d8f2113ff59ccc6714Douglas Gregor return getVariableArrayType(UnqualElt, 24539dadd94e1c17fa030d1f88d8f2113ff59ccc6714Douglas Gregor VAT->getSizeExpr() ? 24549dadd94e1c17fa030d1f88d8f2113ff59ccc6714Douglas Gregor VAT->getSizeExpr()->Retain() : 0, 24559dadd94e1c17fa030d1f88d8f2113ff59ccc6714Douglas Gregor VAT->getSizeModifier(), 24569dadd94e1c17fa030d1f88d8f2113ff59ccc6714Douglas Gregor VAT->getIndexTypeCVRQualifiers(), 24579dadd94e1c17fa030d1f88d8f2113ff59ccc6714Douglas Gregor VAT->getBracketsRange()); 24589dadd94e1c17fa030d1f88d8f2113ff59ccc6714Douglas Gregor } 24599dadd94e1c17fa030d1f88d8f2113ff59ccc6714Douglas Gregor 24609dadd94e1c17fa030d1f88d8f2113ff59ccc6714Douglas Gregor const DependentSizedArrayType *DSAT = cast<DependentSizedArrayType>(AT); 246128e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth return getDependentSizedArrayType(UnqualElt, DSAT->getSizeExpr()->Retain(), 246228e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth DSAT->getSizeModifier(), 0, 246328e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth SourceRange()); 246428e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth} 246528e318cc6008c2bc008f0caee70dc736a03d6289Chandler Carruth 24665a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor/// UnwrapSimilarPointerTypes - If T1 and T2 are pointer types that 24675a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor/// may be similar (C++ 4.4), replaces T1 and T2 with the type that 24685a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor/// they point to and return true. If T1 and T2 aren't pointer types 24695a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor/// or pointer-to-member types, or if they are not similar at this 24705a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor/// level, returns false and leaves T1 and T2 unchanged. Top-level 24715a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor/// qualifiers on T1 and T2 are ignored. This function will typically 24725a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor/// be called in a loop that successively "unwraps" pointer and 24735a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor/// pointer-to-member types to compare them at each level. 24745a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregorbool ASTContext::UnwrapSimilarPointerTypes(QualType &T1, QualType &T2) { 24755a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor const PointerType *T1PtrType = T1->getAs<PointerType>(), 24765a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor *T2PtrType = T2->getAs<PointerType>(); 24775a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor if (T1PtrType && T2PtrType) { 24785a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor T1 = T1PtrType->getPointeeType(); 24795a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor T2 = T2PtrType->getPointeeType(); 24805a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor return true; 24815a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor } 24825a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor 24835a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor const MemberPointerType *T1MPType = T1->getAs<MemberPointerType>(), 24845a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor *T2MPType = T2->getAs<MemberPointerType>(); 24855a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor if (T1MPType && T2MPType && 24865a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor hasSameUnqualifiedType(QualType(T1MPType->getClass(), 0), 24875a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor QualType(T2MPType->getClass(), 0))) { 24885a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor T1 = T1MPType->getPointeeType(); 24895a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor T2 = T2MPType->getPointeeType(); 24905a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor return true; 24915a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor } 24925a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor 24935a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor if (getLangOptions().ObjC1) { 24945a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor const ObjCObjectPointerType *T1OPType = T1->getAs<ObjCObjectPointerType>(), 24955a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor *T2OPType = T2->getAs<ObjCObjectPointerType>(); 24965a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor if (T1OPType && T2OPType) { 24975a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor T1 = T1OPType->getPointeeType(); 24985a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor T2 = T2OPType->getPointeeType(); 24995a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor return true; 25005a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor } 25015a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor } 25025a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor 25035a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor // FIXME: Block pointers, too? 25045a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor 25055a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor return false; 25065a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor} 25075a57efd7bf88a4a13018e0471ded8063a4abe8afDouglas Gregor 250880ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCallDeclarationName ASTContext::getNameForTemplate(TemplateName Name) { 250980ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (TemplateDecl *TD = Name.getAsTemplateDecl()) 251080ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return TD->getDeclName(); 251180ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 251280ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (DependentTemplateName *DTN = Name.getAsDependentTemplateName()) { 251380ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall if (DTN->isIdentifier()) { 251480ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return DeclarationNames.getIdentifier(DTN->getIdentifier()); 251580ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } else { 251680ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall return DeclarationNames.getCXXOperatorName(DTN->getOperator()); 251780ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } 251880ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall } 251980ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 25200bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall OverloadedTemplateStorage *Storage = Name.getAsOverloadedTemplate(); 25210bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(Storage); 25220bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall return (*Storage->begin())->getDeclName(); 252380ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall} 252480ad16f4b2b350ddbaae21a52975e63df5aafc2cJohn McCall 252525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 25263e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) { 25273e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor if (TemplateTemplateParmDecl *TTP 25283e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor = dyn_cast<TemplateTemplateParmDecl>(Template)) 25293e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor Template = getCanonicalTemplateTemplateParmDecl(TTP); 25303e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor 25313e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor // The canonical template name is the canonical template declaration. 253297fbaa2a38804268a024f1a104b43fcf8b4411b0Argyrios Kyrtzidis return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); 25333e1274f2b99cb99c03cc8e2c6517c37d330b597aDouglas Gregor } 253425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 25350bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(!Name.getAsOverloadedTemplate()); 25361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 253725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 253825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 253925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 254025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 254125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 2542db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregorbool ASTContext::hasSameTemplateName(TemplateName X, TemplateName Y) { 2543db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor X = getCanonicalTemplateName(X); 2544db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor Y = getCanonicalTemplateName(Y); 2545db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor return X.getAsVoidPointer() == Y.getAsVoidPointer(); 2546db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor} 2547db0d4b751e83b8841b8f48f913f17e50467f13d4Douglas Gregor 25481eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateArgument 25491275ae098acda31fe0e434510c729fcfed0458a1Douglas GregorASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) { 25501275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor switch (Arg.getKind()) { 25511275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Null: 25521275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 25531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25541275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Expression: 25551275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Arg; 25561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25571275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Declaration: 2558833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(Arg.getAsDecl()->getCanonicalDecl()); 25591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2560788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor case TemplateArgument::Template: 2561788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor return TemplateArgument(getCanonicalTemplateName(Arg.getAsTemplate())); 2562788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor 25631275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Integral: 2564833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(*Arg.getAsIntegral(), 25651275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor getCanonicalType(Arg.getIntegralType())); 25661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25671275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Type: 2568833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return TemplateArgument(getCanonicalType(Arg.getAsType())); 25691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25701275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor case TemplateArgument::Pack: { 25711275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // FIXME: Allocate in ASTContext 25721275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument *CanonArgs = new TemplateArgument[Arg.pack_size()]; 25731275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor unsigned Idx = 0; 25741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (TemplateArgument::pack_iterator A = Arg.pack_begin(), 25751275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor AEnd = Arg.pack_end(); 25761275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor A != AEnd; (void)++A, ++Idx) 25771275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor CanonArgs[Idx] = getCanonicalTemplateArgument(*A); 25781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25791275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor TemplateArgument Result; 25801275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor Result.setArgumentPack(CanonArgs, Arg.pack_size(), false); 25811275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return Result; 25821275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 25831275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor } 25841275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 25851275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor // Silence GCC warning 25861275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor assert(false && "Unhandled template argument kind"); 25871275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor return TemplateArgument(); 25881275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor} 25891275ae098acda31fe0e434510c729fcfed0458a1Douglas Gregor 2590d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 2591d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 25921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!NNS) 2593d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2594d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2595d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 2596d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 2597d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 25981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 2599d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 2600d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 2601d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2602d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 2603d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 2604d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 2605d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 2606d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2607d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 2608d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 2609d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 26101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return NestedNameSpecifier::Create(*this, 0, 26111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 2612d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 2613d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2614d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2615d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 2616d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 2617d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 2618d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 2619d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2620d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 2621d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 2622d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 2623d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 2624c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 2625c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 2626c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 2627a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor if (!T.hasLocalQualifiers()) { 2628c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 2629c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2630c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 2631c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 26321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Handle the common negative case fast. 2634c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 26350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!isa<ArrayType>(CType)) 2636c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 26371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Apply any qualifiers from the array type to the element type. This 2639c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 2640c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 26411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2642c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 2643c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 264450d62d1b4a98adbc83de8f8cd1379ea1c25656f7Douglas Gregor // we must propagate them down into the element type. 26450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 26460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 26470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall const Type *Ty = Qs.strip(T.getDesugaredType()); 26481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2649c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 2650c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 26510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ATy == 0 || Qs.empty()) 2652c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 26531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2654c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 2655c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 2656c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 2657c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 26580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualType NewEltTy = getQualifiedType(ATy->getElementType(), Qs); 26591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2660c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 2661c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2662c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 26630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall CAT->getIndexTypeCVRQualifiers())); 2664c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2665c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2666c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 26670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall IAT->getIndexTypeCVRQualifiers())); 2668898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 26691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const DependentSizedArrayType *DSAT 2670898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 2671898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 26721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getDependentSizedArrayType(NewEltTy, 2673bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr() ? 2674bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman DSAT->getSizeExpr()->Retain() : 0, 2675898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 26760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall DSAT->getIndexTypeCVRQualifiers(), 26777e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor DSAT->getBracketsRange())); 26781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2679c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 26807e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return cast<ArrayType>(getVariableArrayType(NewEltTy, 2681bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman VAT->getSizeExpr() ? 26820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getSizeExpr()->Retain() : 0, 2683c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 26840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall VAT->getIndexTypeCVRQualifiers(), 26857e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor VAT->getBracketsRange())); 268677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 268777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 268877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 2689e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 2690e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 2691e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 2692e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 2693e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 2694e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 2695e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 2696c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 2697c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 2698c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 2699c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 2700c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 2701c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 27021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2703c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 2704e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 2705e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 27060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return getQualifiedType(PtrTy, PrettyArrayType->getIndexTypeQualifiers()); 2707e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 2708e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 27095e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas GregorQualType ASTContext::getBaseElementType(QualType QT) { 27100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall QualifierCollector Qs; 27110237941e0beb0c929934b66ad29443b484d987feBenjamin Kramer while (const ArrayType *AT = getAsArrayType(QualType(Qs.strip(QT), 0))) 27120237941e0beb0c929934b66ad29443b484d987feBenjamin Kramer QT = AT->getElementType(); 27130237941e0beb0c929934b66ad29443b484d987feBenjamin Kramer return Qs.apply(QT); 27145e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor} 27155e03f9ea8174ae588c5e69ec6b5ef4c68f8fd766Douglas Gregor 2716fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders CarlssonQualType ASTContext::getBaseElementType(const ArrayType *AT) { 2717fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson QualType ElemTy = AT->getElementType(); 27181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2719fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson if (const ArrayType *AT = getAsArrayType(ElemTy)) 2720fbbce49c116aa8c8c7c0707cb6048b55f70461a9Anders Carlsson return getBaseElementType(AT); 27211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27226183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 27236183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 27246183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 27250de78998e7bda473b408437053e48661b510d453Fariborz Jahanian/// getConstantArrayElementCount - Returns number of constant array elements. 27261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpuint64_t 27270de78998e7bda473b408437053e48661b510d453Fariborz JahanianASTContext::getConstantArrayElementCount(const ConstantArrayType *CA) const { 27280de78998e7bda473b408437053e48661b510d453Fariborz Jahanian uint64_t ElementCount = 1; 27290de78998e7bda473b408437053e48661b510d453Fariborz Jahanian do { 27300de78998e7bda473b408437053e48661b510d453Fariborz Jahanian ElementCount *= CA->getSize().getZExtValue(); 27310de78998e7bda473b408437053e48661b510d453Fariborz Jahanian CA = dyn_cast<ConstantArrayType>(CA->getElementType()); 27320de78998e7bda473b408437053e48661b510d453Fariborz Jahanian } while (CA); 27330de78998e7bda473b408437053e48661b510d453Fariborz Jahanian return ElementCount; 27340de78998e7bda473b408437053e48661b510d453Fariborz Jahanian} 27350de78998e7bda473b408437053e48661b510d453Fariborz Jahanian 27365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 27375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 2738a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 2739183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) 27405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 2741a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 2742183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall assert(T->getAs<BuiltinType>() && "getFloatingRank(): not a floating type"); 2743183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall switch (T->getAs<BuiltinType>()->getKind()) { 2744a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 27455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 27465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 27475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 27485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 27505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 27511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 27521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// point or a complex type (based on typeDomain/typeSize). 2753716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 2754716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 27551361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 27561361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 27571361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 27581361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 27591361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 2760716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 2761f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 2762f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 2763f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 2764f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 2765f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 27661361b11066239ea15764a2a844405352d87296b3Chris Lattner 27671361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 27681361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 27691361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 27701361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 27711361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 27721361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 27735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 27745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 27755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 27767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 27777cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 27787cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 27791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 2780a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2781a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 2782a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 27831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2784a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 2785fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 2786a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 2787fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 2788fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 27895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 27905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2791f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2792f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 2793f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 2794f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 2795467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(T->isCanonicalUnqualified() && "T should be canonicalized"); 2796f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 2797842aef8d942a880eeb9535d40de31a86838264cbJohn McCall T = ET->getDecl()->getPromotionType().getTypePtr(); 2798f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2799a34267595534a72703290153a6f7e3da1adcec59Eli Friedman if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2800a34267595534a72703290153a6f7e3da1adcec59Eli Friedman T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2801a34267595534a72703290153a6f7e3da1adcec59Eli Friedman 2802f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2803f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2804f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2805f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2806f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2807f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2808f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 28097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 28107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2811f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 28127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 28137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 28147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 28157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2816f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 28177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 28187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2819f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 28207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 28217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2822f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 28237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 28247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2825f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 28267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 28277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2828f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 28292df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 28302df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 28312df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2832f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2833f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2834f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 283504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \brief Whether this is a promotable bitfield reference according 283604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// to C99 6.3.1.1p2, bullet 2 (and GCC extensions). 283704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// 283804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// \returns the type this bit-field will promote to, or NULL if no 283904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman/// promotion occurs. 284004e8357f6801e9ff52673e7e899a67bbabf9de93Eli FriedmanQualType ASTContext::isPromotableBitField(Expr *E) { 2841ceafbdeb93ecf323cca74e660bf54504c86f3b71Douglas Gregor if (E->isTypeDependent() || E->isValueDependent()) 2842ceafbdeb93ecf323cca74e660bf54504c86f3b71Douglas Gregor return QualType(); 2843ceafbdeb93ecf323cca74e660bf54504c86f3b71Douglas Gregor 284404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman FieldDecl *Field = E->getBitField(); 284504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (!Field) 284604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 284704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 284804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman QualType FT = Field->getType(); 284904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 285004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman llvm::APSInt BitWidthAP = Field->getBitWidth()->EvaluateAsInt(*this); 285104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t BitWidth = BitWidthAP.getZExtValue(); 285204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 285304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // GCC extension compatibility: if the bit-field size is less than or equal 285404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // to the size of int, it gets promoted no matter what its type is. 285504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // For instance, unsigned long bf : 4 gets promoted to signed int. 285604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth < IntSize) 285704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return IntTy; 285804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 285904e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman if (BitWidth == IntSize) 286004e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return FT->isSignedIntegerType() ? IntTy : UnsignedIntTy; 286104e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 286204e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // Types bigger than int are not subject to promotions, and therefore act 286304e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // like the base type. 286404e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // FIXME: This doesn't quite match what gcc does, but what gcc does here 286504e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman // is ridiculous. 286604e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman return QualType(); 286704e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman} 286804e8357f6801e9ff52673e7e899a67bbabf9de93Eli Friedman 2869a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// getPromotedIntegerType - Returns the type that Promotable will 2870a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// promote to: C99 6.3.1.1p2, assuming that Promotable is a promotable 2871a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman/// integer type. 2872a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType ASTContext::getPromotedIntegerType(QualType Promotable) { 2873a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(!Promotable.isNull()); 2874a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isPromotableIntegerType()); 2875842aef8d942a880eeb9535d40de31a86838264cbJohn McCall if (const EnumType *ET = Promotable->getAs<EnumType>()) 2876842aef8d942a880eeb9535d40de31a86838264cbJohn McCall return ET->getDecl()->getPromotionType(); 2877a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (Promotable->isSignedIntegerType()) 2878a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return IntTy; 2879a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t PromotableSize = getTypeSize(Promotable); 2880a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman uint64_t IntSize = getTypeSize(IntTy); 2881a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize); 2882a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return (PromotableSize != IntSize) ? IntTy : UnsignedIntTy; 2883a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 2884a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 28851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// getIntegerTypeOrder - Returns the highest ranked integer type: 28867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 28871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// LHS < RHS, return -1. 28887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2889f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2890f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 28917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 28921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2893f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2894f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 28951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28967cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 28977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 28981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 29007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 29017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 29027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 29031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29047cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 29057cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 29067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 29077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 29087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 29091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 29117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 29121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 29137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 29147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 29157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 29167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 29177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 29187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 29191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 29217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 29221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // powers of two larger than each other, this is always safe. 29237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 29245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 292571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 292679cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlssonstatic RecordDecl * 292779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders CarlssonCreateRecordDecl(ASTContext &Ctx, RecordDecl::TagKind TK, DeclContext *DC, 292879cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson SourceLocation L, IdentifierInfo *Id) { 292979cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson if (Ctx.getLangOptions().CPlusPlus) 293079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson return CXXRecordDecl::Create(Ctx, TK, DC, L, Id); 293179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson else 293279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson return RecordDecl::Create(Ctx, TK, DC, L, Id); 293379cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson} 293479cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson 29351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// getCFConstantStringType - Return the type used for constant CFStrings. 293671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 293771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 29381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CFConstantStringTypeDecl = 2939465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara CreateRecordDecl(*this, TTK_Struct, TUDecl, SourceLocation(), 294079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("NSConstantString")); 29415cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall CFConstantStringTypeDecl->startDefinition(); 294279cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson 2943f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 29441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 294571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 29460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[0] = getPointerType(IntTy.withConst()); 2947f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2948f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 294971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 29500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall FieldTypes[2] = getPointerType(CharTy.withConst()); 295171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 29521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[3] = LongTy; 29531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 295444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 295544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 29561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 295744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 2958a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 29591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 29604afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 29612888b65aae768f54062505330df7be230a0510c7John McCall Field->setAccess(AS_public); 296217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis CFConstantStringTypeDecl->addDecl(Field); 296344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 296444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2965838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor CFConstantStringTypeDecl->completeDefinition(); 296671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 29671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 296871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 29698467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2970b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2971319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 29726217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 2973319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2974319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2975319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2976319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 29772bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian// getNSConstantStringType - Return the type used for constant NSStrings. 29782bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz JahanianQualType ASTContext::getNSConstantStringType() { 29792bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian if (!NSConstantStringTypeDecl) { 29802bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian NSConstantStringTypeDecl = 2981465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara CreateRecordDecl(*this, TTK_Struct, TUDecl, SourceLocation(), 29822bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian &Idents.get("__builtin_NSString")); 29832bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian NSConstantStringTypeDecl->startDefinition(); 29842bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 29852bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian QualType FieldTypes[3]; 29862bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 29872bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian // const int *isa; 29882bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian FieldTypes[0] = getPointerType(IntTy.withConst()); 29892bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian // const char *str; 29902bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian FieldTypes[1] = getPointerType(CharTy.withConst()); 29912bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian // unsigned int length; 29922bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian FieldTypes[2] = UnsignedIntTy; 29932bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 29942bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian // Create fields 29952bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian for (unsigned i = 0; i < 3; ++i) { 29962bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian FieldDecl *Field = FieldDecl::Create(*this, NSConstantStringTypeDecl, 29972bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian SourceLocation(), 0, 29982bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian FieldTypes[i], /*TInfo=*/0, 29992bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian /*BitWidth=*/0, 30002bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian /*Mutable=*/false); 30012888b65aae768f54062505330df7be230a0510c7John McCall Field->setAccess(AS_public); 30022bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian NSConstantStringTypeDecl->addDecl(Field); 30032bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian } 30042bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 30052bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian NSConstantStringTypeDecl->completeDefinition(); 30062bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian } 30072bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 30082bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian return getTagDeclType(NSConstantStringTypeDecl); 30092bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian} 30102bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 30112bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanianvoid ASTContext::setNSConstantStringType(QualType T) { 30122bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian const RecordType *Rec = T->getAs<RecordType>(); 30132bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian assert(Rec && "Invalid NSConstantStringType"); 30142bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian NSConstantStringTypeDecl = Rec->getDecl(); 30152bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian} 30162bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 30171eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType ASTContext::getObjCFastEnumerationStateType() { 3018bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 301944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 3020465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara CreateRecordDecl(*this, TTK_Struct, TUDecl, SourceLocation(), 302179cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__objcFastEnumerationState")); 30225cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall ObjCFastEnumerationStateTypeDecl->startDefinition(); 30231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3024bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 3025bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 3026de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff getPointerType(ObjCIdTypedefType), 3027bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 3028bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 3029bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 3030bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 30311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 303244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 30331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldDecl *Field = FieldDecl::Create(*this, 30341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCFastEnumerationStateTypeDecl, 30351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation(), 0, 3036a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 30371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /*BitWidth=*/0, 30384afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 30392888b65aae768f54062505330df7be230a0510c7John McCall Field->setAccess(AS_public); 304017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCFastEnumerationStateTypeDecl->addDecl(Field); 304144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 304238c9ab880b843a128f8d895d3e2e24877e178788Fariborz Jahanian if (getLangOptions().CPlusPlus) 304381148e9c24687564b3dd13bcb5e5e9f5100c0c95Fariborz Jahanian if (CXXRecordDecl *CXXRD = 304481148e9c24687564b3dd13bcb5e5e9f5100c0c95Fariborz Jahanian dyn_cast<CXXRecordDecl>(ObjCFastEnumerationStateTypeDecl)) 304538c9ab880b843a128f8d895d3e2e24877e178788Fariborz Jahanian CXXRD->setEmpty(false); 30461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3047838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(); 3048bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 30491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3050bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 3051bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 3052bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 3053adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike StumpQualType ASTContext::getBlockDescriptorType() { 3054adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump if (BlockDescriptorType) 3055adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 3056adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3057adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 3058adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Needs the FlagAppleBlock bit. 3059465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara T = CreateRecordDecl(*this, TTK_Struct, TUDecl, SourceLocation(), 306079cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__block_descriptor")); 30615cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 3062adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3063adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 3064adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 3065adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump UnsignedLongTy, 3066adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3067adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3068adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 3069adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "reserved", 3070083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size" 3071adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3072adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3073adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 2; ++i) { 3074adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump FieldDecl *Field = FieldDecl::Create(*this, 3075adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T, 3076adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump SourceLocation(), 3077adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 3078a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3079adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*BitWidth=*/0, 3080adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump /*Mutable=*/false); 30812888b65aae768f54062505330df7be230a0510c7John McCall Field->setAccess(AS_public); 3082adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 3083adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 3084adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3085838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3086adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3087adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = T; 3088adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3089adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump return getTagDeclType(BlockDescriptorType); 3090adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3091adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3092adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stumpvoid ASTContext::setBlockDescriptorType(QualType T) { 3093adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const RecordType *Rec = T->getAs<RecordType>(); 3094adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump assert(Rec && "Invalid BlockDescriptorType"); 3095adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump BlockDescriptorType = Rec->getDecl(); 3096adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3097adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3098083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike StumpQualType ASTContext::getBlockDescriptorExtendedType() { 3099083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump if (BlockDescriptorExtendedType) 3100083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 3101083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3102083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump RecordDecl *T; 3103083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump // FIXME: Needs the FlagAppleBlock bit. 3104465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara T = CreateRecordDecl(*this, TTK_Struct, TUDecl, SourceLocation(), 310579cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get("__block_descriptor_withcopydispose")); 31065cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 3107083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3108083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump QualType FieldTypes[] = { 3109083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 3110083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump UnsignedLongTy, 3111083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy), 3112083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(VoidPtrTy) 3113083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 3114083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3115083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const char *FieldNames[] = { 3116083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "reserved", 3117083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "Size", 3118083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "CopyFuncPtr", 3119083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump "DestroyFuncPtr" 3120083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump }; 3121083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3122083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump for (size_t i = 0; i < 4; ++i) { 3123083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump FieldDecl *Field = FieldDecl::Create(*this, 3124083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T, 3125083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump SourceLocation(), 3126083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump &Idents.get(FieldNames[i]), 3127a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3128083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*BitWidth=*/0, 3129083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump /*Mutable=*/false); 31302888b65aae768f54062505330df7be230a0510c7John McCall Field->setAccess(AS_public); 3131083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump T->addDecl(Field); 3132083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump } 3133083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3134838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3135083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3136083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = T; 3137083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3138083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump return getTagDeclType(BlockDescriptorExtendedType); 3139083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 3140083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3141083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stumpvoid ASTContext::setBlockDescriptorExtendedType(QualType T) { 3142083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump const RecordType *Rec = T->getAs<RecordType>(); 3143083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump assert(Rec && "Invalid BlockDescriptorType"); 3144083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump BlockDescriptorExtendedType = Rec->getDecl(); 3145083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump} 3146083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump 3147af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stumpbool ASTContext::BlockRequiresCopying(QualType Ty) { 3148af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isBlockPointerType()) 3149af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3150af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (isObjCNSObjectType(Ty)) 3151af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3152af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (Ty->isObjCObjectPointerType()) 3153af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return true; 3154af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return false; 3155af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump} 3156af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3157af7b44d847d3e44c43346d508b2e55a6254b6e9dMike StumpQualType ASTContext::BuildByRefType(const char *DeclName, QualType Ty) { 3158af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // type = struct __Block_byref_1_X { 3159ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // void *__isa; 3160af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // struct __Block_byref_1_X *__forwarding; 3161ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __flags; 3162ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // unsigned int __size; 316338e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__copy_helper; // as needed 316438e1627e895cd276186ebf177f75ba5d229c3fd7Mike Stump // void *__destroy_help // as needed 3165af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // int X; 3166ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump // } * 3167ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3168af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump bool HasCopyAndDispose = BlockRequiresCopying(Ty); 3169af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3170af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump // FIXME: Move up 3171f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 3172f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__Block_byref_" << 3173f5942a44880be26878592eb052b737579349411eBenjamin Kramer ++UniqueBlockByRefTypeID << '_' << DeclName; 3174af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump RecordDecl *T; 3175465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara T = CreateRecordDecl(*this, TTK_Struct, TUDecl, SourceLocation(), 317679cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get(Name.str())); 3177af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->startDefinition(); 3178af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType Int32Ty = IntTy; 3179af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump assert(getIntWidth(IntTy) == 32 && "non-32bit int not supported"); 3180af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump QualType FieldTypes[] = { 3181af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3182af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(getTagDeclType(T)), 3183af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 3184af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Int32Ty, 3185af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3186af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump getPointerType(VoidPtrTy), 3187af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump Ty 3188af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 3189af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3190af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump const char *FieldNames[] = { 3191af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__isa", 3192af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__forwarding", 3193af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__flags", 3194af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__size", 3195af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__copy_helper", 3196af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump "__destroy_helper", 3197af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump DeclName, 3198af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump }; 3199af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3200af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump for (size_t i = 0; i < 7; ++i) { 3201af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump if (!HasCopyAndDispose && i >=4 && i <= 5) 3202af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump continue; 3203af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3204af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump &Idents.get(FieldNames[i]), 3205a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3206af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump /*BitWidth=*/0, /*Mutable=*/false); 32072888b65aae768f54062505330df7be230a0510c7John McCall Field->setAccess(AS_public); 3208af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump T->addDecl(Field); 3209af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump } 3210af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3211838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3212af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump 3213af7b44d847d3e44c43346d508b2e55a6254b6e9dMike Stump return getPointerType(getTagDeclType(T)); 3214ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump} 3215ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3216ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3217ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike StumpQualType ASTContext::getBlockParmType( 3218083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump bool BlockHasCopyDispose, 3219ea1471e0e967548c596a71469702f8846dbaf3c0John McCall llvm::SmallVectorImpl<const Expr *> &Layout) { 3220ea1471e0e967548c596a71469702f8846dbaf3c0John McCall 3221adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump // FIXME: Move up 3222f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::SmallString<36> Name; 3223f5942a44880be26878592eb052b737579349411eBenjamin Kramer llvm::raw_svector_ostream(Name) << "__block_literal_" 3224f5942a44880be26878592eb052b737579349411eBenjamin Kramer << ++UniqueBlockParmTypeID; 3225adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump RecordDecl *T; 3226465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara T = CreateRecordDecl(*this, TTK_Struct, TUDecl, SourceLocation(), 322779cbc7dd2aacd85a28f469b5dc73c4ea296e7072Anders Carlsson &Idents.get(Name.str())); 32285cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall T->startDefinition(); 3229adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump QualType FieldTypes[] = { 3230adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 3231adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 3232adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump IntTy, 3233adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump getPointerType(VoidPtrTy), 3234083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump (BlockHasCopyDispose ? 3235083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorExtendedType()) : 3236083c25eea14bb4cc4ecc3ec763c60e2e609e22bdMike Stump getPointerType(getBlockDescriptorType())) 3237adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3238adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3239adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump const char *FieldNames[] = { 3240adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__isa", 3241adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__flags", 3242adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__reserved", 3243adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__FuncPtr", 3244adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump "__descriptor" 3245adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump }; 3246adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3247adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump for (size_t i = 0; i < 5; ++i) { 3248ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3249adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump &Idents.get(FieldNames[i]), 3250a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FieldTypes[i], /*TInfo=*/0, 3251ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 32522888b65aae768f54062505330df7be230a0510c7John McCall Field->setAccess(AS_public); 3253ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump T->addDecl(Field); 3254ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3255ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3256ea1471e0e967548c596a71469702f8846dbaf3c0John McCall for (unsigned i = 0; i < Layout.size(); ++i) { 3257ea1471e0e967548c596a71469702f8846dbaf3c0John McCall const Expr *E = Layout[i]; 3258ea1471e0e967548c596a71469702f8846dbaf3c0John McCall 3259ea1471e0e967548c596a71469702f8846dbaf3c0John McCall QualType FieldType = E->getType(); 3260ea1471e0e967548c596a71469702f8846dbaf3c0John McCall IdentifierInfo *FieldName = 0; 3261ea1471e0e967548c596a71469702f8846dbaf3c0John McCall if (isa<CXXThisExpr>(E)) { 3262ea1471e0e967548c596a71469702f8846dbaf3c0John McCall FieldName = &Idents.get("this"); 3263ea1471e0e967548c596a71469702f8846dbaf3c0John McCall } else if (const BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(E)) { 3264ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump const ValueDecl *D = BDRE->getDecl(); 3265ea1471e0e967548c596a71469702f8846dbaf3c0John McCall FieldName = D->getIdentifier(); 3266ea1471e0e967548c596a71469702f8846dbaf3c0John McCall if (BDRE->isByRef()) 3267ea1471e0e967548c596a71469702f8846dbaf3c0John McCall FieldType = BuildByRefType(D->getNameAsCString(), FieldType); 3268ea1471e0e967548c596a71469702f8846dbaf3c0John McCall } else { 3269ea1471e0e967548c596a71469702f8846dbaf3c0John McCall // Padding. 3270ea1471e0e967548c596a71469702f8846dbaf3c0John McCall assert(isa<ConstantArrayType>(FieldType) && 3271ea1471e0e967548c596a71469702f8846dbaf3c0John McCall isa<DeclRefExpr>(E) && 3272ea1471e0e967548c596a71469702f8846dbaf3c0John McCall !cast<DeclRefExpr>(E)->getDecl()->getDeclName() && 3273ea1471e0e967548c596a71469702f8846dbaf3c0John McCall "doesn't match characteristics of padding decl"); 3274ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump } 3275ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3276ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump FieldDecl *Field = FieldDecl::Create(*this, T, SourceLocation(), 3277ea1471e0e967548c596a71469702f8846dbaf3c0John McCall FieldName, FieldType, /*TInfo=*/0, 3278ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump /*BitWidth=*/0, /*Mutable=*/false); 32792888b65aae768f54062505330df7be230a0510c7John McCall Field->setAccess(AS_public); 3280adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump T->addDecl(Field); 3281adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump } 3282adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3283838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor T->completeDefinition(); 3284ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump 3285ea26cb522e88fc86b0d1cae61dcefcfe4cc20231Mike Stump return getPointerType(getTagDeclType(T)); 3286adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump} 3287adaaad3715c9c26cdcfdfe3401a13d7b4423ddcfMike Stump 3288319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 32896217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *Rec = T->getAs<RecordType>(); 3290319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 3291319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 3292319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 3293319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 3294e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 3295e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 32962d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 3297e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 3298bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 3299bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 33001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 330185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 330285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 330385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 3304a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 330533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 3306aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen DyckCharUnits ASTContext::getObjCEncodingTypeSize(QualType type) { 3307199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits sz = getTypeSizeInChars(type); 33081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 330933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 33102ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (sz.isPositive() && type->isIntegralOrEnumerationType()) 3311199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck sz = std::max(sz, getTypeSizeInChars(IntTy)); 331233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 331333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 3314199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck sz = getTypeSizeInChars(VoidPtrTy); 3315aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck return sz; 3316199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck} 3317199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck 3318199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyckstatic inline 3319199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyckstd::string charUnitsToString(const CharUnits &CU) { 3320199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck return llvm::itostr(CU.getQuantity()); 332133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 332233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 33236f46c2653c1545cc3fef0c0df996d18160160ce8Fariborz Jahanian/// getObjCEncodingForBlockDecl - Return the encoded type for this block 33245e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall/// declaration. 33255e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnallvoid ASTContext::getObjCEncodingForBlock(const BlockExpr *Expr, 33265e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall std::string& S) { 33275e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall const BlockDecl *Decl = Expr->getBlockDecl(); 33285e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType BlockTy = 33295e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall Expr->getType()->getAs<BlockPointerType>()->getPointeeType(); 33305e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Encode result type. 3331c71a4915ca216847599d03cab4ed1c5086b0eb43John McCall getObjCEncodingForType(BlockTy->getAs<FunctionType>()->getResultType(), S); 33325e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Compute size of all parameters. 33335e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Start with computing size of a pointer in number of bytes. 33345e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // FIXME: There might(should) be a better way of doing this computation! 33355e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall SourceLocation Loc; 3336199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); 3337199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits ParmOffset = PtrSize; 33386f46c2653c1545cc3fef0c0df996d18160160ce8Fariborz Jahanian for (BlockDecl::param_const_iterator PI = Decl->param_begin(), 33395e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall E = Decl->param_end(); PI != E; ++PI) { 33405e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType PType = (*PI)->getType(); 3341aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck CharUnits sz = getObjCEncodingTypeSize(PType); 3342199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck assert (sz.isPositive() && "BlockExpr - Incomplete param type"); 33435e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset += sz; 33445e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } 33455e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Size of the argument frame 3346199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 33475e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Block pointer and offset. 33485e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall S += "@?0"; 33495e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset = PtrSize; 33505e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall 33515e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Argument types. 33525e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmOffset = PtrSize; 33535e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall for (BlockDecl::param_const_iterator PI = Decl->param_begin(), E = 33545e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall Decl->param_end(); PI != E; ++PI) { 33555e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall ParmVarDecl *PVDecl = *PI; 33565e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall QualType PType = PVDecl->getOriginalType(); 33575e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall if (const ArrayType *AT = 33585e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 33595e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // Use array's original type only if it has known number of 33605e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall // elements. 33615e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall if (!isa<ConstantArrayType>(AT)) 33625e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall PType = PVDecl->getType(); 33635e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } else if (PType->isFunctionType()) 33645e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall PType = PVDecl->getType(); 33655e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall getObjCEncodingForType(PType, S); 3366199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 3367aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck ParmOffset += getObjCEncodingTypeSize(PType); 33685e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall } 33695e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall} 33705e530af5d51572a0ed5dbe50da54bd333840c63dDavid Chisnall 3371a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 337233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 33731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 3374e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3375c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3376ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 3377a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 337833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 33790d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 338033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 338133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 338233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 338333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 3384199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); 338533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 338633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 3387199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits ParmOffset = 2 * PtrSize; 338889951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 33897732cc9c0fdc97a2f8cce4e5933d8103213d1aefFariborz Jahanian E = Decl->sel_param_end(); PI != E; ++PI) { 339089951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 3391aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck CharUnits sz = getObjCEncodingTypeSize(PType); 3392199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck assert (sz.isPositive() && 3393199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck "getObjCEncodingForMethodDecl - Incomplete param type"); 339433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 339533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 3396199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 339733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 3398199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(PtrSize); 33991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 340033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 340133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 340289951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 34037732cc9c0fdc97a2f8cce4e5933d8103213d1aefFariborz Jahanian E = Decl->sel_param_end(); PI != E; ++PI) { 340489951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 34051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType PType = PVDecl->getOriginalType(); 34064306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 3407ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 3408ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 3409ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 3410bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 3411ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3412ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 3413ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 3414ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 341533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 34164306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 34170d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 3418199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck S += charUnitsToString(ParmOffset); 3419aa8741a1db98eef05f09b1200dba94aa5dc3bc3dKen Dyck ParmOffset += getObjCEncodingTypeSize(PType); 342033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 342133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 342233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 3423c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 342483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 3425c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 3426c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 34271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Property attributes are stored as a comma-delimited C string. The simple 34281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// attributes readonly and bycopy are encoded as single characters. The 34291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parametrized attributes, getter=name, setter=name, and ivar=name, are 34301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// encoded as single characters, followed by an identifier. Property types 34311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// are also encoded as a parametrized attribute. The characters used to encode 343283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 343383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 343483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 343583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 343683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 343783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 343883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 343983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 344083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 344183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 344283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 344383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 344483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 344583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 344683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 344783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 34481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 3449c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 3450e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 3451c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 3452c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 3453c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 3454c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3455c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 3456c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 34571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCCategoryImplDecl *CID = 3458c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 3459c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 346017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = CID->propimpl_begin(), e = CID->propimpl_end(); 3461653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3462c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3463c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3464c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3465c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3466c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3467c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3468c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3469c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3470c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3471c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 347261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 3473c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 347417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis i = OID->propimpl_begin(), e = OID->propimpl_end(); 3475653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 3476c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 3477c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 3478c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 3479c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 3480c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3481c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 3482c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3483c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 34841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3485c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3486c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3487c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3488c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 3489c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 3490c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3491c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 3492090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 3493090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 34941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 3495090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 3496090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 3497c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3498c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 3499c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 3500c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 3501c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 3502c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 3503c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 35041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump case ObjCPropertyDecl::Retain: S += ",&"; break; 3505c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3506c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3507c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3508c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 3509c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 3510c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 3511c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 3512c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3513090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 3514090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 35151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3516c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 3517c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 3518077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 3519c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3520c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3521c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 3522c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 3523077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 3524c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3525c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3526c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 3527c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 3528c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 352939f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 3530c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 3531c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3532c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 3533c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 3534c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 3535a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 35361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Another legacy compatibility encoding: 32-bit longs are encoded as 35371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 'l' or 'L' , but not always. For typedefs, we need to use 3538a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 3539a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 3540a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 35418e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(PointeeTy.getTypePtr())) { 3542183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const BuiltinType *BT = PointeeTy->getAs<BuiltinType>()) { 3543c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 3544c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3545a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 35461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else 3547c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 3548c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 3549a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 3550a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3551a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3552a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 3553a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 35547d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 3555153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 355682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 355782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 355882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 355982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 35601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(T, S, true, true, Field, 35615b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 356282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 356382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 356464fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnallstatic char ObjCEncodingForPrimitiveKind(const ASTContext *C, QualType T) { 356564fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall switch (T->getAs<BuiltinType>()->getKind()) { 356664fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall default: assert(0 && "Unhandled builtin type kind"); 356764fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::Void: return 'v'; 356864fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::Bool: return 'B'; 356964fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::Char_U: 357064fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::UChar: return 'C'; 357164fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::UShort: return 'S'; 357264fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::UInt: return 'I'; 357364fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::ULong: 357464fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall return 357564fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall (const_cast<ASTContext *>(C))->getIntWidth(T) == 32 ? 'L' : 'Q'; 357664fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::UInt128: return 'T'; 357764fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::ULongLong: return 'Q'; 357864fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::Char_S: 357964fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::SChar: return 'c'; 358064fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::Short: return 's'; 358124da7093a84e4eb92731e0565ab655697b2ed08fJohn McCall case BuiltinType::WChar: 358264fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::Int: return 'i'; 358364fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::Long: 358464fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall return 358564fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall (const_cast<ASTContext *>(C))->getIntWidth(T) == 32 ? 'l' : 'q'; 358664fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::LongLong: return 'q'; 358764fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::Int128: return 't'; 358864fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::Float: return 'f'; 358964fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::Double: return 'd'; 359064fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall case BuiltinType::LongDouble: return 'd'; 359164fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall } 359264fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall} 359364fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall 35941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void EncodeBitField(const ASTContext *Context, std::string& S, 359564fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall QualType T, const FieldDecl *FD) { 35968b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 35978b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 35988b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 35998b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 360064fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // The NeXT runtime encodes bit fields as b followed by the number of bits. 360164fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // The GNU runtime requires more information; bitfields are encoded as b, 360264fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // then the offset (in bits) of the first element, then the type of the 360364fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // bitfield, then the size in bits. For example, in this structure: 360464fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // 360564fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // struct 360664fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // { 360764fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // int integer; 360864fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // int flags:2; 360964fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // }; 361064fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // On a 32-bit system, the encoding for flags would be b2 for the NeXT 361164fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // runtime, but b32i2 for the GNU runtime. The reason for this extra 361264fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // information is not especially sensible, but we're stuck with it for 361364fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // compatibility with GCC, although providing it breaks anything that 361464fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // actually uses runtime introspection and wants to work on both runtimes... 361564fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall if (!Ctx->getLangOptions().NeXTRuntime) { 361664fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall const RecordDecl *RD = FD->getParent(); 361764fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall const ASTRecordLayout &RL = Ctx->getASTRecordLayout(RD); 361864fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // FIXME: This same linear search is also used in ExprConstant - it might 361964fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // be better if the FieldDecl stored its offset. We'd be increasing the 362064fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall // size of the object slightly, but saving some time every time it is used. 362164fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall unsigned i = 0; 362264fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall for (RecordDecl::field_iterator Field = RD->field_begin(), 362364fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall FieldEnd = RD->field_end(); 362464fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall Field != FieldEnd; (void)++Field, ++i) { 362564fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall if (*Field == FD) 362664fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall break; 362764fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall } 362864fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall S += llvm::utostr(RL.getFieldOffset(i)); 362964fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall S += ObjCEncodingForPrimitiveKind(Context, T); 363064fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall } 363164fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 36328b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 36338b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 36348b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 363501eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar// FIXME: Use SmallString for accumulating string. 363682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 363782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 363882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 3639153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 3640090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 36416ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 364264fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall if (T->getAs<BuiltinType>()) { 3643ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (FD && FD->isBitField()) 364464fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall return EncodeBitField(this, S, T, FD); 364564fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall S += ObjCEncodingForPrimitiveKind(this, T); 3646ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3647ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 36481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3649183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ComplexType *CT = T->getAs<ComplexType>()) { 3650c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 36511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 3652c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 3653ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3654ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 365560bce3ef20a4c9684e3825cdd739fefb9810327dFariborz Jahanian 3656aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian // encoding for pointer or r3eference types. 3657aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian QualType PointeeTy; 36586217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const PointerType *PT = T->getAs<PointerType>()) { 36598d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian if (PT->isObjCSelType()) { 36608d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian S += ':'; 36618d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian return; 36628d2c0a9814e56c2b22e22d1045181c735aef62fdFariborz Jahanian } 3663aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian PointeeTy = PT->getPointeeType(); 3664aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian } 3665aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian else if (const ReferenceType *RT = T->getAs<ReferenceType>()) 3666aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian PointeeTy = RT->getPointeeType(); 3667aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian if (!PointeeTy.isNull()) { 3668a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 3669a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 3670a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 3671a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 36721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Also, do not emit the 'r' for anything but the outermost type! 36738e1fab243ab8023b7ee3899745386b3b3a4258f8Mike Stump if (isa<TypedefType>(T.getTypePtr())) { 3674a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 3675a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3676a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3677a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 36789fdbab3cbc2fc04bcaf5768023d83707f3151144Mike Stump } else if (OutermostType) { 3679a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 36806217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek while (P->getAs<PointerType>()) 36816217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek P = P->getAs<PointerType>()->getPointeeType(); 3682a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 3683a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 3684a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 3685a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3686a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 3687a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 3688a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 3689a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 3690a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 36910237941e0beb0c929934b66ad29443b484d987feBenjamin Kramer if (llvm::StringRef(S).endswith("nr")) 36920237941e0beb0c929934b66ad29443b484d987feBenjamin Kramer S.replace(S.end()-2, S.end(), "rn"); 3693a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 36941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 369585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 369685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 369785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 3698e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 369985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 370085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 370185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 37026217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek } else if (const RecordType *RTy = PointeeTy->getAs<RecordType>()) { 37039533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_class *" to "#". 37049533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { 37059533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '#'; 37069533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 37079533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 37089533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // GCC binary compat: Need to convert "struct objc_object *" to "@". 37099533a7fdb8397421f3be52e879442460a87389f6Steve Naroff if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { 37109533a7fdb8397421f3be52e879442460a87389f6Steve Naroff S += '@'; 37119533a7fdb8397421f3be52e879442460a87389f6Steve Naroff return; 37129533a7fdb8397421f3be52e879442460a87389f6Steve Naroff } 37139533a7fdb8397421f3be52e879442460a87389f6Steve Naroff // fall through... 371485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 371585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 3716a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 3717a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 37181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 371943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 3720ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3721ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3722aa1d76163e4b0b1cc54e222be67379f8c02e8ffaFariborz Jahanian 3723ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (const ArrayType *AT = 3724ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Ignore type qualifiers etc. 3725ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 3726559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 3727559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 3728559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 3729559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 37301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3731559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3732559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 3733559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 37341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3735559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 3736559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 3737559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 3738559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 3739559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 3740559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 3741559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 37421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(AT->getElementType(), S, 3744559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 3745559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 3746559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 3747ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3748ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3750183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (T->getAs<FunctionType>()) { 3751c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 3752ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3753ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 37541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37556217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *RTy = T->getAs<RecordType>()) { 375682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 3757d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 3758502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 3759502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 3760502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 37616fb94391dc7cb11fd4bbdb969bbab11b6b48c223Fariborz Jahanian if (ClassTemplateSpecializationDecl *Spec 37626fb94391dc7cb11fd4bbdb969bbab11b6b48c223Fariborz Jahanian = dyn_cast<ClassTemplateSpecializationDecl>(RDecl)) { 37636fb94391dc7cb11fd4bbdb969bbab11b6b48c223Fariborz Jahanian const TemplateArgumentList &TemplateArgs = Spec->getTemplateArgs(); 37646fb94391dc7cb11fd4bbdb969bbab11b6b48c223Fariborz Jahanian std::string TemplateArgsStr 37656fb94391dc7cb11fd4bbdb969bbab11b6b48c223Fariborz Jahanian = TemplateSpecializationType::PrintTemplateArgumentList( 37666fb94391dc7cb11fd4bbdb969bbab11b6b48c223Fariborz Jahanian TemplateArgs.getFlatArgumentList(), 37676fb94391dc7cb11fd4bbdb969bbab11b6b48c223Fariborz Jahanian TemplateArgs.flat_size(), 37686fb94391dc7cb11fd4bbdb969bbab11b6b48c223Fariborz Jahanian (*this).PrintingPolicy); 37696fb94391dc7cb11fd4bbdb969bbab11b6b48c223Fariborz Jahanian 37706fb94391dc7cb11fd4bbdb969bbab11b6b48c223Fariborz Jahanian S += TemplateArgsStr; 37716fb94391dc7cb11fd4bbdb969bbab11b6b48c223Fariborz Jahanian } 3772502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 3773502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 3774502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 37750d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 37767d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 377717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (RecordDecl::field_iterator Field = RDecl->field_begin(), 377817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RDecl->field_end(); 377944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 378043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 3781d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 378244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 3783d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 3784d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 37851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3786d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 378743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 37881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 378943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 3790d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 3791a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 3792a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 37931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(qt, S, false, true, 379443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 3795d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 37967d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 37976de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 3798d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 3799ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3800ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 38011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3802ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isEnumeralType()) { 38038b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 380464fd7e86c1a90d9ff78e4a0bd79f69499667a4e3David Chisnall EncodeBitField(this, S, T, FD); 38058b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 38068b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 3807ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3808ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 38091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3810ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (T->isBlockPointerType()) { 381121a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 3812ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3813ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 38141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3815c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Ignore protocol qualifiers when mangling at this level. 3816c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCObjectType *OT = T->getAs<ObjCObjectType>()) 3817c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T = OT->getBaseType(); 3818c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 38190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (const ObjCInterfaceType *OIT = T->getAs<ObjCInterfaceType>()) { 382043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 38210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ObjCInterfaceDecl *OI = OIT->getDecl(); 382243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 382343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 382443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 382543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 3826f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 382743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 3828f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 382943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 38301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 383143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 383243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 38331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 383443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 383543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 383643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 3837ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 383843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 38391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3840183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const ObjCObjectPointerType *OPT = T->getAs<ObjCObjectPointerType>()) { 384114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (OPT->isObjCIdType()) { 384214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '@'; 384314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3844ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 38451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 384627d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->isObjCClassType() || OPT->isObjCQualifiedClassType()) { 384727d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // FIXME: Consider if we need to output qualifiers for 'Class<p>'. 384827d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // Since this is a binary compatibility issue, need to consult with runtime 384927d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff // folks. Fortunately, this is a *very* obsure construct. 385014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '#'; 385114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3852ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 38531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3854ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (OPT->isObjCQualifiedIdType()) { 38551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(getObjCIdType(), S, 385614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandPointedToStructures, 385714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff ExpandStructures, FD); 385814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (FD || EncodingProperty) { 385914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Note that we do extended encoding of protocol qualifer list 386014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff // Only when doing ivar or property encoding. 386114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 386267ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 386367ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 386414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '<'; 386514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += (*I)->getNameAsString(); 386614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '>'; 386714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 386814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff S += '"'; 386914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 387014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 3871ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 38721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3873ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner QualType PointeeTy = OPT->getPointeeType(); 3874ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner if (!EncodingProperty && 3875ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner isa<TypedefType>(PointeeTy.getTypePtr())) { 3876ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // Another historical/compatibility reason. 38771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We encode the underlying type which comes out as 3878ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner // {...}; 3879ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '^'; 38801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getObjCEncodingForTypeImpl(PointeeTy, S, 38811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump false, ExpandPointedToStructures, 3882ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner NULL); 388314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return; 388414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 3885ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner 3886ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '@'; 388727d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff if (OPT->getInterfaceDecl() && (FD || EncodingProperty)) { 3888ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 388927d20a24a1b816cecbd142727d2c81af5a6a111bSteve Naroff S += OPT->getInterfaceDecl()->getIdentifier()->getName(); 389067ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 389167ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff E = OPT->qual_end(); I != E; ++I) { 3892ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '<'; 3893ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += (*I)->getNameAsString(); 3894ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '>'; 38951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3896ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner S += '"'; 3897ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 3898ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner return; 3899ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner } 39001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3901532ec7baf2d0791abc9551ef856a537711c5774aJohn McCall // gcc just blithely ignores member pointers. 3902532ec7baf2d0791abc9551ef856a537711c5774aJohn McCall // TODO: maybe there should be a mangling for these 3903532ec7baf2d0791abc9551ef856a537711c5774aJohn McCall if (T->getAs<MemberPointerType>()) 3904532ec7baf2d0791abc9551ef856a537711c5774aJohn McCall return; 3905532ec7baf2d0791abc9551ef856a537711c5774aJohn McCall 3906ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattner assert(0 && "@encode for type not implemented!"); 390785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 390885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 39091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 3910ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 3911ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 3912ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 3913ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 3914ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 3915ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 3916ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 3917ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 3918ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 3919ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 3920ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 3921ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 3922ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 3923ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 3924ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 3925ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setBuiltinVaListType(QualType T) { 3926b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 39271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3928b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 3929b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 3930b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 3931ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCIdType(QualType T) { 3932de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCIdTypedefType = T; 39337e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 39347e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 3935ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCSelType(QualType T) { 393613dcd00615de5c4279d97bdf63cd5f0a14fd9dccFariborz Jahanian ObjCSelTypedefType = T; 3937b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 3938b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 3939ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCProtoType(QualType QT) { 3940a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 3941390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 3942390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 3943ce7b38c4f1ea9c51e2f46a82e3f57456b74269d5Chris Lattnervoid ASTContext::setObjCClassType(QualType T) { 3944de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff ObjCClassTypedefType = T; 39458baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 39468baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3947a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 39481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(ObjCConstantStringType.isNull() && 39492198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 39501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3951a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 39522198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 39532198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 39540bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall/// \brief Retrieve the template name that corresponds to a non-empty 39550bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall/// lookup. 3956eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCallTemplateName ASTContext::getOverloadedTemplateName(UnresolvedSetIterator Begin, 3957eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCall UnresolvedSetIterator End) { 39580bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall unsigned size = End - Begin; 39590bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(size > 1 && "set is not overloaded!"); 39607532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 39610bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall void *memory = Allocate(sizeof(OverloadedTemplateStorage) + 39620bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall size * sizeof(FunctionTemplateDecl*)); 39630bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall OverloadedTemplateStorage *OT = new(memory) OverloadedTemplateStorage(size); 39640bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall 39650bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl **Storage = OT->getStorage(); 3966eec51cf1ba5f0e62c9cdb81b5c63babdd6e649abJohn McCall for (UnresolvedSetIterator I = Begin; I != End; ++I) { 39670bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall NamedDecl *D = *I; 39680bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall assert(isa<FunctionTemplateDecl>(D) || 39690bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall (isa<UsingShadowDecl>(D) && 39700bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))); 39710bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall *Storage++ = D; 39727532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 39737532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 39740bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall return TemplateName(OT); 39757532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 39767532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 3977d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// \brief Retrieve the template name that represents a qualified 3978d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor/// template name such as \c std::vector. 39791eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 3980d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor bool TemplateKeyword, 39810bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall TemplateDecl *Template) { 3982789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor // FIXME: Canonicalization? 3983d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor llvm::FoldingSetNodeID ID; 3984d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 39851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3986d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor void *InsertPos = 0; 3987d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateName *QTN = 39880bd6feb9e9d40fc889fd47e899985125a43dfed8John McCall QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3989d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor if (!QTN) { 3990d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 3991d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 3992d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor } 39931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3994d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor return TemplateName(QTN); 3995d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor} 3996d99cbe66403ee39c2ee58024b9582b95649a4fc5Douglas Gregor 39977532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 39987532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 39991eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 40007532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 40011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((!NNS || NNS->isDependent()) && 40023b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor "Nested name specifier must be dependent"); 40037532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 40047532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 40057532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 40067532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 40077532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 40087532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 40097532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 40107532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 40117532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 40127532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 40137532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 40147532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 40157532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 40167532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 40177532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 40187532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 40197532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 4020789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *CheckQTN = 4021789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 4022789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckQTN && "Dependent type name canonicalization broken"); 4023789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckQTN; 40247532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 40257532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 40267532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 40277532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 40287532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 40297532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 4030ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Retrieve the template name that represents a dependent 4031ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// template name such as \c MetaFun::template operator+. 4032ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorTemplateName 4033ca1bdd7c269a2390d43c040a60511edd017ee130Douglas GregorASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 4034ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor OverloadedOperatorKind Operator) { 4035ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor assert((!NNS || NNS->isDependent()) && 4036ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor "Nested name specifier must be dependent"); 4037ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 4038ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor llvm::FoldingSetNodeID ID; 4039ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateName::Profile(ID, NNS, Operator); 4040ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 4041ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor void *InsertPos = 0; 4042789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *QTN 4043789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 4044ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 4045ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (QTN) 4046ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 4047ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 4048ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 4049ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (CanonNNS == NNS) { 4050ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator); 4051ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 4052ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Operator); 4053ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Operator, Canon); 4054789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor 4055789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor DependentTemplateName *CheckQTN 4056789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor = DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 4057789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor assert(!CheckQTN && "Dependent template name canonicalization broken"); 4058789b1f640205e81b5af250693246120f1ce9d147Douglas Gregor (void)CheckQTN; 4059ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 4060ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 4061ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 4062ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return TemplateName(QTN); 4063ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor} 4064ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 4065b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 4066d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 4067d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 4068e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCallCanQualType ASTContext::getFromTargetType(unsigned Type) const { 4069b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 4070e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall case TargetInfo::NoInt: return CanQualType(); 4071b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 4072b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 4073b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 4074b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 4075b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 4076b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 4077b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 4078b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 4079b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 4080b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 4081b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 4082e27ec8ad56dbf1efb2de004b90fbbb86f740e3f1John McCall return CanQualType(); 4083b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 4084b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 4085b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 4086b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 4087b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 4088b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 4089fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 4090fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 4091fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 4092f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff/// FIXME: Move to Type. 4093fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 4094fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 4095fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 4096fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 409740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (TD->getAttr<ObjCNSObjectAttr>()) 4098fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 4099fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 41001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return false; 4101fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 4102fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 41034fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 41044fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 41054fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 41060953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualifiers::GC ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 41070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttrs = Qualifiers::GCNone; 41084fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 41094fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 4110b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 41114fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 41121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // (or pointers to them) be treated as though they were declared 4113a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 41140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GCAttrs == Qualifiers::GCNone) { 411575212ee91313bc1b6dd826d9b173541bc4016539Fariborz Jahanian if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) 41160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttrs = Qualifiers::Strong; 4117a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 41186217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek return getObjCGCAttrKind(Ty->getAs<PointerType>()->getPointeeType()); 4119a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 4120c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 4121c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 4122f49545602089be5b1f744e04326b8a566f6d8773Steve Naroff else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 41230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Qualifiers::GCNone; 41244fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 4125b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 41264fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 41274fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 41286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 41296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 41306ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 4131770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 41321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// areCompatVectorTypes - Return true if the two specified vector types are 41336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 41346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 41356ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 4136467b27b9a24bdc823218ad1ad0e37673b6cc1e83John McCall assert(LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified()); 41376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 413861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 41396ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 41406ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 41414084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 41424084c306635b70f37029dca938444e6013f08684Steve Naroff// ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. 41434084c306635b70f37029dca938444e6013f08684Steve Naroff//===----------------------------------------------------------------------===// 41444084c306635b70f37029dca938444e6013f08684Steve Naroff 41454084c306635b70f37029dca938444e6013f08684Steve Naroff/// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the 41464084c306635b70f37029dca938444e6013f08684Steve Naroff/// inheritance hierarchy of 'rProto'. 41470fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanianbool ASTContext::ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, 41480fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian ObjCProtocolDecl *rProto) { 41494084c306635b70f37029dca938444e6013f08684Steve Naroff if (lProto == rProto) 415014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return true; 41514084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCProtocolDecl::protocol_iterator PI = rProto->protocol_begin(), 41524084c306635b70f37029dca938444e6013f08684Steve Naroff E = rProto->protocol_end(); PI != E; ++PI) 41534084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lProto, *PI)) 41544084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 41554084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 41564084c306635b70f37029dca938444e6013f08684Steve Naroff} 415714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 41584084c306635b70f37029dca938444e6013f08684Steve Naroff/// QualifiedIdConformsQualifiedId - compare id<p,...> with id<p1,...> 41594084c306635b70f37029dca938444e6013f08684Steve Naroff/// return true if lhs's protocols conform to rhs's protocol; false 41604084c306635b70f37029dca938444e6013f08684Steve Naroff/// otherwise. 41614084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::QualifiedIdConformsQualifiedId(QualType lhs, QualType rhs) { 41624084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhs->isObjCQualifiedIdType() && rhs->isObjCQualifiedIdType()) 41634084c306635b70f37029dca938444e6013f08684Steve Naroff return ObjCQualifiedIdTypesAreCompatible(lhs, rhs, false); 41644084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 41654084c306635b70f37029dca938444e6013f08684Steve Naroff} 41664084c306635b70f37029dca938444e6013f08684Steve Naroff 41674084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an 41684084c306635b70f37029dca938444e6013f08684Steve Naroff/// ObjCQualifiedIDType. 41694084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::ObjCQualifiedIdTypesAreCompatible(QualType lhs, QualType rhs, 41704084c306635b70f37029dca938444e6013f08684Steve Naroff bool compare) { 41714084c306635b70f37029dca938444e6013f08684Steve Naroff // Allow id<P..> and an 'id' or void* type in all cases. 41721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isVoidPointerType() || 41734084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->isObjCIdType() || lhs->isObjCClassType()) 41744084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 41751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump else if (rhs->isVoidPointerType() || 41764084c306635b70f37029dca938444e6013f08684Steve Naroff rhs->isObjCIdType() || rhs->isObjCClassType()) 41774084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 41784084c306635b70f37029dca938444e6013f08684Steve Naroff 41794084c306635b70f37029dca938444e6013f08684Steve Naroff if (const ObjCObjectPointerType *lhsQID = lhs->getAsObjCQualifiedIdType()) { 4180183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *rhsOPT = rhs->getAs<ObjCObjectPointerType>(); 41811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41824084c306635b70f37029dca938444e6013f08684Steve Naroff if (!rhsOPT) return false; 41831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41844084c306635b70f37029dca938444e6013f08684Steve Naroff if (rhsOPT->qual_empty()) { 41851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a unqualified interface pointer "NSString*", 41864084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 41874084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 41884084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 41894084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 41904084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 41914084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 41924084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 41930fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (!rhsID->ClassImplementsProtocol(*I, true)) 41944084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 41954084c306635b70f37029dca938444e6013f08684Steve Naroff } 41964084c306635b70f37029dca938444e6013f08684Steve Naroff } 41974084c306635b70f37029dca938444e6013f08684Steve Naroff // If there are no qualifiers and no interface, we have an 'id'. 41984084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 41994084c306635b70f37029dca938444e6013f08684Steve Naroff } 42001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 42014084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 42024084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 42034084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 42044084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 4205de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff 4206de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // when comparing an id<P> on lhs with a static type on rhs, 4207de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // see if static class implements all of id's protocols, directly or 4208de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff // through its super class and categories. 42094084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsOPT->qual_begin(), 42104084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsOPT->qual_end(); J != E; ++J) { 42114084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 42124084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 42134084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 42144084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 42158f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 42168f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 4217de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 42181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // If the RHS is a qualified interface pointer "NSString<P>*", 42194084c306635b70f37029dca938444e6013f08684Steve Naroff // make sure we check the class hierarchy. 42204084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 42214084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 42224084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsQID->qual_end(); I != E; ++I) { 42234084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 42244084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 42254084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 42260fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (rhsID->ClassImplementsProtocol(*I, true)) { 42274084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 42284084c306635b70f37029dca938444e6013f08684Steve Naroff break; 42294084c306635b70f37029dca938444e6013f08684Steve Naroff } 42304084c306635b70f37029dca938444e6013f08684Steve Naroff } 42314084c306635b70f37029dca938444e6013f08684Steve Naroff } 42324084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 4233de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return false; 4234de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 42351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4236de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff return true; 4237de2e22d33afec98324a66a358dfe0951b3c7259aSteve Naroff } 42381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42394084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *rhsQID = rhs->getAsObjCQualifiedIdType(); 42404084c306635b70f37029dca938444e6013f08684Steve Naroff assert(rhsQID && "One of the LHS/RHS should be id<x>"); 42414084c306635b70f37029dca938444e6013f08684Steve Naroff 42421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ObjCObjectPointerType *lhsOPT = 42434084c306635b70f37029dca938444e6013f08684Steve Naroff lhs->getAsObjCInterfacePointerType()) { 42444084c306635b70f37029dca938444e6013f08684Steve Naroff if (lhsOPT->qual_empty()) { 42454084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 42464084c306635b70f37029dca938444e6013f08684Steve Naroff if (ObjCInterfaceDecl *lhsID = lhsOPT->getInterfaceDecl()) { 42474084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = rhsQID->qual_begin(), 42484084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); I != E; ++I) { 42494084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 42504084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 42514084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 42520fd8904c5f71a11d29f67716c3ebdf7ad1c855fbFariborz Jahanian if (lhsID->ClassImplementsProtocol(*I, true)) { 42534084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 42544084c306635b70f37029dca938444e6013f08684Steve Naroff break; 42554084c306635b70f37029dca938444e6013f08684Steve Naroff } 42564084c306635b70f37029dca938444e6013f08684Steve Naroff } 42574084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 42584084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 42594084c306635b70f37029dca938444e6013f08684Steve Naroff } 42604084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 42614084c306635b70f37029dca938444e6013f08684Steve Naroff } 42621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Both the right and left sides have qualifiers. 42634084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator I = lhsOPT->qual_begin(), 42644084c306635b70f37029dca938444e6013f08684Steve Naroff E = lhsOPT->qual_end(); I != E; ++I) { 42654084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *lhsProto = *I; 42664084c306635b70f37029dca938444e6013f08684Steve Naroff bool match = false; 42674084c306635b70f37029dca938444e6013f08684Steve Naroff 42684084c306635b70f37029dca938444e6013f08684Steve Naroff // when comparing an id<P> on lhs with a static type on rhs, 42694084c306635b70f37029dca938444e6013f08684Steve Naroff // see if static class implements all of id's protocols, directly or 42704084c306635b70f37029dca938444e6013f08684Steve Naroff // through its super class and categories. 42714084c306635b70f37029dca938444e6013f08684Steve Naroff for (ObjCObjectPointerType::qual_iterator J = rhsQID->qual_begin(), 42724084c306635b70f37029dca938444e6013f08684Steve Naroff E = rhsQID->qual_end(); J != E; ++J) { 42734084c306635b70f37029dca938444e6013f08684Steve Naroff ObjCProtocolDecl *rhsProto = *J; 42744084c306635b70f37029dca938444e6013f08684Steve Naroff if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 42754084c306635b70f37029dca938444e6013f08684Steve Naroff (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 42764084c306635b70f37029dca938444e6013f08684Steve Naroff match = true; 42774084c306635b70f37029dca938444e6013f08684Steve Naroff break; 42784084c306635b70f37029dca938444e6013f08684Steve Naroff } 42794084c306635b70f37029dca938444e6013f08684Steve Naroff } 42804084c306635b70f37029dca938444e6013f08684Steve Naroff if (!match) 42814084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 42824084c306635b70f37029dca938444e6013f08684Steve Naroff } 42834084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 42844084c306635b70f37029dca938444e6013f08684Steve Naroff } 42854084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 42864084c306635b70f37029dca938444e6013f08684Steve Naroff} 42874084c306635b70f37029dca938444e6013f08684Steve Naroff 42884084c306635b70f37029dca938444e6013f08684Steve Naroff/// canAssignObjCInterfaces - Return true if the two interface types are 42894084c306635b70f37029dca938444e6013f08684Steve Naroff/// compatible for assignment from RHS to LHS. This handles validation of any 42904084c306635b70f37029dca938444e6013f08684Steve Naroff/// protocol qualifiers on the LHS or RHS. 42914084c306635b70f37029dca938444e6013f08684Steve Naroff/// 42924084c306635b70f37029dca938444e6013f08684Steve Naroffbool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 42934084c306635b70f37029dca938444e6013f08684Steve Naroff const ObjCObjectPointerType *RHSOPT) { 4294c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType* LHS = LHSOPT->getObjectType(); 4295c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType* RHS = RHSOPT->getObjectType(); 4296c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 42974084c306635b70f37029dca938444e6013f08684Steve Naroff // If either type represents the built-in 'id' or 'Class' types, return true. 4298c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (LHS->isObjCUnqualifiedIdOrClass() || 4299c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall RHS->isObjCUnqualifiedIdOrClass()) 43004084c306635b70f37029dca938444e6013f08684Steve Naroff return true; 43014084c306635b70f37029dca938444e6013f08684Steve Naroff 4302c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (LHS->isObjCQualifiedId() || RHS->isObjCQualifiedId()) 43031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 43041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType(RHSOPT,0), 43054084c306635b70f37029dca938444e6013f08684Steve Naroff false); 43064084c306635b70f37029dca938444e6013f08684Steve Naroff 4307c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // If we have 2 user-defined types, fall into that path. 4308c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (LHS->getInterface() && RHS->getInterface()) 43094084c306635b70f37029dca938444e6013f08684Steve Naroff return canAssignObjCInterfaces(LHS, RHS); 43101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43114084c306635b70f37029dca938444e6013f08684Steve Naroff return false; 431214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff} 431314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4314132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// canAssignObjCInterfacesInBlockPointer - This routine is specifically written 4315132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// for providing type-safty for objective-c pointers used to pass/return 4316132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// arguments in block literals. When passed as arguments, passing 'A*' where 4317132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// 'id' is expected is not OK. Passing 'Sub *" where 'Super *" is expected is 4318132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian/// not OK. For the return type, the opposite is not OK. 4319132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanianbool ASTContext::canAssignObjCInterfacesInBlockPointer( 4320132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4321132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian const ObjCObjectPointerType *RHSOPT) { 4322a98344869c278295f38e106583906377520079b8Fariborz Jahanian if (RHSOPT->isObjCBuiltinType() || LHSOPT->isObjCIdType()) 4323132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return true; 4324132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4325132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (LHSOPT->isObjCBuiltinType()) { 4326132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return RHSOPT->isObjCBuiltinType() || RHSOPT->isObjCQualifiedIdType(); 4327132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4328132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4329a98344869c278295f38e106583906377520079b8Fariborz Jahanian if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 4330132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 4331132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian QualType(RHSOPT,0), 4332132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian false); 4333132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4334132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 4335132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 4336132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (LHS && RHS) { // We have 2 user-defined types. 4337132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (LHS != RHS) { 4338132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 4339132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return false; 4340132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (RHS->getDecl()->isSuperClassOf(LHS->getDecl())) 4341132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return true; 4342132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4343132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian else 4344132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return true; 4345132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4346132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return false; 4347132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian} 4348132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4349e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// getIntersectionOfProtocols - This routine finds the intersection of set 4350e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// of protocols inherited from two distinct objective-c pointer objects. 4351e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// It is used to build composite qualifier list of the composite type of 4352e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian/// the conditional expression involving two objective-c pointer objects. 4353e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianstatic 4354e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanianvoid getIntersectionOfProtocols(ASTContext &Context, 4355e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *LHSOPT, 4356e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian const ObjCObjectPointerType *RHSOPT, 4357e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallVectorImpl<ObjCProtocolDecl *> &IntersectionOfProtocols) { 4358e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4359c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType* LHS = LHSOPT->getObjectType(); 4360c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType* RHS = RHSOPT->getObjectType(); 4361c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(LHS->getInterface() && "LHS must have an interface base"); 4362c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(RHS->getInterface() && "RHS must have an interface base"); 4363e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4364e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> InheritedProtocolSet; 4365e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned LHSNumProtocols = LHS->getNumProtocols(); 4366e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (LHSNumProtocols > 0) 4367e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHS->qual_begin(), LHS->qual_end()); 4368e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 4369432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> LHSInheritedProtocols; 4370c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Context.CollectInheritedProtocols(LHS->getInterface(), 4371c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall LHSInheritedProtocols); 4372e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian InheritedProtocolSet.insert(LHSInheritedProtocols.begin(), 4373e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian LHSInheritedProtocols.end()); 4374e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4375e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4376e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian unsigned RHSNumProtocols = RHS->getNumProtocols(); 4377e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (RHSNumProtocols > 0) { 4378cb421fa690da545b58a720abe5f1c49b166dbde7Dan Gohman ObjCProtocolDecl **RHSProtocols = 4379cb421fa690da545b58a720abe5f1c49b166dbde7Dan Gohman const_cast<ObjCProtocolDecl **>(RHS->qual_begin()); 4380e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian for (unsigned i = 0; i < RHSNumProtocols; ++i) 4381e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (InheritedProtocolSet.count(RHSProtocols[i])) 4382e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian IntersectionOfProtocols.push_back(RHSProtocols[i]); 4383e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4384e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian else { 4385432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 8> RHSInheritedProtocols; 4386c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Context.CollectInheritedProtocols(RHS->getInterface(), 4387c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall RHSInheritedProtocols); 4388432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian for (llvm::SmallPtrSet<ObjCProtocolDecl*,8>::iterator I = 4389432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian RHSInheritedProtocols.begin(), 4390432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian E = RHSInheritedProtocols.end(); I != E; ++I) 4391432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian if (InheritedProtocolSet.count((*I))) 4392432a8893f7e30d141d7f279bd00b741a3cdac81fFariborz Jahanian IntersectionOfProtocols.push_back((*I)); 4393e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4394e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian} 4395e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian 4396db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// areCommonBaseCompatible - Returns common base class of the two classes if 4397db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// one found. Note that this is O'2 algorithm. But it will be called as the 4398db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// last type comparison in a ?-exp of ObjC pointer types before a 4399db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian/// warning is issued. So, its invokation is extremely rare. 4400db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz JahanianQualType ASTContext::areCommonBaseCompatible( 4401c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectPointerType *Lptr, 4402c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectPointerType *Rptr) { 4403c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType *LHS = Lptr->getObjectType(); 4404c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType *RHS = Rptr->getObjectType(); 4405c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCInterfaceDecl* LDecl = LHS->getInterface(); 4406c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCInterfaceDecl* RDecl = RHS->getInterface(); 4407c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (!LDecl || !RDecl) 4408db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4409db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4410c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall while ((LDecl = LDecl->getSuperClass())) { 4411c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall LHS = cast<ObjCInterfaceType>(getObjCInterfaceType(LDecl)); 4412e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian if (canAssignObjCInterfaces(LHS, RHS)) { 4413c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall llvm::SmallVector<ObjCProtocolDecl *, 8> Protocols; 4414c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall getIntersectionOfProtocols(*this, Lptr, Rptr, Protocols); 4415c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4416c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall QualType Result = QualType(LHS, 0); 4417c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (!Protocols.empty()) 4418c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = getObjCObjectType(Result, Protocols.data(), Protocols.size()); 4419c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = getObjCObjectPointerType(Result); 4420c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall return Result; 4421e23fa2d0e84d1b878e012442a726c664216a9adfFariborz Jahanian } 4422db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian } 4423db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4424db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian return QualType(); 4425db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian} 4426db07b3f7cdcb505329c1280d7cf70791739a7cadFariborz Jahanian 4427c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCallbool ASTContext::canAssignObjCInterfaces(const ObjCObjectType *LHS, 4428c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType *RHS) { 4429c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(LHS->getInterface() && "LHS is not an interface type"); 4430c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(RHS->getInterface() && "RHS is not an interface type"); 4431c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 44326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 44336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 4434c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (!LHS->getInterface()->isSuperClassOf(RHS->getInterface())) 44356ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 44361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 44386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 4439c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (LHS->getNumProtocols() == 0) 44406ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 44411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44426ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 44436ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 4444c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff if (RHS->getNumProtocols() == 0) 44456ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 44461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4447c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall for (ObjCObjectType::qual_iterator LHSPI = LHS->qual_begin(), 4448c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall LHSPE = LHS->qual_end(); 444991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 445091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 445191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 445291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 445391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 4454c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall for (ObjCObjectType::qual_iterator RHSPI = RHS->qual_begin(), 4455c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall RHSPE = RHS->qual_end(); 44568f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff RHSPI != RHSPE; RHSPI++) { 44578f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 445891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 44598f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff break; 44608f16756441450ed9fb39316e47d107fc2a1ef35bSteve Naroff } 446191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 446291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 446391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 446491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 446591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 446691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 446791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 44686ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 44696ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 4470389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 4471389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 4472183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *LHSOPT = LHS->getAs<ObjCObjectPointerType>(); 4473183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *RHSOPT = RHS->getAs<ObjCObjectPointerType>(); 44741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 447514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (!LHSOPT || !RHSOPT) 4476389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 447714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 447814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 447914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff canAssignObjCInterfaces(RHSOPT, LHSOPT); 4480389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 4481389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 44821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 4483ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 44841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C99 6.2.7p1: Two types have compatible types if their types are the 4485ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 44863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 44870e709abafbd939326850501f795cc7a92c88a354Douglas Gregor if (getLangOptions().CPlusPlus) 44880e709abafbd939326850501f795cc7a92c88a354Douglas Gregor return hasSameType(LHS, RHS); 44890e709abafbd939326850501f795cc7a92c88a354Douglas Gregor 44903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 44913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 44923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4493132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanianbool ASTContext::typesAreBlockPointerCompatible(QualType LHS, QualType RHS) { 4494132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return !mergeTypes(LHS, RHS, true).isNull(); 4495132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian} 4496132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian 4497132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz JahanianQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs, 4498132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian bool OfBlockPointer) { 4499183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *lbase = lhs->getAs<FunctionType>(); 4500183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *rbase = rhs->getAs<FunctionType>(); 450172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 450272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 45033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 45043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 45053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 4507132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian QualType retType; 4508132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (OfBlockPointer) 4509132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian retType = mergeTypes(rbase->getResultType(), lbase->getResultType(), true); 4510132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian else 4511132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 45123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 45136de8b62ae42818c0bd8878b0d1900e17c7c43e0eFariborz Jahanian if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 451461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 45156de8b62ae42818c0bd8878b0d1900e17c7c43e0eFariborz Jahanian if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 451661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 45176a15c8586cc3e5d6e01c4c4e8b4374584569b58fDaniel Dunbar // FIXME: double check this 45186a15c8586cc3e5d6e01c4c4e8b4374584569b58fDaniel Dunbar // FIXME: should we error if lbase->getRegParmAttr() != 0 && 45196a15c8586cc3e5d6e01c4c4e8b4374584569b58fDaniel Dunbar // rbase->getRegParmAttr() != 0 && 45206a15c8586cc3e5d6e01c4c4e8b4374584569b58fDaniel Dunbar // lbase->getRegParmAttr() != rbase->getRegParmAttr()? 4521264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo lbaseInfo = lbase->getExtInfo(); 4522264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo rbaseInfo = rbase->getExtInfo(); 45236a15c8586cc3e5d6e01c4c4e8b4374584569b58fDaniel Dunbar unsigned RegParm = lbaseInfo.getRegParm() == 0 ? rbaseInfo.getRegParm() : 45246a15c8586cc3e5d6e01c4c4e8b4374584569b58fDaniel Dunbar lbaseInfo.getRegParm(); 45256a15c8586cc3e5d6e01c4c4e8b4374584569b58fDaniel Dunbar bool NoReturn = lbaseInfo.getNoReturn() || rbaseInfo.getNoReturn(); 45266a15c8586cc3e5d6e01c4c4e8b4374584569b58fDaniel Dunbar if (NoReturn != lbaseInfo.getNoReturn() || 45276a15c8586cc3e5d6e01c4c4e8b4374584569b58fDaniel Dunbar RegParm != lbaseInfo.getRegParm()) 45286a15c8586cc3e5d6e01c4c4e8b4374584569b58fDaniel Dunbar allLTypes = false; 45296a15c8586cc3e5d6e01c4c4e8b4374584569b58fDaniel Dunbar if (NoReturn != rbaseInfo.getNoReturn() || 45306a15c8586cc3e5d6e01c4c4e8b4374584569b58fDaniel Dunbar RegParm != rbaseInfo.getRegParm()) 45316a15c8586cc3e5d6e01c4c4e8b4374584569b58fDaniel Dunbar allRTypes = false; 4532264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola CallingConv lcc = lbaseInfo.getCC(); 4533264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola CallingConv rcc = rbaseInfo.getCC(); 4534ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor // Compatible functions must have compatible calling conventions 453504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!isSameCallConv(lcc, rcc)) 4536ab8bbf4ebd3e3e6eab913cb044772a62b7581941Douglas Gregor return QualType(); 45371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 45383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 4539465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 4540465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl "C++ shouldn't be here"); 45413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 45423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 45433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 45453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 45463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 45473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 45493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 45503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 45513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45527fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 45537fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 45547fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 45553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 45563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 45573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 45583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 45593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 4560132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian QualType argtype = mergeTypes(largtype, rargtype, OfBlockPointer); 45613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 45623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 456361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 456461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 456561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 456661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 45673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 45683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 45693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 45703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 45712455636163fdd18581d7fdae816433f886d88213Mike Stump lproto->isVariadic(), lproto->getTypeQuals(), 4572264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola false, false, 0, 0, 4573425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo(NoReturn, RegParm, lcc)); 45743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 45753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 45763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 45773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 45783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 457972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 45803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 4581465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 45823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 45833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 45843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 45853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 45863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 45873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 45883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 45893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 45903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 4591b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor 4592b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor // Look at the promotion type of enum types, since that is the type used 4593b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor // to pass enum values. 4594b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor if (const EnumType *Enum = argTy->getAs<EnumType>()) 4595b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor argTy = Enum->getDecl()->getPromotionType(); 4596b0f8eacfdcd0d43f51e669f2d723992d4af9f746Douglas Gregor 45973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 45983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 45993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 46003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 46013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 46023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 46033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 46043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 46052d3c191e1d5545e1724ee6e0550c70eef54beff2Mike Stump proto->getNumArgs(), proto->isVariadic(), 4606264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola proto->getTypeQuals(), 4607264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola false, false, 0, 0, 4608425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo(NoReturn, RegParm, lcc)); 46093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 46103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 46113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 46123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 4613425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola FunctionType::ExtInfo Info(NoReturn, RegParm, lcc); 4614264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola return getFunctionNoProtoType(retType, Info); 46153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 46163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4617132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz JahanianQualType ASTContext::mergeTypes(QualType LHS, QualType RHS, 4618132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian bool OfBlockPointer) { 461943d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 462043d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 462143d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 46227c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 46237c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 46240e709abafbd939326850501f795cc7a92c88a354Douglas Gregor assert(!LHS->getAs<ReferenceType>() && "LHS is a reference type?"); 46250e709abafbd939326850501f795cc7a92c88a354Douglas Gregor assert(!RHS->getAs<ReferenceType>() && "RHS is a reference type?"); 46260e709abafbd939326850501f795cc7a92c88a354Douglas Gregor 46273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 46283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 46293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4630f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 46313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 46323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 46333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 46340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If the qualifiers are different, the types aren't compatible... mostly. 4635a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor Qualifiers LQuals = LHSCan.getLocalQualifiers(); 4636a4923eb7c4b04d360cb2747641a5e92818edf804Douglas Gregor Qualifiers RQuals = RHSCan.getLocalQualifiers(); 46370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals != RQuals) { 46380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // If any of these qualifiers are different, we have a type 46390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // mismatch. 46400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || 46410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall LQuals.getAddressSpace() != RQuals.getAddressSpace()) 46420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 46430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 46440953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Exactly one GC qualifier difference is allowed: __strong is 46450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // okay if the other type has no GC qualifier but is an Objective 46460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // C object pointer (i.e. implicitly strong by default). We fix 46470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // this by pretending that the unqualified type was actually 46480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // qualified __strong. 46490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); 46500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); 46510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements"); 46520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 46530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) 46540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return QualType(); 46550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 46560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_L == Qualifiers::Strong && RHSCan->isObjCObjectPointerType()) { 46570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(LHS, getObjCGCQualType(RHS, Qualifiers::Strong)); 46580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 46590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (GC_R == Qualifiers::Strong && LHSCan->isObjCObjectPointerType()) { 46600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return mergeTypes(getObjCGCQualType(LHS, Qualifiers::Strong), RHS); 46610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 46623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 46630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 46640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 46650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall // Okay, qualifiers are equal. 46663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 4667852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 4668852d63b806c5cbd730c6b9d696e2e27d02546b49Eli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 4669f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 46701adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 46711adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 46721adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 46731adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 46744c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 46754c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 4676a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 4677a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 4678a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 4679a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 46801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4681c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // ObjCInterfaces are just specialized ObjCObjects. 4682c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (LHSClass == Type::ObjCInterface) LHSClass = Type::ObjCObject; 4683c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (RHSClass == Type::ObjCInterface) RHSClass = Type::ObjCObject; 4684c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 4685213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 4686213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 4687213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 46881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 46894e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 46904e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 46911adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 46921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // a signed integer type, or an unsigned integer type. 4693842aef8d942a880eeb9535d40de31a86838264cbJohn McCall // Compatibility is based on the underlying type, not the promotion 4694842aef8d942a880eeb9535d40de31a86838264cbJohn McCall // type. 4695183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = LHS->getAs<EnumType>()) { 46963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 46973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 4698bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 4699183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (const EnumType* ETy = RHS->getAs<EnumType>()) { 47003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 47013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 4702bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 47031adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 47043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 4705ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 47063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 47074a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 47081adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 470972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 471072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 4711ad5e73887052193afda72db8efcb812bd083a4a8John McCall#define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base) case Type::Class: 471272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 471372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 471472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 471572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 471672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 471772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 47187c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 47197c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 472072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 472172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 472272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 472372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 4724c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall case Type::ObjCInterface: 472572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 472672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 472772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 472872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 472972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 473072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 473172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 47321adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 47333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 47343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 47356217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<PointerType>()->getPointeeType(); 47366217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<PointerType>()->getPointeeType(); 47373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 47383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 473907d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 474061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 474107d258756dc856c6987c394a0972884e6ed46765Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 474261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 47433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 47443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 4745c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 4746c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 4747c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 47486217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType LHSPointee = LHS->getAs<BlockPointerType>()->getPointeeType(); 47496217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek QualType RHSPointee = RHS->getAs<BlockPointerType>()->getPointeeType(); 4750132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian QualType ResultType = mergeTypes(LHSPointee, RHSPointee, OfBlockPointer); 4751c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 4752c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 4753c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 4754c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 4755c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 4756c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 4757c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 47581adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 47593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 47603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 47613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 47623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 47633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 47643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 47653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 47663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 47673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 47683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 476961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 477061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 477161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 477261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 47733bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 47743bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 47753bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 47763bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 47773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 47783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 477961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 478061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 478161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 478261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 47833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 47843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 47853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 47863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 47873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 47883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 47893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 47903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 47913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 47923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 47933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 47943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 47953bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 47963bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 47977e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor return getIncompleteArrayType(ResultType, 47987e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor ArrayType::ArraySizeModifier(), 0); 47993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 48001adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 4801132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return mergeFunctionTypes(LHS, RHS, OfBlockPointer); 480272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 480372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 48043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 48051adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 48063cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 48073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 480864cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 480964cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 481064cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 48113cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 48125a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 48131c471f3e1c0ec8cbc82447bb35908dfc55463e46John McCall if (areCompatVectorTypes(LHSCan->getAs<VectorType>(), 48141c471f3e1c0ec8cbc82447bb35908dfc55463e46John McCall RHSCan->getAs<VectorType>())) 48153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 481661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 4817c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall case Type::ObjCObject: { 4818c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Check if the types are assignment compatible. 48195a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 48205a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 4821c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType* LHSIface = LHS->getAs<ObjCObjectType>(); 4822c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType* RHSIface = RHS->getAs<ObjCObjectType>(); 4823c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (canAssignObjCInterfaces(LHSIface, RHSIface)) 48245fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 48255fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 48263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 482761490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 482814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff case Type::ObjCObjectPointer: { 4829132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (OfBlockPointer) { 4830132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian if (canAssignObjCInterfacesInBlockPointer( 4831132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian LHS->getAs<ObjCObjectPointerType>(), 4832132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian RHS->getAs<ObjCObjectPointerType>())) 4833132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return LHS; 4834132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian return QualType(); 4835132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4836183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (canAssignObjCInterfaces(LHS->getAs<ObjCObjectPointerType>(), 4837183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall RHS->getAs<ObjCObjectPointerType>())) 483814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff return LHS; 483914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff 4840bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 4841132f2a2da34f378fc675b9e174564b0f52c31d98Fariborz Jahanian } 4842ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 484372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 484472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 4845ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 48467192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 48472390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian/// mergeObjCGCQualifiers - This routine merges ObjC's GC attribute of 'LHS' and 48482390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian/// 'RHS' attributes and returns the merged version; including for function 48492390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian/// return types. 48502390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz JahanianQualType ASTContext::mergeObjCGCQualifiers(QualType LHS, QualType RHS) { 48512390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian QualType LHSCan = getCanonicalType(LHS), 48522390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian RHSCan = getCanonicalType(RHS); 48532390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian // If two types are identical, they are compatible. 48542390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian if (LHSCan == RHSCan) 48552390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian return LHS; 48562390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian if (RHSCan->isFunctionType()) { 48572390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian if (!LHSCan->isFunctionType()) 48582390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian return QualType(); 48592390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian QualType OldReturnType = 48602390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian cast<FunctionType>(RHSCan.getTypePtr())->getResultType(); 48612390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian QualType NewReturnType = 48622390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian cast<FunctionType>(LHSCan.getTypePtr())->getResultType(); 48632390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian QualType ResReturnType = 48642390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian mergeObjCGCQualifiers(NewReturnType, OldReturnType); 48652390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian if (ResReturnType.isNull()) 48662390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian return QualType(); 48672390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian if (ResReturnType == NewReturnType || ResReturnType == OldReturnType) { 48682390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian // id foo(); ... __strong id foo(); or: __strong id foo(); ... id foo(); 48692390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian // In either case, use OldReturnType to build the new function type. 48702390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian const FunctionType *F = LHS->getAs<FunctionType>(); 48712390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian if (const FunctionProtoType *FPT = cast<FunctionProtoType>(F)) { 48722390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian FunctionType::ExtInfo Info = getFunctionExtInfo(LHS); 48732390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian QualType ResultType 48742390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian = getFunctionType(OldReturnType, FPT->arg_type_begin(), 48752390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian FPT->getNumArgs(), FPT->isVariadic(), 48762390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian FPT->getTypeQuals(), 48772390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian FPT->hasExceptionSpec(), 48782390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian FPT->hasAnyExceptionSpec(), 48792390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian FPT->getNumExceptions(), 48802390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian FPT->exception_begin(), 48812390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian Info); 48822390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian return ResultType; 48832390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian } 48842390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian } 48852390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian return QualType(); 48862390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian } 48872390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian 48882390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian // If the qualifiers are different, the types can still be merged. 48892390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian Qualifiers LQuals = LHSCan.getLocalQualifiers(); 48902390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian Qualifiers RQuals = RHSCan.getLocalQualifiers(); 48912390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian if (LQuals != RQuals) { 48922390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian // If any of these qualifiers are different, we have a type mismatch. 48932390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || 48942390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian LQuals.getAddressSpace() != RQuals.getAddressSpace()) 48952390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian return QualType(); 48962390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian 48972390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian // Exactly one GC qualifier difference is allowed: __strong is 48982390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian // okay if the other type has no GC qualifier but is an Objective 48992390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian // C object pointer (i.e. implicitly strong by default). We fix 49002390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian // this by pretending that the unqualified type was actually 49012390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian // qualified __strong. 49022390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); 49032390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); 49042390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements"); 49052390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian 49062390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) 49072390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian return QualType(); 49082390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian 49092390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian if (GC_L == Qualifiers::Strong) 49102390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian return LHS; 49112390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian if (GC_R == Qualifiers::Strong) 49122390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian return RHS; 49132390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian return QualType(); 49142390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian } 49152390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian 49162390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian if (LHSCan->isObjCObjectPointerType() && RHSCan->isObjCObjectPointerType()) { 49172390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian QualType LHSBaseQT = LHS->getAs<ObjCObjectPointerType>()->getPointeeType(); 49182390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian QualType RHSBaseQT = RHS->getAs<ObjCObjectPointerType>()->getPointeeType(); 49192390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian QualType ResQT = mergeObjCGCQualifiers(LHSBaseQT, RHSBaseQT); 49202390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian if (ResQT == LHSBaseQT) 49212390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian return LHS; 49222390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian if (ResQT == RHSBaseQT) 49232390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian return RHS; 49242390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian } 49252390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian return QualType(); 49262390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian} 49272390a72a3ebd37737fec5ba1385db9c3bb22fc59Fariborz Jahanian 49285426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 4929ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 4930ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 493188054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 4932ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 4933632d772a78db7e2cd9b36f8a22aee49d44486fbfSebastian Redl if (T->isBooleanType()) 4934ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 4935842aef8d942a880eeb9535d40de31a86838264cbJohn McCall if (EnumType *ET = dyn_cast<EnumType>(T)) 493629a7f3342c3c6dd15d914c61ae22246c36d51ce7Eli Friedman T = ET->getDecl()->getIntegerType(); 4937f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 4938ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 4939ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4940ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 4941ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 4942ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 49436a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 49446a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // Turn <4 x signed int> -> <4 x unsigned int> 49456a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const VectorType *VTy = T->getAs<VectorType>()) 49466a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner return getVectorType(getCorrespondingUnsignedType(VTy->getElementType()), 4947788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner VTy->getNumElements(), VTy->getAltiVecSpecific()); 49486a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 49496a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner // For enums, we return the unsigned version of the base type. 49506a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner if (const EnumType *ETy = T->getAs<EnumType>()) 4951ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 49526a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner 49536a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner const BuiltinType *BTy = T->getAs<BuiltinType>(); 49546a2b9261bf9c973c7122d9d1febce24a38fa862dChris Lattner assert(BTy && "Unexpected signed integer type"); 4955ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 4956ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 4957ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 4958ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 4959ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 4960ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 4961ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 4962ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 4963ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 4964ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 4965ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 4966ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 49672df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 49682df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 4969ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 4970ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 4971ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 4972ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 4973ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 4974ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 49752cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 49762cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 49772cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 497886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 497986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 498086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 498186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner// Builtin Type Computation 498286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner//===----------------------------------------------------------------------===// 498386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 498486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 498586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// pointer over the consumed characters. This returns the resultant type. 49861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 498786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ASTContext::GetBuiltinTypeError &Error, 498886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool AllowTypeModifiers = true) { 498986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Modifiers. 499086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner int HowLong = 0; 499186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Signed = false, Unsigned = false; 49921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 499386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the modifiers first. 499486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner bool Done = false; 499586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 499686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 49971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: Done = true; --Str; break; 499886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'S': 499986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 500086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use 'S' modifier multiple times!"); 500186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Signed = true; 500286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 500386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'U': 500486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 500586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 500686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Unsigned = true; 500786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 500886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'L': 500986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong <= 2 && "Can't have LLLL modifier"); 501086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ++HowLong; 501186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 501286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 501386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 501486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 501586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Type; 50161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 501786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Read the base type. 501886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner switch (*Str++) { 501986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: assert(0 && "Unknown builtin type letter!"); 502086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'v': 502186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 502286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'v'!"); 502386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.VoidTy; 502486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 502586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'f': 502686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && 502786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'f'!"); 502886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.FloatTy; 502986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 503086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'd': 503186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong < 2 && !Signed && !Unsigned && 503286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "Bad modifiers used with 'd'!"); 503386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong) 503486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.LongDoubleTy; 503586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 503686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.DoubleTy; 503786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 503886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 's': 503986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 's'!"); 504086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Unsigned) 504186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedShortTy; 504286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 504386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.ShortTy; 504486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 504586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'i': 504686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (HowLong == 3) 504786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 504886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 2) 504986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 505086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (HowLong == 1) 505186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 505286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 505386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 505486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 505586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'c': 505686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 505786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Signed) 505886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.SignedCharTy; 505986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else if (Unsigned) 506086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.UnsignedCharTy; 506186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner else 506286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.CharTy; 506386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 506486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'b': // boolean 506586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 506686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.BoolTy; 506786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 506886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'z': // size_t. 506986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 507086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getSizeType(); 507186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 507286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'F': 507386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getCFConstantStringType(); 507486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 507586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'a': 507686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 507786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 507886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 507986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'A': 508086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // This is a "reference" to a va_list; however, what exactly 508186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // this means depends on how va_list is defined. There are two 508286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // different kinds of va_list: ones passed by value, and ones 508386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // passed by reference. An example of a by-value va_list is 508486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // x86, where va_list is a char*. An example of by-ref va_list 508586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // is x86-64, where va_list is a __va_list_tag[1]. For x86, 508686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // we want this argument to be a char*&; for x86-64, we want 508786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // it to be a __va_list_tag*. 508886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getBuiltinVaListType(); 508986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(!Type.isNull() && "builtin va list type not initialized!"); 509086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Type->isArrayType()) { 509186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getArrayDecayedType(Type); 509286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } else { 509386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Type = Context.getLValueReferenceType(Type); 509486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 509586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 509686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'V': { 509786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner char *End; 509886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner unsigned NumElements = strtoul(Str, &End, 10); 509986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert(End != Str && "Missing vector size"); 51001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 510186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Str = End; 51021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 510386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 510482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson // FIXME: Don't know what to do about AltiVec. 5105788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner Type = Context.getVectorType(ElementType, NumElements, 5106788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner VectorType::NotAltiVec); 510786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 510886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 5109d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor case 'X': { 5110d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 5111d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor Type = Context.getComplexType(ElementType); 5112d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor break; 5113d3a23b238a2b2c0f11e6ac4951c7410a8c5717bfDouglas Gregor } 51149a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'P': 5115c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor Type = Context.getFILEType(); 5116c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25Douglas Gregor if (Type.isNull()) { 5117f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_stdio; 511886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 511986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 5120fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 51219a5a7e7351f78345a72c4956af25590f6d40ebcdChris Lattner case 'J': 5122f711c41dd9412a8182793259d355c4f6979ed5edMike Stump if (Signed) 5123782fa308a765aeac2acb39c4e697c937ec21185bMike Stump Type = Context.getsigjmp_bufType(); 5124f711c41dd9412a8182793259d355c4f6979ed5edMike Stump else 5125f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Type = Context.getjmp_bufType(); 5126f711c41dd9412a8182793259d355c4f6979ed5edMike Stump 5127fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump if (Type.isNull()) { 5128f711c41dd9412a8182793259d355c4f6979ed5edMike Stump Error = ASTContext::GE_Missing_setjmp; 5129fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump return QualType(); 5130fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump } 5131fd612dbb23cd31c03c898ae53ff18d0dfd8488f9Mike Stump break; 5132782fa308a765aeac2acb39c4e697c937ec21185bMike Stump } 51331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 513486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (!AllowTypeModifiers) 513586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 51361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 513786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Done = false; 513886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (!Done) { 5139187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall switch (char c = *Str++) { 514086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner default: Done = true; --Str; break; 514186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '*': 514286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case '&': 5143187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall { 5144187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall // Both pointers and references can have their pointee types 5145187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall // qualified with an address space. 5146187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall char *End; 5147187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall unsigned AddrSpace = strtoul(Str, &End, 10); 5148187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall if (End != Str && AddrSpace != 0) { 5149187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall Type = Context.getAddrSpaceQualType(Type, AddrSpace); 5150187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall Str = End; 5151187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall } 5152187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall } 5153187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall if (c == '*') 5154187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall Type = Context.getPointerType(Type); 5155187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall else 5156187ab37a05b8f7015b9f39cc8cd9129a0c6d0b48John McCall Type = Context.getLValueReferenceType(Type); 515786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 515886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // FIXME: There's no way to have a built-in with an rvalue ref arg. 515986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner case 'C': 51600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Type = Type.withConst(); 516186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner break; 5162013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian case 'D': 5163013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian Type = Context.getVolatileType(Type); 5164013af39d2a6a2e684f5a458c97890c52cddb7157Fariborz Jahanian break; 516586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 516686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 51671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 516886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return Type; 516986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 517086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 517186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner/// GetBuiltinType - Return the type for the specified builtin. 517286df27bbdbb98c39ec2184695c0561209f91beddChris LattnerQualType ASTContext::GetBuiltinType(unsigned id, 517386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner GetBuiltinTypeError &Error) { 517486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner const char *TypeStr = BuiltinInfo.GetTypeString(id); 51751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 517686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner llvm::SmallVector<QualType, 8> ArgTypes; 51771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 517886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Error = GE_None; 517986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 518086df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 518186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 518286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner while (TypeStr[0] && TypeStr[0] != '.') { 518386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 518486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Error != GE_None) 518586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return QualType(); 518686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 518786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // Do array -> pointer decay. The builtin should use the decayed type. 518886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (Ty->isArrayType()) 518986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner Ty = getArrayDecayedType(Ty); 51901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 519186df27bbdbb98c39ec2184695c0561209f91beddChris Lattner ArgTypes.push_back(Ty); 519286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner } 519386df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 519486df27bbdbb98c39ec2184695c0561209f91beddChris Lattner assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 519586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner "'.' should only occur at end of builtin type list!"); 519686df27bbdbb98c39ec2184695c0561209f91beddChris Lattner 519786df27bbdbb98c39ec2184695c0561209f91beddChris Lattner // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 519886df27bbdbb98c39ec2184695c0561209f91beddChris Lattner if (ArgTypes.size() == 0 && TypeStr[0] == '.') 519986df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionNoProtoType(ResType); 5200ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor 5201ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor // FIXME: Should we create noreturn types? 520286df27bbdbb98c39ec2184695c0561209f91beddChris Lattner return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 5203ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor TypeStr[0] == '.', 0, false, false, 0, 0, 5204264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo()); 520586df27bbdbb98c39ec2184695c0561209f91beddChris Lattner} 5206a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 5207a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanQualType 5208a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli FriedmanASTContext::UsualArithmeticConversionsType(QualType lhs, QualType rhs) { 5209a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Perform the usual unary conversions. We do this early so that 5210a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // integral promotions to "int" can allow us to exit early, in the 5211a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // lhs == rhs check. Also, for conversion purposes, we ignore any 5212a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // qualifiers. For example, "const float" and "float" are 5213a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // equivalent. 5214a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isPromotableIntegerType()) 5215a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getPromotedIntegerType(lhs); 5216a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 5217a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = lhs.getUnqualifiedType(); 5218a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isPromotableIntegerType()) 5219a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getPromotedIntegerType(rhs); 5220a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman else 5221a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = rhs.getUnqualifiedType(); 5222a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 5223a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If both types are identical, no conversion is needed. 5224a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs == rhs) 5225a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 52261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5227a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // If either side is a non-arithmetic type (e.g. a pointer), we are done. 5228a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The caller can deal with this (e.g. pointer + int). 5229a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (!lhs->isArithmeticType() || !rhs->isArithmeticType()) 5230a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 52311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 52321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // At this point, we have two different arithmetic types. 52331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5234a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle complex types first (C99 6.3.1.8p1). 5235a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexType() || rhs->isComplexType()) { 5236a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the complex type. 52371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (rhs->isIntegerType() || rhs->isComplexIntegerType()) { 5238a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 5239a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5240a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 52411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isIntegerType() || lhs->isComplexIntegerType()) { 5242a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 5243a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5244a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5245a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // This handles complex/complex, complex/float, or float/complex. 52461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // When both operands are complex, the shorter operand is converted to the 52471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type of the longer, and that is the type of the result. This corresponds 52481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // to what is done when combining two real floating-point operands. 52491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The fun begins when size promotion occur across type domains. 5250a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // From H&S 6.3.4: When one operand is complex and the other is a real 52511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // floating-point type, the less precise type is converted, within it's 5252a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // real or complex domain, to the precision of the other type. For example, 52531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // when combining a "long double" with a "double _Complex", the 5254a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // "double _Complex" is promoted to "long double _Complex". 5255a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 52561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 52571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (result > 0) { // The left side is bigger, convert rhs. 5258a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhs = getFloatingTypeOfSizeWithinDomain(lhs, rhs); 52591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (result < 0) { // The right side is bigger, convert lhs. 5260a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman lhs = getFloatingTypeOfSizeWithinDomain(rhs, lhs); 52611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 5262a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // At this point, lhs and rhs have the same rank/size. Now, make sure the 5263a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // domains match. This is a requirement for our implementation, C99 5264a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // does not require this promotion. 5265a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs != rhs) { // Domains don't match, we have complex/float mix. 5266a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType()) { // handle "double, _Complex double". 5267a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5268a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { // handle "_Complex double, double". 5269a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5270a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5271a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5272a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // The domain/size match exactly. 5273a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5274a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Now handle "real" floating types (i.e. float, double, long double). 5275a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isRealFloatingType() || rhs->isRealFloatingType()) { 5276a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // if we have an integer operand, the result is the real floating type. 5277a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isIntegerType()) { 5278a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the lhs floating point type. 5279a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5280a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5281a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (rhs->isComplexIntegerType()) { 5282a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert rhs to the complex floating point type. 5283a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(lhs); 5284a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5285a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isIntegerType()) { 5286a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the rhs floating point type. 5287a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5288a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 52891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (lhs->isComplexIntegerType()) { 5290a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert lhs to the complex floating point type. 5291a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return getComplexType(rhs); 5292a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5293a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // We have two real floating types, float/complex combos were handled above. 5294a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Convert the smaller operand to the bigger result. 5295a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int result = getFloatingTypeOrder(lhs, rhs); 5296a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (result > 0) // convert the rhs 5297a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5298a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman assert(result < 0 && "illegal float comparison"); 5299a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; // convert the lhs 5300a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5301a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhs->isComplexIntegerType() || rhs->isComplexIntegerType()) { 5302a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Handle GCC complex int extension. 5303a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *lhsComplexInt = lhs->getAsComplexIntegerType(); 5304a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman const ComplexType *rhsComplexInt = rhs->getAsComplexIntegerType(); 5305a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman 5306a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsComplexInt && rhsComplexInt) { 53071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (getIntegerTypeOrder(lhsComplexInt->getElementType(), 5308a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsComplexInt->getElementType()) >= 0) 5309a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; // convert the rhs 5310a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5311a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (lhsComplexInt && rhs->isIntegerType()) { 5312a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the rhs to the lhs complex type. 5313a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return lhs; 5314a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (rhsComplexInt && lhs->isIntegerType()) { 5315a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // convert the lhs to the rhs complex type. 5316a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return rhs; 5317a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5318a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5319a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Finally, we have two differing integer types. 5320a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The rules for this case are in C99 6.3.1.8 5321a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman int compare = getIntegerTypeOrder(lhs, rhs); 5322a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman bool lhsSigned = lhs->isSignedIntegerType(), 5323a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman rhsSigned = rhs->isSignedIntegerType(); 5324a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman QualType destType; 5325a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman if (lhsSigned == rhsSigned) { 5326a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // Same signedness; use the higher-ranked type 5327a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = compare >= 0 ? lhs : rhs; 5328a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (compare != (lhsSigned ? 1 : -1)) { 5329a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The unsigned type has greater than or equal rank to the 5330a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // signed type, so use the unsigned type 5331a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? rhs : lhs; 5332a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else if (getIntWidth(lhs) != getIntWidth(rhs)) { 5333a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The two types are different widths; if we are here, that 5334a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // means the signed type is larger than the unsigned type, so 5335a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // use the signed type. 5336a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = lhsSigned ? lhs : rhs; 5337a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } else { 5338a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // The signed type is higher-ranked than the unsigned type, 5339a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // but isn't actually any bigger (like unsigned int and long 5340a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // on most 32-bit systems). Use the unsigned type corresponding 5341a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman // to the signed type. 5342a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman destType = getCorrespondingUnsignedType(lhsSigned ? lhs : rhs); 5343a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman } 5344a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman return destType; 5345a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman} 5346