ASTContext.cpp revision 38aeec7299c48cb79523f7f89776fb258c84aeea
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ASTContext.cpp - Context to hold long-lived AST nodes ------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the ASTContext interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 1549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis#include "clang/AST/DeclCXX.h" 16980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 17aaba5e346dffdbad5d1c42765a89e4a7afb0da67Douglas Gregor#include "clang/AST/DeclTemplate.h" 18e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 192cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor#include "clang/AST/ExternalASTSource.h" 20e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/RecordLayout.h" 21a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner#include "clang/Basic/SourceManager.h" 225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 2385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 246fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.h" 25557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner#include "llvm/Support/MemoryBuffer.h" 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3261710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 3361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner TargetInfo &t, 34e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 352deaea37a637dd01221d0cced343702a39d8132cDouglas Gregor bool FreeMem, unsigned size_reserve, 362deaea37a637dd01221d0cced343702a39d8132cDouglas Gregor bool InitializeBuiltins) : 37ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 38ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor ObjCFastEnumerationStateTypeDecl(0), SourceMgr(SM), LangOpts(LOpts), 392cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor FreeMemory(FreeMem), Target(t), Idents(idents), Selectors(sels), 402cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource(0) { 41e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 42e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar InitBuiltinTypes(); 43e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 447a9cbedca55edd4a11330c2426298a3033a873b5Douglas Gregor BuiltinInfo.InitializeTargetBuiltins(Target); 452deaea37a637dd01221d0cced343702a39d8132cDouglas Gregor if (InitializeBuiltins) 462deaea37a637dd01221d0cced343702a39d8132cDouglas Gregor this->InitializeBuiltins(idents); 47e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 48e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 524b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 55b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 56b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 57b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 58b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 59b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 60b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 61b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 62b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 63b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 64b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 65b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 66b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>::iterator 67b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar I = ObjCLayouts.begin(), E = ObjCLayouts.end(); 68b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 69b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 72b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 73b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 74ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 751ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 761ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 771ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNSEnd = NestedNameSpecifiers.end(); 78e7dcd782df0e1cc3a63e429a866098e69db39153Douglas Gregor NNS != NNSEnd; 791ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor /* Increment in loop */) 801ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 81ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 82ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 83ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 84ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 85b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 882deaea37a637dd01221d0cced343702a39d8132cDouglas Gregorvoid ASTContext::InitializeBuiltins(IdentifierTable &idents) { 892deaea37a637dd01221d0cced343702a39d8132cDouglas Gregor BuiltinInfo.InitializeBuiltins(idents, LangOpts.NoBuiltin); 902deaea37a637dd01221d0cced343702a39d8132cDouglas Gregor} 912deaea37a637dd01221d0cced343702a39d8132cDouglas Gregor 922cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid 932cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 942cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource.reset(Source.take()); 952cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor} 962cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumBuiltin = 0, NumPointer = 0, NumArray = 0, NumFunctionP = 0; 101248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar unsigned NumVector = 0, NumComplex = 0, NumBlockPointer = 0; 1027c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl unsigned NumFunctionNP = 0, NumTypeName = 0, NumTagged = 0; 1037c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl unsigned NumLValueReference = 0, NumRValueReference = 0, NumMemberPointer = 0; 1047c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumTagStruct = 0, NumTagUnion = 0, NumTagEnum = 0, NumTagClass = 0; 106a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCInterfaces = 0, NumObjCQualifiedInterfaces = 0; 107a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCQualifiedIds = 0; 10872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor unsigned NumTypeOfTypes = 0, NumTypeOfExprTypes = 0; 109c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor unsigned NumExtQual = 0; 110c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isa<BuiltinType>(T)) 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumBuiltin; 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<PointerType>(T)) 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumPointer; 117248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar else if (isa<BlockPointerType>(T)) 118248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar ++NumBlockPointer; 1197c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl else if (isa<LValueReferenceType>(T)) 1207c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ++NumLValueReference; 1217c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl else if (isa<RValueReferenceType>(T)) 1227c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ++NumRValueReference; 123f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl else if (isa<MemberPointerType>(T)) 124f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl ++NumMemberPointer; 1256d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<ComplexType>(T)) 1266d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumComplex; 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ArrayType>(T)) 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumArray; 1296d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<VectorType>(T)) 1306d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumVector; 13172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor else if (isa<FunctionNoProtoType>(T)) 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionNP; 13372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor else if (isa<FunctionProtoType>(T)) 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionP; 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<TypedefType>(T)) 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTypeName; 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (TagType *TT = dyn_cast<TagType>(T)) { 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTagged; 13939ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis switch (TT->getDecl()->getTagKind()) { 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown tagged type!"); 14139ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_struct: ++NumTagStruct; break; 14239ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_union: ++NumTagUnion; break; 14339ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_class: ++NumTagClass; break; 14439ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_enum: ++NumTagEnum; break; 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 146a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isa<ObjCInterfaceType>(T)) 147a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCInterfaces; 148a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedInterfaceType>(T)) 149a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedInterfaces; 150a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedIdType>(T)) 151a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedIds; 1526cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfType>(T)) 1536cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfTypes; 15472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor else if (isa<TypeOfExprType>(T)) 15572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor ++NumTypeOfExprTypes; 156c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor else if (isa<ExtQualType>(T)) 157c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor ++NumExtQual; 1583f128ad2691d299b96663da85a9e069c4081ea7cSteve Naroff else { 159beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner QualType(T, 0).dump(); 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(0 && "Unknown type!"); 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d builtin types\n", NumBuiltin); 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d pointer types\n", NumPointer); 166248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar fprintf(stderr, " %d block pointer types\n", NumBlockPointer); 1677c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl fprintf(stderr, " %d lvalue reference types\n", NumLValueReference); 1687c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl fprintf(stderr, " %d rvalue reference types\n", NumRValueReference); 169f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl fprintf(stderr, " %d member pointer types\n", NumMemberPointer); 1706d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d complex types\n", NumComplex); 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d array types\n", NumArray); 1726d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d vector types\n", NumVector); 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with proto\n", NumFunctionP); 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with no proto\n", NumFunctionNP); 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d typename (typedef) types\n", NumTypeName); 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d tagged types\n", NumTagged); 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d struct types\n", NumTagStruct); 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d union types\n", NumTagUnion); 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d class types\n", NumTagClass); 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d enum types\n", NumTagEnum); 181a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek fprintf(stderr, " %d interface types\n", NumObjCInterfaces); 182beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner fprintf(stderr, " %d protocol qualified interface types\n", 183a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedInterfaces); 184c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian fprintf(stderr, " %d protocol qualified id types\n", 185a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedIds); 1866cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof types\n", NumTypeOfTypes); 18772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor fprintf(stderr, " %d typeof exprs\n", NumTypeOfExprTypes); 188c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor fprintf(stderr, " %d attribute-qualified types\n", NumExtQual); 1897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 1905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "Total bytes = %d\n", int(NumBuiltin*sizeof(BuiltinType)+ 1915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumPointer*sizeof(PointerType)+NumArray*sizeof(ArrayType)+ 1926d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner NumComplex*sizeof(ComplexType)+NumVector*sizeof(VectorType)+ 1937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl NumLValueReference*sizeof(LValueReferenceType)+ 1947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl NumRValueReference*sizeof(RValueReferenceType)+ 195f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl NumMemberPointer*sizeof(MemberPointerType)+ 19672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor NumFunctionP*sizeof(FunctionProtoType)+ 19772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor NumFunctionNP*sizeof(FunctionNoProtoType)+ 1986cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeName*sizeof(TypedefType)+NumTagged*sizeof(TagType)+ 199c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor NumTypeOfTypes*sizeof(TypeOfType)+NumTypeOfExprTypes*sizeof(TypeOfExprType)+ 200c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor NumExtQual*sizeof(ExtQualType))); 2012cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 2022cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor if (ExternalSource.get()) { 2032cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor fprintf(stderr, "\n"); 2042cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor ExternalSource->PrintStats(); 2052cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 210f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Types.push_back((R = QualType(new (*this,8) BuiltinType(K),0)).getTypePtr()); 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 2145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 2155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 2185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 22298be4943e8dc4f3905629a7102668960873cf863Chris Lattner if (Target.isCharSigned()) 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 2315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 2355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 2365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 2375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 2385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 2395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 2415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 2425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 2435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 24464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 2452df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner // GNU extension, 128-bit integers. 2462df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(Int128Ty, BuiltinType::Int128); 2472df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 2482df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner 2493a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 2503a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 2513a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 2523a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 25364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 2548e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 255898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 256898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 257898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 258898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 259898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 260898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 261898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 262898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 2638e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2688e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2697e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 270a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = QualType(); 2717e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = 0; 272a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = QualType(); 2738baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = 0; 2748baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 275a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 27633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 27733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 27833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2796e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl 2806e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl // nullptr type (C++0x 2.14.7) 2816e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 2825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 284464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 285464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 286464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 287a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 288b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 289b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 290b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 291b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 292b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 293b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 294b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 295b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 296b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 297b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 298b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 299b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 300b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 301af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// getDeclAlign - Return a conservative estimate of the alignment of the 302af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 303af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 304b7d0844c887a72064b624dc6df12cbe1441f69d0Daniel Dunbarunsigned ASTContext::getDeclAlignInBytes(const Decl *D) { 305dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 306dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 307dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 308dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, AA->getAlignment()); 309dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 310af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 311af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 3124cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson if (const ReferenceType* RT = T->getAsReferenceType()) { 3134cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 314f0930235ce58a91aa3b840bece9052f44d630536Anders Carlsson Align = Target.getPointerAlign(AS); 3154cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson } else if (!T->isIncompleteType() && !T->isFunctionType()) { 3164cc2cfd48d7c2d11141871cad590db7b52ce00a0Anders Carlsson // Incomplete or function types default to 1. 317dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 318dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 319dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 320dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 321dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 322af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 323dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 324dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 325af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 326b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 327a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 328a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 329d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 3301d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 3315e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 3325e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 333a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 33472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 33572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 33618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor#define NON_CANONICAL_TYPE(Class, Base) 33772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 33872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 33918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(false && "Should not see dependent types"); 34072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 34172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 3425d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 3435d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 34418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(function) = 32 bits 34518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 34618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 32; 34718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 34818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 34972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 350fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 35118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 35218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 35318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 35418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 355fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 3561d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 357030d8846c7e520330007087e949f621989876e3aChris Lattner 35898be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 3599e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 360030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 361030d8846c7e520330007087e949f621989876e3aChris Lattner break; 3625c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 363213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 364030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 365030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 36698be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 3679e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 3684bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 3696fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 3706fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 3716fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // FIXME: this should probably be a target property. 3726fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman Align = 1 << llvm::Log2_32_Ceil(Align); 373030d8846c7e520330007087e949f621989876e3aChris Lattner break; 374030d8846c7e520330007087e949f621989876e3aChris Lattner } 3755d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 3769e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 377a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 378692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 379d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 38018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // GCC extension: alignof(void) = 8 bits. 38118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = 0; 38218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = 8; 38318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor break; 38418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 3856f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 3869e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 3879e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 3886f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 389692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 390692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 391692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 3926f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 3939e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 3949e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 3956f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 39664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 39764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 39864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 39964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 400692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 4016f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 4029e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 4039e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 4046f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 405692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 4066f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 4079e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 4089e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 4096f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 410692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 4116f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 4129e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 4139e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 4146f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 415692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 4166f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 4179e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 4189e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 4196f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 420ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::Int128: 421ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner case BuiltinType::UInt128: 422ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Width = 128; 423ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner Align = 128; // int128_t is 128-bit aligned on all targets. 424ec16cb9b5a481d62a73ad47fa59034ced4d62022Chris Lattner break; 4256f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 4269e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 4279e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 4286f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 4296f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 4305426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 4315426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 4326f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 4336f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 4349e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 4359e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 4366f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 4376e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl case BuiltinType::NullPtr: 4386e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 4396e8ed16ffef02b82995a90bdcf10ffff7d63839aSebastian Redl Align = Target.getPointerAlign(0); // == sizeof(void*) 440a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 441bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 442f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case Type::FixedWidthInt: 443f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: This isn't precisely correct; the width/alignment should depend 444f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // on the available types for the target 445f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Width = cast<FixedWidthIntType>(T)->getWidth(); 446736166b38235cf6d0ffb67638960d95fb2afcbd6Chris Lattner Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 447f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Align = Width; 448f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman break; 449f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian case Type::ExtQual: 45098be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 45198be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 452f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian return getTypeInfo(QualType(cast<ExtQualType>(T)->getBaseType(), 0)); 453a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek case Type::ObjCQualifiedId: 45472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 4555426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 456f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 4576f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 458485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 459485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 460485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 461485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 462485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 463485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 464f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 465f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 4665426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 467f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 468f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 469f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 4707c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 4717c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 4727ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 4735d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 4746f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 4756f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 476bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 477f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 4788edef7c31d27fc9d5d163660702a8a7730a0d19fSebastian Redl // FIXME: This is not only platform- but also ABI-dependent. We follow 479f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // the GCC ABI, where pointers to data are one pointer large, pointers to 480f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // functions two pointers. But if we want to support ABI compatibility with 4818edef7c31d27fc9d5d163660702a8a7730a0d19fSebastian Redl // other compilers too, we need to delegate this completely to TargetInfo 4828edef7c31d27fc9d5d163660702a8a7730a0d19fSebastian Redl // or some ABI abstraction layer. 483f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 484f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl unsigned AS = Pointee.getAddressSpace(); 485f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width = Target.getPointerWidth(AS); 486f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 487f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 488f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Align = Target.getPointerAlign(AS); 489f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // GCC aligns at single pointer width. 490f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 4915d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 4925d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 4935d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 4945d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 49598be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 4969e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 4975d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 4985d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 4995d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 50044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 5011d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 50244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 50344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 50444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 50544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 50644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 50772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 50872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 5091d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 5101d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 5111d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 5128389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 5138389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 5148389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 5158389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 5168389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 5171d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 5187176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 5197176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 5201d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 5217176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 5227176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 5237176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 524dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 525a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 5267532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 52718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::Typedef: { 52818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 52918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 53018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Align = Aligned->getAlignment(); 53118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 53218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } else 53318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 5347532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 5357176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 53618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 53718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOfExpr: 53818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 53918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor .getTypePtr()); 54018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 54118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TypeOf: 54218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 54318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 54418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::QualifiedName: 54518857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 54618857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor 54718857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor case Type::TemplateSpecialization: 54818857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor assert(getCanonicalType(T) != T && 54918857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor "Cannot request the size of a dependent type"); 55018857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // FIXME: this is likely to be wrong once we support template 55118857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // aliases, since a template alias could refer to a typedef that 55218857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor // has an __aligned__ attribute on it. 55318857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor return getTypeInfo(getCanonicalType(T)); 55418857644059c45da6776f1a288eec7b4cf3a844aDouglas Gregor } 555d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 556464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 5579e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 558a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 559a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 56034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 56134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 56234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 56334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 56434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 56534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 56634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 56734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner // Doubles should be naturally aligned if possible. 568e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar if (T->isSpecificBuiltinType(BuiltinType::Double)) 569e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar return std::max(ABIAlign, 64U); 57034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 57134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 57234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 57334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 57434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 5758b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 5768b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 5773b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar bool IsUnion, unsigned StructPacking, 5788b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 5793b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned FieldPacking = StructPacking; 5808b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 5818b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 5828b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 5833b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 5843b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: Should this override struct packing? Probably we want to 5853b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // take the minimum? 5863b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = FD->getAttr<PackedAttr>()) 5873b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldPacking = PA->getAlignment(); 5888b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5898b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 5908b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 5918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 5929a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman FieldSize = BitWidthExpr->EvaluateAsInt(Context).getZExtValue(); 5938b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5948b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 5958b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 5968b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 5978b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5983b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 5993b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 6003b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. 6013b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 6023b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 6038b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 6043b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 6053b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, FieldPacking); 6068b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 6078b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 6088b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 6098b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 6108b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 6118b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 6128b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 6138b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 6148b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 6158b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 6168b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 6178b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 6188389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 6198389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 6208b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 6218b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 6228b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 6238b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 624c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 6258b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 6262f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson } else if (const ReferenceType *RT = FD->getType()->getAsReferenceType()) { 6272f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson unsigned AS = RT->getPointeeType().getAddressSpace(); 6282f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson FieldSize = Context.Target.getPointerWidth(AS); 6292f1169f45b915c40c6f330af69e4e13dd18a5084Anders Carlsson FieldAlign = Context.Target.getPointerAlign(AS); 6308b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 6318b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 6328b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 6338b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 6348b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 6358b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 6368b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 6373b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 6383b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 6393b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. Additionally, the packing alignment must be at least 6403b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a byte for non-bitfields. 6413b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // 6423b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 6433b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 6443b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 6453b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, std::max(8U, FieldPacking)); 6468b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 6478b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 6488b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 6498b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 6508b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 6518b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 6528b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 6538b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 6548b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 6558b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 6568b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 6578b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 6588b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 6598b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 6608b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 6618b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 6628b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 663d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar // Remember the next available offset. 664d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar NextOffset = Size; 665d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar 6668b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 6678b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 6688b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 6698b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 670a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarstatic void CollectLocalObjCIvars(ASTContext *Ctx, 671a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar const ObjCInterfaceDecl *OI, 672a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 673a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 674a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 675f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 676a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 677a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 678a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 679a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 680a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 681a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbarvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 682a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar llvm::SmallVectorImpl<FieldDecl*> &Fields) { 683a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 684a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectObjCIvars(SuperClass, Fields); 685a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar CollectLocalObjCIvars(this, OI, Fields); 686a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar} 687a80a0f6398df06c018af779a7ca82a29172c45d1Daniel Dunbar 6889820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 6899820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 6909820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(*this), 6919820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->prop_end(*this); I != E; ++I) 6929820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 6939820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 6949820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 6959820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into nested protocols. 6969820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 6979820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = PD->protocol_end(); P != E; ++P) 6989820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(*P, Ivars); 6999820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 7009820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 7019820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// CollectSynthesizedIvars - 7029820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// This routine collect synthesized ivars for the designated class. 7039820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian/// 7049820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanianvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 7059820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 7069820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(*this), 7079820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian E = OI->prop_end(*this); I != E; ++I) { 7089820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 7099820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian Ivars.push_back(Ivar); 7109820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 7119820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // Also look into interface's protocol list for properties declared 7129820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // in the protocol and whose ivars are synthesized. 7139820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 7149820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian PE = OI->protocol_end(); P != PE; ++P) { 7159820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian ObjCProtocolDecl *PD = (*P); 7169820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectProtocolSynthesizedIvars(PD, Ivars); 7179820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian } 7189820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian} 7199820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian 720b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 721b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 722b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 723b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 724b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 72544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 726b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 727b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 728532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 729532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 73044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 731d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCContainerDecl *Key = 732d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 733d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 734d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 73544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 736453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar unsigned FieldCount = D->ivar_size(); 737453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 738453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 7399820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVector<ObjCIvarDecl*, 16> Ivars; 7409820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectSynthesizedIvars(D, Ivars); 7419820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian FieldCount += Ivars.size(); 742d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 743453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 744453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 745453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 746453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (FieldCount == D->ivar_size()) 747453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 748453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 749453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 7506a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 7516a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 7526a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 7536a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 754d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar 755913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar // We start laying out ivars not at the end of the superclass 756913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar // structure, but at the next byte following the last field. 757913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar uint64_t Size = llvm::RoundUpToAlignment(SL.NextOffset, 8); 758d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar 759d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCLayouts[Key] = NewEntry = new ASTRecordLayout(Size, Alignment); 7606a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 7616a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 762d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCLayouts[Key] = NewEntry = new ASTRecordLayout(); 7636a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 7646a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 76544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 7663b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 7673b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 7683b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 76944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 77044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 77144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 77244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 77344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 77444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 77544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 77644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel for (ObjCInterfaceDecl::ivar_iterator IVI = D->ivar_begin(), 77744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel IVE = D->ivar_end(); IVI != IVE; ++IVI) { 77844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ObjCIvarDecl* Ivar = (*IVI); 7793b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar NewEntry->LayoutField(Ivar, i++, false, StructPacking, *this); 78044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 781453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // And synthesized ivars, if this is an implementation. 782453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 7839820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian // FIXME. Do we need to colltect twice? 7849820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian llvm::SmallVector<ObjCIvarDecl*, 16> Ivars; 7859820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian CollectSynthesizedIvars(D, Ivars); 7869820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian for (unsigned k = 0, e = Ivars.size(); k != e; ++k) 7879820074dd47d37681085e964cd3392ac0b3e67b9Fariborz Jahanian NewEntry->LayoutField(Ivars[k], i++, false, StructPacking, *this); 78818191886554407b4260c40165bc294c3ea732033Fariborz Jahanian } 78999eee3675e830ff367ae1fe35ce19fb49e7e4114Fariborz Jahanian 79044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 79144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 79244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 79344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 79444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 79544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 796b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 797b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 798b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 799b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 800b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 801b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 802b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 803b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 804b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 805b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 80688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 807464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 808464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 80998be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 8104b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 8114b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 8124bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 813464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 81488a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 815464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 8164bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 81788a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 81888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 81988a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 820464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 8214bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 822e267ff35b2f4e9d2b0d8bf24109d41cc7398b61bDouglas Gregor // FIXME: Avoid linear walk through the fields, if possible. 8236ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor NewEntry->InitializeLayout(std::distance(D->field_begin(*this), 8246ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor D->field_end(*this))); 82539ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 826464175bba1318bef7905122e9fda20cff926df78Chris Lattner 8273b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 8283b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 8293b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 8303b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 8314bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 8328b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 8338b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 8344bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 8354bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 8364bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 83744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor unsigned FieldIdx = 0; 8386ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor for (RecordDecl::field_iterator Field = D->field_begin(*this), 8396ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor FieldEnd = D->field_end(*this); 84044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; (void)++Field, ++FieldIdx) 84144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->LayoutField(*Field, FieldIdx, IsUnion, StructPacking, *this); 8424bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 8434bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 8444bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 8458b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->FinalizeLayout(); 8465d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 847464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 848464175bba1318bef7905122e9fda20cff926df78Chris Lattner 849a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 850a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 851a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 852a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 853f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 854f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 855f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 856f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 857b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 858b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 859b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 860b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 861b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr = QualType::GCNone; 862b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 863b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 864b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 865b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 866b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 867b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getAddressSpace() == 0 && 868b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 869b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttr = EQT->getObjCGCAttr(); 870b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 871b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 872f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 873b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Check if we've already instantiated this type. 874ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 875b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 876ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 877f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 878b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 879b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 880ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 881ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 882ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 883b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (!TypeNode->isCanonical()) { 884f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Canonical = getAddrSpaceQualType(CanT, AddressSpace); 885ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 886b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 887f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 888f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 889ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 890b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 891b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 892f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 893ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 894b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 895ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 896ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 897b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 898b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr) { 899d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 900b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 901d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 902d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 903b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 904b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 905b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 906b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 907b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned AddressSpace = 0; 908b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 909b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 910b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 911b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 912b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getObjCGCAttr() == QualType::GCNone && 913b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 914b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner AddressSpace = EQT->getAddressSpace(); 915b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 916b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 917d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 918d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check if we've already instantiated an gc qual'd type of this type. 919d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian llvm::FoldingSetNodeID ID; 920b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 921d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian void *InsertPos = 0; 922d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 923b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 924d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 925d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // If the base type isn't canonical, this won't be a canonical type either, 926d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // so fill in the canonical type field. 9275a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: Isn't this also not canonical if the base type is a array 9285a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // or pointer type? I can't find any documentation for objc_gc, though... 929d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType Canonical; 930d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (!T->isCanonical()) { 931b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Canonical = getObjCGCQualType(CanT, GCAttr); 932d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 933b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 934d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 935d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 936d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 937b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 938b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 939d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 940d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian Types.push_back(New); 941b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 942d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 943a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 9445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 9465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 9475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 9485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 9495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 9515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 9545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 9575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 9585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 960f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 9615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 964f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 966f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ComplexType *New = new (*this,8) ComplexType(T, Canonical); 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 9685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 9695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 972f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 973f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 974f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 975f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 976f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 977f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 978f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 979f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 9805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 9825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 9855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 9865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 9875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 9885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 9915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 9925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 9945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 9955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 997f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 9985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1001f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1003f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff PointerType *New = new (*this,8) PointerType(T, Canonical); 10045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 10055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 10065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10095618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 10105618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 10115618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 1012296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 1013296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 10145618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 10155618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 10165618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 10175618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 10185618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 10195618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 10205618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 10215618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 10225618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 1023296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 10245618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 10255618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 10265618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 10275618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 10285618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 10295618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 10305618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 10315618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1032f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10335618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 1034f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff BlockPointerType *New = new (*this,8) BlockPointerType(T, Canonical); 10355618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 10365618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 10375618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 10385618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 10395618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 10407c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 10417c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 10427c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getLValueReferenceType(QualType T) { 10435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 10445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 10455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 10475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 10507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 10515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 10527c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 10545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 10555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 10565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 10577c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getLValueReferenceType(getCanonicalType(T)); 10587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 10607c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 10617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 10627c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10637c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 10647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10657c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *New = new (*this,8) LValueReferenceType(T, Canonical); 10667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 10677c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 10687c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 10697c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 10707c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10717c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 10727c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 10737c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 10747c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 10757c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 10767c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 10777c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ReferenceType::Profile(ID, T); 10787c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 10807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 10817c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 10827c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 10837c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10847c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 10857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 10867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 10877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (!T->isCanonical()) { 10887c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getRValueReferenceType(getCanonicalType(T)); 10897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10917c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 10927c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1093f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10967c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *New = new (*this,8) RValueReferenceType(T, Canonical); 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 10987c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 10995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1102f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1103f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 1104f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian RedlQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) 1105f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl{ 1106f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1107f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1108f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1109f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1110f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1111f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1112f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1113f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1114f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1115f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1116f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1117f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1118f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 1119f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (!T->isCanonical()) { 1120f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1121f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1122f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1123f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1124f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1125f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1126f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1127f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff MemberPointerType *New = new (*this,8) MemberPointerType(T, Cls, Canonical); 1128f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1129f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1130f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1131f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1132f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1133fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 1134fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 1135fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 113638aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner const llvm::APInt &ArySizeIn, 1137c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1138c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 113938aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // Convert the array size into a canonical width matching the pointer size for 114038aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner // the target. 114138aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner llvm::APInt ArySize(ArySizeIn); 114238aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 114338aeec7299c48cb79523f7f89776fb258c84aeeaChris Lattner 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11450be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11487192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 11497192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 11505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 11515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 11535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 1156f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1157c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 11585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11597192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 11607192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1161f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1164566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ConstantArrayType *New = 1165f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 11667192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1171bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1172bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 1173c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 1174c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1175c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1176c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1177c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1178c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1179566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek VariableArrayType *New = 1180f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)VariableArrayType(EltTy,QualType(), NumElts, ASM, EltTypeQuals); 1181c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1182c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1183c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1184c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1185c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1186c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1187898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1188898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 1189898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// type. FIXME: We will need these to be uniqued, or at least 1190898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// comparable, at some point. 1191898574e7496ba8fd76290079d3a9d06954992734Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, Expr *NumElts, 1192898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 1193898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor unsigned EltTypeQuals) { 1194898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 1195898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1196898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1197898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Since we don't unique expressions, it isn't possible to unique 1198898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependently-sized array types. 1199898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1200566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek DependentSizedArrayType *New = 1201f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) DependentSizedArrayType(EltTy, QualType(), NumElts, 1202f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ASM, EltTypeQuals); 1203898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1204898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayTypes.push_back(New); 1205898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1206898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1207898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1208898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1209c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1210c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1211c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1212c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 12130be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1214c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1215c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 1216c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 1217c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1218c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1219c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1220c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1221c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1222c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1223c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1224c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 1225f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 12262bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1227c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1228c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1229c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1230c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1231f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12322bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1233c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1234f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff IncompleteArrayType *New = new (*this,8) IncompleteArrayType(EltTy, Canonical, 1235566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ASM, EltTypeQuals); 1236c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1237c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1238c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1239c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1240fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1241fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 124273322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 124373322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 124473322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1247f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 124873322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 12495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 12515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 125273322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 12535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 12555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 12565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 12585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 1261f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 12625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1265f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1267f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff VectorType *New = new (*this,8) VectorType(vecType, NumElts, Canonical); 12685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 12695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1273213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 127473322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1275213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 127673322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 127773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 1278f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1279213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 128073322924127c873c13101b705dd823f5539ffa5fSteve Naroff 128173322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 128273322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 1283213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 128473322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 128573322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 128673322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 128773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 128873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 128973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 129073322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 129173322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 1292213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 129373322924127c873c13101b705dd823f5539ffa5fSteve Naroff 129473322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 129573322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1296f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 129773322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 1298f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ExtVectorType *New = new (*this,8) ExtVectorType(vecType, NumElts, Canonical); 129973322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 130073322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 130173322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 130273322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 130373322924127c873c13101b705dd823f5539ffa5fSteve Naroff 130472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 13055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 130672564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getFunctionNoProtoType(QualType ResultTy) { 13075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 13095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 131072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType::Profile(ID, ResultTy); 13115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 131372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionNoProtoType *FT = 131472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 13155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 13165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 13185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 131972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy)); 13205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 132272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 132372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1324f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 132772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *New =new(*this,8)FunctionNoProtoType(ResultTy,Canonical); 13285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 132972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 13305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 13315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 13345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 133561710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1336971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1337bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl unsigned TypeQuals) { 13385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 13395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 13405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 134172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1342bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl TypeQuals); 13435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 134572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionProtoType *FTP = 134672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 13475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 13485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 13505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 13515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 13525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 13535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 13545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 13565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 13575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 13585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 13595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 13605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1361f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 1362bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl 1363f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 13645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 1365bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl isVariadic, TypeQuals); 1366bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl 13675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 136872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 136972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1370f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1372bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl 137372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1374bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl // for a variable size array (for parameter types) at the end of them. 137572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *FTP = 1376bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1377bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl NumArgs*sizeof(QualType), 8); 137872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1379bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl TypeQuals, Canonical); 13805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 138172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 13825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 13835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13852ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 13862ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 13874b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 13881e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 13892ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 13902ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 13911e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 13922ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1393fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1394fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 1395fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor } else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 13962ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 139749aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1398c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1399566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1400566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1401f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1402f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) RecordType(Record); 1403566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek } 1404566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1405566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1406566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1407f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1408f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) EnumType(Enum); 14094b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 141049aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 14112ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 141249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 14134b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 141449aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 14152ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 14162ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 14175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 14185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 14195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 14205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 14215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1422f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 142372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Decl->TypeForDecl = new(*this,8) TypedefType(Type::Typedef, Decl, Canonical); 14245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 14255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 14265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1428a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 14293536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 14303b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel DunbarQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl) { 14313536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 14323536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 14333b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel Dunbar ObjCInterfaceDecl *OID = const_cast<ObjCInterfaceDecl*>(Decl); 14343b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel Dunbar Decl->TypeForDecl = new(*this,8) ObjCInterfaceType(Type::ObjCInterface, OID); 14353536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 14363536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 14373536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 14383536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1439fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 1440fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// parameter with the given depth, index, and (optionally) name. 1441fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas GregorQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 1442fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1443fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 1444fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType::Profile(ID, Depth, Index, Name); 1445fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 1446fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType *TypeParm 1447fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1448fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1449fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1450fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1451fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1452fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (Name) 1453fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, Name, 1454fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor getTemplateTypeParmType(Depth, Index)); 1455fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else 1456fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index); 1457fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1458fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1459fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1460fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1461fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1462fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1463fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 146455f6b14230c94272efbbcdd89a92224c8db9f225Douglas GregorQualType 14657532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 14667532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 14677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 14687532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 146940808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor if (!Canon.isNull()) 147040808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor Canon = getCanonicalType(Canon); 1471fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 147255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor llvm::FoldingSetNodeID ID; 14737532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType::Profile(ID, Template, Args, NumArgs); 147440808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 147555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor void *InsertPos = 0; 14767532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType *Spec 14777532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 147855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 147955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (Spec) 148055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 148155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 14827532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *Mem = Allocate((sizeof(TemplateSpecializationType) + 148340808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 148440808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 8); 14857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor Spec = new (Mem) TemplateSpecializationType(Template, Args, NumArgs, Canon); 148655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 14877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 148855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 148955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 149055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 149155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 1492e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas GregorQualType 1493ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1494e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1495e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1496ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1497e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1498e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 1499e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameType *T 1500e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1501e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1502e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1503e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1504ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor T = new (*this) QualifiedNameType(NNS, NamedType, 1505ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1506e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1507e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1508e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1509e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1510e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1511d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1512d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1513d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1514d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1515d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1516d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1517d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1518d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1519d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1520d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1521d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1522d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1523d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1524d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1525d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 1526d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType *T 1527d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1528d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1529d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1530d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1531d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1532d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1533d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 1534d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1535d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1536d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 15371734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorQualType 15381734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorASTContext::getTypenameType(NestedNameSpecifier *NNS, 15391734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 15401734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 15411734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 15421734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15431734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 15441734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 15451734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 15461734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 15471734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 15481734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = CanonType->getAsTemplateSpecializationType(); 15491734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 15501734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 15511734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 15521734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 15531734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 15541734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15551734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 15561734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 15571734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15581734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 15591734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType *T 15601734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 15611734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 15621734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 15631734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15641734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 15651734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 15661734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 15671734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 15681734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 15691734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 157088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 157188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 157288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 157388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 15742e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 157588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 157688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 157788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 157888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 157988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 158088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 158188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 158288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 158388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 158488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 158588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 158688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 158788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 158888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 158988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1590065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1591065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1592a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1593a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 159488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 159588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 159688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 15974b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1598b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 15994b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 16004b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1601a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1602a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 16034b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 16044b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 16054b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1606a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1607f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 1608566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek 16094b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1610a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 16114b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 16124b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 16134b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 161488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 161588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 161662f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 1617c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 161888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 161988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 162088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1621c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 1622a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 1623c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1624c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 1625a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 162662f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 1627c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 1628c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1629c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 1630566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ObjCQualifiedIdType *QType = 1631f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedIdType(Protocols, NumProtocols); 1632c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 1633a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 1634c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 1635c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 1636c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 163772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 163872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 16399752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 16409752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 16419752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 164272564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 1643f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 164472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor TypeOfExprType *toe = new (*this,8) TypeOfExprType(tofExpr, Canonical); 16459752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 16469752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1647d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1648d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 16499752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 16509752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 16519752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 16529752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 16539752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1654d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1655f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 1656f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfType *tot = new (*this,8) TypeOfType(tofType, Canonical); 16579752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 16589752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1659d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1660d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 16615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 16635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1664d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 16652ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 16665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 16695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 16705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 16715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1672b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 16735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 167564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 167664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 167764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 167864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 167964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 168064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 168164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 168264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 168364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 168464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 168564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 168664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 168764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 168864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 16898b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 16908b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 16918b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1692b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 16938b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 16948b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1695e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1696e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1697e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1698e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 169977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 170077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 170177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 170277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 170377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 170477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 170577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 170677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1707c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1708c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1709c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1710c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1711c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1712c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1713c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1714c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1715c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1716c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1717c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1718c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1719c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1720c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1721c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1722c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1723c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1724c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1725c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1726c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1727c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1728c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1729c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1730898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 1731898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return getDependentSizedArrayType(NewEltTy, DSAT->getSizeExpr(), 1732898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1733898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier()); 1734898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1735c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1736c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1737c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1738c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1739c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1740c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 17417da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas GregorDecl *ASTContext::getCanonicalDecl(Decl *D) { 1742c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor if (!D) 1743c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor return 0; 1744c4ccf01c1223ea13efc5b6dd19ca4916af0daf6aDouglas Gregor 17457da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (TagDecl *Tag = dyn_cast<TagDecl>(D)) { 17467da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor QualType T = getTagDeclType(Tag); 17477da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return cast<TagDecl>(cast<TagType>(T.getTypePtr()->CanonicalType) 17487da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor ->getDecl()); 17497da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 17507da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 17517da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (ClassTemplateDecl *Template = dyn_cast<ClassTemplateDecl>(D)) { 17527da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Template->getPreviousDeclaration()) 17537da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Template = Template->getPreviousDeclaration(); 17547da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return Template; 17557da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 17567da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 17577da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (const FunctionDecl *Function = dyn_cast<FunctionDecl>(D)) { 17587da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Function->getPreviousDeclaration()) 17597da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Function = Function->getPreviousDeclaration(); 17607da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return const_cast<FunctionDecl *>(Function); 17617da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 17627da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 17637da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor if (const VarDecl *Var = dyn_cast<VarDecl>(D)) { 17647da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor while (Var->getPreviousDeclaration()) 17657da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor Var = Var->getPreviousDeclaration(); 17667da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return const_cast<VarDecl *>(Var); 17677da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor } 17687da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 17697da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return D; 17707da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor} 17717da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor 177225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 177325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 177425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 177525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 17767da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor return TemplateName(cast<TemplateDecl>(getCanonicalDecl(Template))); 177725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 177825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 177925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 178025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 178125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 178225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 1783d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 1784d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 1785d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (!NNS) 1786d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 1787d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1788d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 1789d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 1790d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 1791d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 1792d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 1793d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 1794d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1795d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 1796d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 1797d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 1798d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 1799d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1800d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 1801d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 1802d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 1803d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *Prefix = 0; 1804d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1805d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: This isn't the right check! 1806d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T->isDependentType()) 1807d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Prefix = getCanonicalNestedNameSpecifier(NNS->getPrefix()); 1808d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1809d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, Prefix, 1810d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 1811d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 1812d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1813d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1814d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 1815d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 1816d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 1817d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1818d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1819d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 1820d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 1821d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1822d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1823c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1824c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1825c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1826c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1827c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1828c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1829c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1830c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1831c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1832c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1833c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1834c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1835f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Make sure to look through type qualifiers (like ExtQuals) for the negative 1836c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1837c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1838c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1839c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1840c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1841c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1842c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1843c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1844c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1845c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1846c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1847c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1848c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1849c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1850c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1851c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1852f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Rip through ExtQualType's and typedefs to get to a concrete type. 1853c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1854f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(Ty)) { 1855f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian AddrSpace = EXTQT->getAddressSpace(); 1856f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Ty = EXTQT->getBaseType(); 1857c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1858c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1859c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1860c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1861c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1862c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1863c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1864c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1865c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1866c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1867c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1868c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1869c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1870c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1871c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1872c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1873c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1874c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1875c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1876c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1877f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian NewEltTy = getAddrSpaceQualType(NewEltTy, AddrSpace); 1878c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1879c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1880c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1881c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1882c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1883c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1884c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1885c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1886c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1887c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1888898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1889898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 1890898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 1891898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 1892898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 1893898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 1894898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1895898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier())); 1896c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1897c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1898c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1899c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1900c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 190177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 190277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 190377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1904e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1905e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1906e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1907e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1908e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1909e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1910e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1911c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1912c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1913c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1914c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1915c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1916c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1917e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1918c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1919e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1920e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1921c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1922e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1923e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1924d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel DunbarQualType ASTContext::getBaseElementType(const VariableArrayType *VAT) { 19256183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson QualType ElemTy = VAT->getElementType(); 19266183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 19276183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson if (const VariableArrayType *VAT = getAsVariableArrayType(ElemTy)) 19286183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return getBaseElementType(VAT); 19296183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 19306183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 19316183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 19326183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 19335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 19345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1935a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1936ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 19375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1938a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1939d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel Dunbar assert(T->getAsBuiltinType() && "getFloatingRank(): not a floating type"); 1940ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1941a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 19425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 19435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 19445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 19455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 19475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1948716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1949716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1950716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1951716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 19521361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 19531361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 19541361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 19551361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 19561361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1957716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1958f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1959f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1960f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1961f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1962f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 19631361b11066239ea15764a2a844405352d87296b3Chris Lattner 19641361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 19651361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 19661361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 19671361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 19681361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 19691361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 19705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 19725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19737cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 19747cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 19757cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 19767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1977a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1978a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1979a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1980a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1981a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1982fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1983a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1984fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1985fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 19865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 19875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1988f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1989f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1990f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1991f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 1992f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1993f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 1994f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman T = ET->getDecl()->getIntegerType().getTypePtr(); 1995f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 1996f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 1997f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 1998f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 1999f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 2000f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 2001f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 2002f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 2003f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 20047cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 20057cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 2006f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 20077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 20087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 20097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 20107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 2011f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 20127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 20137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 2014f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 20157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 20167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 2017f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 20187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 20197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 2020f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 20217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 20227cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 2023f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 20242df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 20252df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 20262df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 2027f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 2028f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 2029f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 20307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 20317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 20327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 20337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2034f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2035f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 20367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 20375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2038f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2039f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 20405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 20427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 20435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 20457cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 20467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 20477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 20487cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 20497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 20507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 20517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 20527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 20537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 20547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 20557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 20567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 20577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 20587cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 20597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 20607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 20617cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 20627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 20637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 20645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 20667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 20677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 20687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 20695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 207071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 207171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 207271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 207371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 20746c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 207539ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2076df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 2077f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 207871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 207971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 208071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 2081f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2082f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 208371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 2084f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 208571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 2086f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 208771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 208844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 208944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 209044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 209144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 209244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 20934afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 20946ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor CFConstantStringTypeDecl->addDecl(*this, Field); 209544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 209644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 209744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 209871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 209971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 210071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 21018467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2102b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2103319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 2104319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const RecordType *Rec = T->getAsRecordType(); 2105319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2106319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2107319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2108319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2109bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 2110bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 2111bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 211244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 211344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 211444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 211544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2116bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2117bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2118bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 2119bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2120bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2121bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2122bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 2123bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 212444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 212544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 212644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 212744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 212844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 21294afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 21306ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor ObjCFastEnumerationStateTypeDecl->addDecl(*this, Field); 213144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 2132bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 213344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2134bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 2135bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2136bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2137bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2138bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2139319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 2140319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const RecordType *Rec = T->getAsRecordType(); 2141319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 2142319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 2143319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2144319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2145e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 2146e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 21472d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 2148e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 2149bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 2150bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 215185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 215285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 215385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 215485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2155a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 215633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 2157a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 215898be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 215933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 216033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 216133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 216298be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 216333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 216433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 216598be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 216698be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 216733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 216833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2169a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 217033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 2171c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 2172e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2173c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2174ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 2175a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 217633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 21770d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 217833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 217933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 218033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 218133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 218298be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 218333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 218433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 218533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 218689951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 218789951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 218889951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 218989951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 2190a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 219133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 219233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 219333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 219433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 219533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 219633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 219733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 219833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 219989951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 220089951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 220189951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 22024306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian QualType PType = PVDecl->getOriginalType(); 22034306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 2204ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 2205ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 2206ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 2207bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 2208ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2209ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 2210ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2211ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 221233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 22134306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 22140d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 221533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 2216a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 221733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 221833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 221933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2220c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 222183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 2222c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 2223c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 222483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// Property attributes are stored as a comma-delimited C string. The simple 222583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// attributes readonly and bycopy are encoded as single characters. The 222683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// parametrized attributes, getter=name, setter=name, and ivar=name, are 222783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// encoded as single characters, followed by an identifier. Property types 222883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// are also encoded as a parametrized attribute. The characters used to encode 222983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 223083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 223183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 223283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 223383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 223483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 223583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 223683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 223783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 223883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 223983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 224083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 224183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 224283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 224383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 224483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 2245c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 2246c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 2247e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2248c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 2249c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 2250c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 2251c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2252c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 2253c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 2254c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 2255c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 2256c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 2257653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i = CID->propimpl_begin(*this), e = CID->propimpl_end(*this); 2258653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2259c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2260c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2261c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2262c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2263c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2264c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2265c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2266c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2267c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2268c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 226961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 2270c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 2271653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i = OID->propimpl_begin(*this), e = OID->propimpl_end(*this); 2272653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2273c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2274c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2275c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2276c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2277c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2278c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2279c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2280c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2281c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2282c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2283c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2284c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2285c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2286c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 2287c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2288c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 2289090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 2290090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 2291153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 2292090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 2293090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 2294c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2295c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 2296c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 2297c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2298c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 2299c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 2300c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 2301c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 2302c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2303c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2304c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2305c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 2306c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 2307c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 2308c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 2309c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2310090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 2311090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 2312090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian 2313c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 2314c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 2315077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 2316c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2317c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2318c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 2319c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 2320077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 2321c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2322c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2323c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 2324c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 2325c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 232639f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 2327c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2328c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2329c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 2330c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 2331c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2332a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 2333a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// Another legacy compatibility encoding: 32-bit longs are encoded as 2334c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian/// 'l' or 'L' , but not always. For typedefs, we need to use 2335a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 2336a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 2337a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 2338a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(PointeeTy.getTypePtr())) { 2339a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (const BuiltinType *BT = PointeeTy->getAsBuiltinType()) { 2340c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 2341c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2342a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 2343c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian else 2344c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 2345c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2346a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 2347a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2348a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2349a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 2350a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 23517d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 2352153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 235382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 235482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 235582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 235682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 23575b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian getObjCEncodingForTypeImpl(T, S, true, true, Field, 23585b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 235982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 236082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 23618b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanianstatic void EncodeBitField(const ASTContext *Context, std::string& S, 2362153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 23638b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 23648b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 23658b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 23669a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 23678b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 23688b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 23698b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 23708b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 237182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 237282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 237382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 2374153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 2375090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 23766ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 2377e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 237843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD && FD->isBitField()) { 23798b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 238085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 238143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else { 238243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian char encoding; 238343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian switch (BT->getKind()) { 238443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian default: assert(0 && "Unhandled builtin type kind"); 238543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Void: encoding = 'v'; break; 238643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Bool: encoding = 'B'; break; 238743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_U: 238843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UChar: encoding = 'C'; break; 238943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UShort: encoding = 'S'; break; 239043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UInt: encoding = 'I'; break; 239172696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::ULong: 239272696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 239372696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 239472696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 23952df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 239643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::ULongLong: encoding = 'Q'; break; 239743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_S: 239843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::SChar: encoding = 'c'; break; 239943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Short: encoding = 's'; break; 240043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Int: encoding = 'i'; break; 240172696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::Long: 240272696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 240372696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 240472696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 240543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongLong: encoding = 'q'; break; 24062df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 240743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Float: encoding = 'f'; break; 240843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Double: encoding = 'd'; break; 240943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongDouble: encoding = 'd'; break; 241043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 241185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 241243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += encoding; 241343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 2414c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson } else if (const ComplexType *CT = T->getAsComplexType()) { 2415c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 2416c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 2417c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 2418c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson } else if (T->isObjCQualifiedIdType()) { 2419090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(getObjCIdType(), S, 2420090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandPointedToStructures, 2421090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandStructures, FD); 2422090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 2423090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Note that we do extended encoding of protocol qualifer list 2424090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Only when doing ivar or property encoding. 2425090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian const ObjCQualifiedIdType *QIDT = T->getAsObjCQualifiedIdType(); 2426090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2427090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian for (unsigned i =0; i < QIDT->getNumProtocols(); i++) { 2428090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCProtocolDecl *Proto = QIDT->getProtocols(i); 2429090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2430090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += Proto->getNameAsString(); 2431090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2432090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2433090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2434090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2435090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian return; 2436c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 2437c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 243885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 2439a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 2440a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 2441a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 2442a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 2443a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Also, do not emit the 'r' for anything but the outermost type! 2444a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(T.getTypePtr())) { 2445a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 2446a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2447a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2448a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2449a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2450a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian else if (OutermostType) { 2451a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 2452a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian while (P->getAsPointerType()) 2453a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian P = P->getAsPointerType()->getPointeeType(); 2454a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 2455a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2456a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2457a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2458a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2459a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 2460a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 2461a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 2462a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 2463a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 2464a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 2465a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 2466a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 2467a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 2468a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2469a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2470389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(PointeeTy)) { 2471c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 2472c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 2473c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian } 2474c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian else if (PointeeTy->isObjCInterfaceType()) { 2475bb99bdec7d3e704485baffae85938d24d35f0e0fFariborz Jahanian if (!EncodingProperty && 2476225dfd7d6b0ed14e6b7ad8dc121161b9f34ecfceFariborz Jahanian isa<TypedefType>(PointeeTy.getTypePtr())) { 24773e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // Another historical/compatibility reason. 24783e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // We encode the underlying type which comes out as 24793e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // {...}; 24803e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian S += '^'; 24813e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 24823e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian false, ExpandPointedToStructures, 24833e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian NULL); 24843e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian return; 24853e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian } 2486c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian S += '@'; 2487090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 248886f938b3d4a79fb9c337d351c8f3e5f1ff18f1b6Fariborz Jahanian const ObjCInterfaceType *OIT = 248986f938b3d4a79fb9c337d351c8f3e5f1ff18f1b6Fariborz Jahanian PointeeTy.getUnqualifiedType()->getAsObjCInterfaceType(); 2490090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCInterfaceDecl *OI = OIT->getDecl(); 2491adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2492adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += OI->getNameAsCString(); 2493090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian for (unsigned i =0; i < OIT->getNumProtocols(); i++) { 2494090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCProtocolDecl *Proto = OIT->getProtocol(i); 2495090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2496090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += Proto->getNameAsString(); 2497090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2498090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2499adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2500adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian } 2501c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian return; 2502389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff } else if (isObjCClassStructType(PointeeTy)) { 25038baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 25048baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2505a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 25068baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 25078baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2508c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 250985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 251085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 251185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 251285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 2513e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 251485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 251585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 251685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 251785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 251885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 251985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 2520a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 2521a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 2522a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 2523d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar false, ExpandPointedToStructures, 252443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 2525c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 2526c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 2527c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 2528559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 2529559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 2530559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 2531559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 2532559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2533559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2534559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 2535559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 253685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2537559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 2538559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 2539559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 2540559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 2541559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 2542559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 2543559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 254485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2545559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2546559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2547559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 2548559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 2549c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 2550c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 25516de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 255282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 2553d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 2554502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 2555502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 2556502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 2557502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 2558502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 2559502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 25600d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 25617d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 25626ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor for (RecordDecl::field_iterator Field = RDecl->field_begin(*this), 25636ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor FieldEnd = RDecl->field_end(*this); 256444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 256543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 2566d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 256744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 2568d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 2569d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 2570d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 2571d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 257243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 257343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 257443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 2575d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 2576a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 2577a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 2578a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(qt, S, false, true, 257943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 2580d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 25817d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 25826de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 2583d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 25845e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 25858b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 25868b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 25878b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 25888b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 2589485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 259021a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 259143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } else if (T->isObjCInterfaceType()) { 259243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 259343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 259443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 259543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 259643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 259743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 2598f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 259943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 2600f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 260143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 260243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 260343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 260443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 260543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 260643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 260743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 260843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 260943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 261043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 2611f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 261285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 261385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2614a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 2615ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 2616ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 2617ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 2618ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 2619ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 2620ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 2621ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 2622ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 2623ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 2624ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 2625ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 2626ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 2627ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 2628ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 2629ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 2630b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 2631b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 2632b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 2633b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2634b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 2635b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 2636b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2637319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCIdType(QualType T) 26387e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 2639319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCIdType = T; 2640319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2641319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2642319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2643319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2644319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2645319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 26467e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 26477e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 26487e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2649c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2650c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2651c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 26527e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2653c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2654c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2655c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 26567e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 26577e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 26587e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 2659319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCSelType(QualType T) 2660b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 2661319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCSelType = T; 2662319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2663319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2664319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2665319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2666319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 2667b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2668b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 2669b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2670c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2671c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2672b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2673c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2674c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2675b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 2676b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 2677b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2678a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 2679390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 2680a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 2681390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 2682390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 2683319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCClassType(QualType T) 26848baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 2685319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCClassType = T; 2686319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2687319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2688319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2689319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2690319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 26918baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 26928baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 26938baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 26948baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 26958baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 26968baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 26978baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 26988baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 26998baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 2700a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 2701a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 27022198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 27032198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 2704a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 27052198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 27062198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 27077532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a qualified 27087532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c std::vector. 27097532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 27107532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool TemplateKeyword, 27117532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateDecl *Template) { 27127532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 27137532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 27147532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27157532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 27167532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName *QTN = 27177532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 27187532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (!QTN) { 27197532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 27207532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 27217532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 27227532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27237532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 27247532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 27257532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27267532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 27277532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 27287532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 27297532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 27307532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(NNS->isDependent() && "Nested name specifier must be dependent"); 27317532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27327532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 27337532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 27347532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27357532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 27367532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 27377532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 27387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27397532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 27407532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 27417532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27427532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 27437532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 27447532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 27457532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 27467532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 27477532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 27487532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 27497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 27507532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 27517532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 27527532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 27537532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 2754b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 2755d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 2756d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 2757d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 2758b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 2759b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 2760b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 2761b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 2762b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 2763b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 2764b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 2765b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 2766b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 2767b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 2768b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 2769b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 2770b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 2771b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 2772b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 2773b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2774b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2775b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 2776b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2777b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2778fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 2779fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 2780fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 2781fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 2782fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 2783fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 2784fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 2785fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TD->getAttr<ObjCNSObjectAttr>()) 2786fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2787fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 2788fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return false; 2789fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 2790fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2791b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 2792b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 2793b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 2794b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 2795b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 2796d461777e23204fe8c480302d8ff76f5847605da6Steve Naroff if (Ty->isObjCQualifiedIdType()) 2797b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2798b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 27996ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // Blocks are objects. 28006ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff if (Ty->isBlockPointerType()) 28016ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff return true; 28026ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff 28036ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // All other object types are pointers. 280416ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner const PointerType *PT = Ty->getAsPointerType(); 280516ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (PT == 0) 2806b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 2807b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2808b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 280916ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (PT->getPointeeType()->isObjCInterfaceType() || 281016ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // If is has NSObject attribute, OK as well. 281116ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner isObjCNSObjectType(Ty)) 2812fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2813fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 281416ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // Check to see if this is 'id' or 'Class', both of which are typedefs for 281516ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // pointer types. This looks for the typedef specifically, not for the 281616ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // underlying type. Iteratively strip off typedefs so that we can handle 281716ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // typedefs of typedefs. 281816ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner while (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 281916ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (Ty.getUnqualifiedType() == getObjCIdType() || 282016ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner Ty.getUnqualifiedType() == getObjCClassType()) 282116ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner return true; 282216ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner 282316ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner Ty = TDT->getDecl()->getUnderlyingType(); 282416ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner } 282516ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner 282616ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner return false; 2827b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 2828b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 28294fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 28304fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 28314fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 28324fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz JahanianQualType::GCAttrTypes ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 2833b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttrs = QualType::GCNone; 28344fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 28354fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 2836b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 28374fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 2838a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // (or pointers to them) be treated as though they were declared 2839a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 2840a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (GCAttrs == QualType::GCNone) { 2841a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (isObjCObjectPointerType(Ty)) 2842a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian GCAttrs = QualType::Strong; 2843a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 2844a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian return getObjCGCAttrKind(Ty->getAsPointerType()->getPointeeType()); 2845a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 2846c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 2847c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 2848c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian else if (!isObjCObjectPointerType(Ty) && !Ty->isPointerType()) 2849c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian return QualType::GCNone; 28504fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 2851b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 28524fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 28534fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 28546ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 28556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 28566ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 2857770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 28581c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff/// typesAreBlockCompatible - This routine is called when comparing two 2859dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// block types. Types must be strictly compatible here. For example, 2860dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// C unfortunately doesn't produce an error for the following: 2861dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2862dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*emptyArgFunc)(); 2863dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*intArgList)(int) = emptyArgFunc; 2864dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2865dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// For blocks, we will produce an error for the following (similar to C++): 2866dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2867dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^emptyArgBlock)(); 2868dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^intArgBlock)(int) = emptyArgBlock; 2869dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2870dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// FIXME: When the dust settles on this integration, fold this into mergeTypes. 2871dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 28721c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroffbool ASTContext::typesAreBlockCompatible(QualType lhs, QualType rhs) { 2873c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *lbase = lhs->getAsFunctionType(); 2874c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *rbase = rhs->getAsFunctionType(); 287572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 287672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 2877aab0f7a749e939d1d485a436f57ae56d14ba3016Mike Stump if (lproto && rproto == 0) 2878aab0f7a749e939d1d485a436f57ae56d14ba3016Mike Stump return false; 2879aab0f7a749e939d1d485a436f57ae56d14ba3016Mike Stump return !mergeTypes(lhs, rhs).isNull(); 28801c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff} 28811c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff 28826ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 28836ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 28846ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 28856ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 28866ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 28876ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 288861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 28896ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 28906ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 28913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 28926ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 28936ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 28946ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 28953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 28963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 28976ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 28986ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 28996ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 29006ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 29016ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 29026ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 29036ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 29046ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 29056ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 29066ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 29076ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 29086ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 29096ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 29106ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 29116ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 29126ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 29136ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 29146ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 29156ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 291691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // All LHS protocols must have a presence on the RHS. 291791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff assert(LHSP->qual_begin() != LHSP->qual_end() && "Empty LHS protocol list?"); 291891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 291991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(), 292091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPE = LHSP->qual_end(); 292191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 292291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 292391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 292491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 292591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 292691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(), 292791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSPE = RHSP->qual_end(); 292891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff !RHSImplementsProtocol && (RHSPI != RHSPE); RHSPI++) { 292991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) 293091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 293191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 293291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 293391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 293491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 293591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 293691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 293791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 29386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 29396ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 2940389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 2941389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 2942389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const PointerType *LHSPT = LHS->getAsPointerType(); 2943389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const PointerType *RHSPT = RHS->getAsPointerType(); 2944389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2945389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (!LHSPT || !RHSPT) 2946389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 2947389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2948389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff QualType lhptee = LHSPT->getPointeeType(); 2949389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff QualType rhptee = RHSPT->getPointeeType(); 2950389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const ObjCInterfaceType* LHSIface = lhptee->getAsObjCInterfaceType(); 2951389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const ObjCInterfaceType* RHSIface = rhptee->getAsObjCInterfaceType(); 2952389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // ID acts sort of like void* for ObjC interfaces 2953389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (LHSIface && isObjCIdStructType(rhptee)) 2954389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return true; 2955389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (RHSIface && isObjCIdStructType(lhptee)) 2956389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return true; 2957389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (!LHSIface || !RHSIface) 2958389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 2959389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return canAssignObjCInterfaces(LHSIface, RHSIface) || 2960389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff canAssignObjCInterfaces(RHSIface, LHSIface); 2961389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 2962389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2963ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 2964ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 2965ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 2966ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 29673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 29683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 29693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 29703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29713d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 29723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 29733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 297472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 297572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 29763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 29773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 29783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 29803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 29813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 298261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 298361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 298461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 298561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 29863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 29883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 29893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 29903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 29923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 29933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 29943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 29963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 29973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 29983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29997fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 30007fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 30017fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 30023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 30033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 30043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 30053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 30063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 30073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 30083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 30093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 301061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 301161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 301261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 301361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 30143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 30153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 30163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 30173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 30187fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 30193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 30203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 30223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 30233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 302472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 30253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 30263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 30273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 30283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 30293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 30303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 30313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 30323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 30333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 30343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 30353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 30363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 30373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 30383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 30393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 30413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 30423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 30437fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 30447fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 30453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 30463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 30483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 304972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return getFunctionNoProtoType(retType); 30503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 30513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30523d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 305343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 305443d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 305543d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 30567c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 30577c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 30583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 30593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 30607c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 30617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 30623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 3063c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 30643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 3065c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 30663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 30683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 30693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3070f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 30713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 30723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 30733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 30755a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Note that we handle extended qualifiers later, in the 30765a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // case for ExtQualType. 30775a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers()) 30783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 30793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3080c8d2e77288c07a69cabb755a4ab9feeb7b5a1287Fariborz Jahanian Type::TypeClass LHSClass = LHSCan.getUnqualifiedType()->getTypeClass(); 3081c8d2e77288c07a69cabb755a4ab9feeb7b5a1287Fariborz Jahanian Type::TypeClass RHSClass = RHSCan.getUnqualifiedType()->getTypeClass(); 3082f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 30831adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 30841adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 30851adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 30861adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 30874c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 30884c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 3089a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 3090a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 3091a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 3092a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 3093a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 3094213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 3095213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 3096213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 3097ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 3098b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 3099b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 3100b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 31013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 31024e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 31034e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 31045fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 31055fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 3106c8d2e77288c07a69cabb755a4ab9feeb7b5a1287Fariborz Jahanian 3107d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff // 'id' and 'Class' act sort of like void* for ObjC interfaces 3108d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (LHSIface && (isObjCIdStructType(RHS) || isObjCClassStructType(RHS))) 31095fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 3110d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (RHSIface && (isObjCIdStructType(LHS) || isObjCClassStructType(LHS))) 31115fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return RHS; 31125fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 3113bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // ID is compatible with all qualified id types. 3114bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (LHS->isObjCQualifiedIdType()) { 3115bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) { 3116bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 3117d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (isObjCIdStructType(pType) || isObjCClassStructType(pType)) 3118bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 3119bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 3120bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 3121bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 3122bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 3123bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 3124bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 3125bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3126bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3127bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (RHS->isObjCQualifiedIdType()) { 3128bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) { 3129bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 3130d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (isObjCIdStructType(pType) || isObjCClassStructType(pType)) 3131bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 3132bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 3133bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 3134bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 3135bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 3136bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 3137bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 3138bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3139bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 31401adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 31411adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 31423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 31433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 31443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 3145bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 31463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 31473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 31483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 3149bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 31501adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 31513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 3152ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 31533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 31544a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 31551adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 315672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 315772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 315872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 315972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 316072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 316172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 316272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 316372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 31647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 31657c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 316672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 316772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 316872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 316972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 317072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 317172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 317272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 317372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 317472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 317572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 317672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 317772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 31781adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 31793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 31803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 31813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 31823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 31833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 31843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 318561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 318661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 318761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 318861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 31893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 31903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 3191c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 3192c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 3193c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 3194c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 3195c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 3196c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 3197c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 3198c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 3199c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 3200c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 3201c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 3202c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 3203c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 32041adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 32053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 32063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 32073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 32083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 32093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 32103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 32113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 32123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 32133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 32143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 321561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 321661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 321761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 321861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 32193bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 32203bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 32213bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 32223bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 32233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 32243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 322561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 322661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 322761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 322861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 32293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 32303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 32313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 32323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 32333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 32343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 32353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 32363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 32373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 32383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 32393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 32403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 32413bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 32423bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 324361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(),0); 32443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 32451adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 32463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 324772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 324872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 32493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 3250389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(LHS) && isObjCClassStructType(RHS)) return LHS; 3251389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCClassStructType(LHS) && isObjCIdStructType(RHS)) return LHS; 32523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 32531adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 32543cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 32553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 325664cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 325764cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 325864cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 32593cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 32605a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 32613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 32623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 326361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 326461490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 32655fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 32665a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 32675a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 32685fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 32695fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 32705fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 32715fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 32725fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 32735fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 32743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 327561490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 3276bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff case Type::ObjCQualifiedId: 3277bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Distinct qualified id's are not compatible. 3278bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 32795a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 32805a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 32815a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 32825a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::ExtQual: 32835a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: ExtQual types can be compatible even if they're not 32845a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // identical! 32855a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 32865a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // First attempt at an implementation, but I'm not really sure it's 32875a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // right... 32885a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#if 0 32895a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* LQual = cast<ExtQualType>(LHSCan); 32905a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* RQual = cast<ExtQualType>(RHSCan); 32915a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LQual->getAddressSpace() != RQual->getAddressSpace() || 32925a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LQual->getObjCGCAttr() != RQual->getObjCGCAttr()) 32935a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 32945a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman QualType LHSBase, RHSBase, ResultType, ResCanUnqual; 32955a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LHSBase = QualType(LQual->getBaseType(), 0); 32965a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman RHSBase = QualType(RQual->getBaseType(), 0); 32975a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = mergeTypes(LHSBase, RHSBase); 32985a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (ResultType.isNull()) return QualType(); 32995a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResCanUnqual = getCanonicalType(ResultType).getUnqualifiedType(); 33005a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getUnqualifiedType() == ResCanUnqual) 33015a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return LHS; 33025a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (RHSCan.getUnqualifiedType() == ResCanUnqual) 33035a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return RHS; 33045a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getAddrSpaceQualType(ResultType, LQual->getAddressSpace()); 33055a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getObjCGCQualType(ResultType, LQual->getObjCGCAttr()); 33065a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType.setCVRQualifiers(LHSCan.getCVRQualifiers()); 33075a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return ResultType; 33085a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#endif 33097532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 33107532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 33117532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 33127532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 3313ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 331472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 331572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 3316ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 33177192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 33185426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 3319ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 3320ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 332188054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 3322ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 3323ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 3324ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 3325f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 3326f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 3327f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 3328f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 3329ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 3330ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3331ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 3332ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 3333ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 3334ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 3335ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 3336ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 3337ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 3338ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 3339ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 3340ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 3341ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 3342ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 3343ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 3344ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 3345ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 3346ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 3347ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 3348ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 3349ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 33502df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 33512df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 3352ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 3353ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 3354ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 3355ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 3356ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3357ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 33582cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 33592cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 33602cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 3361