ASTContext.cpp revision 6e8ed16ffef02b82995a90bdcf10ffff7d63839a
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 688b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// getInterfaceLayoutImpl - Get or compute information about the 689b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// layout of the given interface. 690b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// 691b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// \param Impl - If given, also include the layout of the interface's 692b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar/// implementation. This may differ by including synthesized ivars. 69344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 694b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 695b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar const ObjCImplementationDecl *Impl) { 696532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar assert(!D->isForwardDecl() && "Invalid interface decl!"); 697532d4daa038d972240138e2fd6e1122517340833Daniel Dunbar 69844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 699d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCContainerDecl *Key = 700d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 701d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 702d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar return *Entry; 70344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 704453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar unsigned FieldCount = D->ivar_size(); 705453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // Add in synthesized ivar count if laying out an implementation. 706453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 707453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar for (ObjCInterfaceDecl::prop_iterator I = D->prop_begin(*this), 708453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar E = D->prop_end(*this); I != E; ++I) 709453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if ((*I)->getPropertyIvarDecl()) 710453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar ++FieldCount; 711453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 712d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar // If there aren't any sythesized ivars then reuse the interface 713453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entry. Note we can't cache this because we simply free all 714453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // entries later; however we shouldn't look up implementations 715453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // frequently. 716453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (FieldCount == D->ivar_size()) 717453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar return getObjCLayout(D, 0); 718453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 719453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar 7206a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 7216a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 7226a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 7236a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 724d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar 725913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar // We start laying out ivars not at the end of the superclass 726913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar // structure, but at the next byte following the last field. 727913af35741b55fe854bc26c9dddc312cd991e24dDaniel Dunbar uint64_t Size = llvm::RoundUpToAlignment(SL.NextOffset, 8); 728d6884a0b90091a063478ec7fa31f6d76c94e4917Daniel Dunbar 729d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCLayouts[Key] = NewEntry = new ASTRecordLayout(Size, Alignment); 7306a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 7316a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 732d8fd6ff0ea47ba63f836d0f4e6a1bee49863f64aDaniel Dunbar ObjCLayouts[Key] = NewEntry = new ASTRecordLayout(); 7336a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 7346a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 73544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 7363b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 7373b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 7383b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 73944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 74044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 74144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 74244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 74344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 74444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 74544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 74644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel for (ObjCInterfaceDecl::ivar_iterator IVI = D->ivar_begin(), 74744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel IVE = D->ivar_end(); IVI != IVE; ++IVI) { 74844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ObjCIvarDecl* Ivar = (*IVI); 7493b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar NewEntry->LayoutField(Ivar, i++, false, StructPacking, *this); 75044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 751453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar // And synthesized ivars, if this is an implementation. 752453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (Impl) { 753453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar for (ObjCInterfaceDecl::prop_iterator I = D->prop_begin(*this), 754453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar E = D->prop_end(*this); I != E; ++I) { 755453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 756453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar NewEntry->LayoutField(Ivar, i++, false, StructPacking, *this); 757453addbaea98f9678e2f9858057722a028f1ae3cDaniel Dunbar } 75818191886554407b4260c40165bc294c3ea732033Fariborz Jahanian } 75999eee3675e830ff367ae1fe35ce19fb49e7e4114Fariborz Jahanian 76044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 76144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 76244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 76344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 76444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 76544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 766b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 767b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 768b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D, 0); 769b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 770b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 771b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbarconst ASTRecordLayout & 772b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel DunbarASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 773b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar return getObjCLayout(D->getClassInterface(), D); 774b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar} 775b2dbbb99e12806eaaf53b7ccabc32f42b5719443Daniel Dunbar 77688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 777464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 778464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 77998be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 7804b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 7814b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 7824bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 783464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 78488a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 785464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 7864bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 78788a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 78888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 78988a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 790464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 7914bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 792e267ff35b2f4e9d2b0d8bf24109d41cc7398b61bDouglas Gregor // FIXME: Avoid linear walk through the fields, if possible. 7936ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor NewEntry->InitializeLayout(std::distance(D->field_begin(*this), 7946ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor D->field_end(*this))); 79539ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 796464175bba1318bef7905122e9fda20cff926df78Chris Lattner 7973b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 7983b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 7993b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 8003b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 8014bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 8028b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 8038b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 8044bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 8054bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 8064bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 80744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor unsigned FieldIdx = 0; 8086ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor for (RecordDecl::field_iterator Field = D->field_begin(*this), 8096ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor FieldEnd = D->field_end(*this); 81044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; (void)++Field, ++FieldIdx) 81144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->LayoutField(*Field, FieldIdx, IsUnion, StructPacking, *this); 8124bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 8134bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 8144bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 8158b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->FinalizeLayout(); 8165d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 817464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 818464175bba1318bef7905122e9fda20cff926df78Chris Lattner 819a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 820a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 821a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 822a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 823f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 824f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 825f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 826f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 827b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 828b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 829b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 830b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 831b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr = QualType::GCNone; 832b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 833b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 834b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 835b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 836b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 837b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getAddressSpace() == 0 && 838b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 839b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttr = EQT->getObjCGCAttr(); 840b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 841b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 842f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 843b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Check if we've already instantiated this type. 844ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 845b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 846ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 847f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 848b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 849b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 850ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 851ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 852ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 853b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (!TypeNode->isCanonical()) { 854f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Canonical = getAddrSpaceQualType(CanT, AddressSpace); 855ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 856b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 857f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 858f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 859ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 860b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 861b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 862f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 863ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 864b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 865ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 866ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 867b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 868b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr) { 869d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 870b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 871d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 872d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 873b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 874b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 875b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 876b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 877b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned AddressSpace = 0; 878b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 879b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 880b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 881b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 882b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getObjCGCAttr() == QualType::GCNone && 883b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 884b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner AddressSpace = EQT->getAddressSpace(); 885b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 886b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 887d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 888d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check if we've already instantiated an gc qual'd type of this type. 889d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian llvm::FoldingSetNodeID ID; 890b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 891d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian void *InsertPos = 0; 892d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 893b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 894d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 895d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // If the base type isn't canonical, this won't be a canonical type either, 896d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // so fill in the canonical type field. 8975a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: Isn't this also not canonical if the base type is a array 8985a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // or pointer type? I can't find any documentation for objc_gc, though... 899d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType Canonical; 900d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (!T->isCanonical()) { 901b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Canonical = getObjCGCQualType(CanT, GCAttr); 902d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 903b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 904d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 905d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 906d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 907b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 908b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 909d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 910d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian Types.push_back(New); 911b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 912d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 913a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 9145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 9175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 9185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 9195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 9205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 9215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 9255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 9275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 930f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 934f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 936f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ComplexType *New = new (*this,8) ComplexType(T, Canonical); 9375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 9385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 9395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 942f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 943f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 944f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 945f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 946f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 947f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 948f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 949f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 9525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 9535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 9545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 9565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 9575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 9585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 9615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 9625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 9645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 9655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 967f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 9685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 971f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 973f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff PointerType *New = new (*this,8) PointerType(T, Canonical); 9745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 9765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9795618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 9805618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 9815618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 982296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 983296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 9845618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 9855618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 9865618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 9875618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 9885618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 9895618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 9905618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 9915618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 9925618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 993296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 9945618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 9955618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 9965618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 9975618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 9985618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 9995618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 10005618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 10015618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1002f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10035618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 1004f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff BlockPointerType *New = new (*this,8) BlockPointerType(T, Canonical); 10055618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 10065618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 10075618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 10085618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 10095618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 10107c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 10117c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 10127c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getLValueReferenceType(QualType T) { 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10197c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 10207c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 10227c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 10265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 10277c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getLValueReferenceType(getCanonicalType(T)); 10287c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10297c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 10307c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 10317c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 10327c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10337c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 10347c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10357c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *New = new (*this,8) LValueReferenceType(T, Canonical); 10367c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 10377c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 10387c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 10397c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 10407c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10417c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 10427c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 10437c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 10447c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 10457c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 10467c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 10477c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ReferenceType::Profile(ID, T); 10487c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 10507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 10517c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 10527c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 10537c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10547c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 10557c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 10567c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 10577c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (!T->isCanonical()) { 10587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getRValueReferenceType(getCanonicalType(T)); 10597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 10627c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1063f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *New = new (*this,8) RValueReferenceType(T, Canonical); 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 10687c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 10705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1072f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1073f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 1074f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian RedlQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) 1075f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl{ 1076f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1077f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1078f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1079f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1080f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1081f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1082f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1083f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1084f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1085f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1086f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1087f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1088f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 1089f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (!T->isCanonical()) { 1090f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1091f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1092f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1093f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1094f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1095f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1096f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1097f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff MemberPointerType *New = new (*this,8) MemberPointerType(T, Cls, Canonical); 1098f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1099f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1100f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1101f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1102f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1103fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 1104fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 1105fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 1106c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff const llvm::APInt &ArySize, 1107c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1108c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 11095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 11100be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 11115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11137192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 11147192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 11155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 11165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 11185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 1121f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1122c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11247192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 11257192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1126f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1129566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ConstantArrayType *New = 1130f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 11317192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 11325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1136bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1137bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 1138c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 1139c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1140c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1141c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1142c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1143c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1144566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek VariableArrayType *New = 1145f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)VariableArrayType(EltTy,QualType(), NumElts, ASM, EltTypeQuals); 1146c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1147c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1148c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1149c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1150c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1151c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1152898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1153898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 1154898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// type. FIXME: We will need these to be uniqued, or at least 1155898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// comparable, at some point. 1156898574e7496ba8fd76290079d3a9d06954992734Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, Expr *NumElts, 1157898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 1158898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor unsigned EltTypeQuals) { 1159898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 1160898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1161898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1162898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Since we don't unique expressions, it isn't possible to unique 1163898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependently-sized array types. 1164898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1165566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek DependentSizedArrayType *New = 1166f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) DependentSizedArrayType(EltTy, QualType(), NumElts, 1167f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ASM, EltTypeQuals); 1168898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1169898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayTypes.push_back(New); 1170898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1171898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1172898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1173898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1174c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1175c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1176c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1177c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 11780be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1179c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1180c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 1181c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 1182c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1183c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1184c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1185c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1186c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1187c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1188c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1189c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 1190f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 11912bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1192c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1193c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1194c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1195c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1196f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11972bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1198c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1199f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff IncompleteArrayType *New = new (*this,8) IncompleteArrayType(EltTy, Canonical, 1200566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ASM, EltTypeQuals); 1201c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1202c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1203c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1204c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1205fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1206fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 120773322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 120873322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 120973322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 12115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1212f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 121373322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 12165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 121773322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 12205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 12215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 12235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 12245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 1226f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 12275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 12295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1230f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1232f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff VectorType *New = new (*this,8) VectorType(vecType, NumElts, Canonical); 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1238213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 123973322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1240213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 124173322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 124273322924127c873c13101b705dd823f5539ffa5fSteve Naroff 1243f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1244213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 124573322924127c873c13101b705dd823f5539ffa5fSteve Naroff 124673322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 124773322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 1248213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 124973322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 125073322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 125173322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 125273322924127c873c13101b705dd823f5539ffa5fSteve Naroff 125373322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 125473322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 125573322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 125673322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 1257213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 125873322924127c873c13101b705dd823f5539ffa5fSteve Naroff 125973322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 126073322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1261f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 126273322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 1263f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ExtVectorType *New = new (*this,8) ExtVectorType(vecType, NumElts, Canonical); 126473322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 126573322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 126673322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 126773322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 126873322924127c873c13101b705dd823f5539ffa5fSteve Naroff 126972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 12705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 127172564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getFunctionNoProtoType(QualType ResultTy) { 12725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 12735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 127572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType::Profile(ID, ResultTy); 12765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 127872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionNoProtoType *FT = 127972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 12805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 12815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 128472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy)); 12855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 128772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 128872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1289f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 129272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *New =new(*this,8)FunctionNoProtoType(ResultTy,Canonical); 12935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 129472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 12955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 12995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 130061710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1301971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1302bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl unsigned TypeQuals) { 13035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 13045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 13055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 130672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1307bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl TypeQuals); 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 131072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionProtoType *FTP = 131172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 13135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 13155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 13165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 13175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 13185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 13195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 13215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 13225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 13235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 13245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 13255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1326f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 1327bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl 1328f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 13295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 1330bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl isVariadic, TypeQuals); 1331bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl 13325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 133372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 133472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1335f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1337bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl 133872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1339bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl // for a variable size array (for parameter types) at the end of them. 134072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *FTP = 1341bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1342bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl NumArgs*sizeof(QualType), 8); 134372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1344bfa2fcba545fb270f31205d616846c2bfaf4e47eSebastian Redl TypeQuals, Canonical); 13455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 134672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 13475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 13485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13502ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 13512ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 13524b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 13531e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 13542ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 13552ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 13561e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 13572ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1358fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1359fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 1360fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor } else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 13612ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 136249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1363c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1364566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1365566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1366f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1367f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) RecordType(Record); 1368566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek } 1369566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1370566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1371566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1372f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1373f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) EnumType(Enum); 13744b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 137549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 13762ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 137749aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 13784b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 137949aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 13802ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 13812ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 13825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 13835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 13845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 13855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 13865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1387f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 138872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Decl->TypeForDecl = new(*this,8) TypedefType(Type::Typedef, Decl, Canonical); 13895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 13905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 13915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1393a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 13943536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 13953b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel DunbarQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl) { 13963536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 13973536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 13983b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel Dunbar ObjCInterfaceDecl *OID = const_cast<ObjCInterfaceDecl*>(Decl); 13993b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel Dunbar Decl->TypeForDecl = new(*this,8) ObjCInterfaceType(Type::ObjCInterface, OID); 14003536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 14013536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 14023536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 14033536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1404fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 1405fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// parameter with the given depth, index, and (optionally) name. 1406fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas GregorQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 1407fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1408fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 1409fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType::Profile(ID, Depth, Index, Name); 1410fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 1411fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType *TypeParm 1412fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1413fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1414fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1415fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1416fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1417fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (Name) 1418fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, Name, 1419fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor getTemplateTypeParmType(Depth, Index)); 1420fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else 1421fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index); 1422fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1423fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1424fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1425fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1426fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1427fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1428fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 142955f6b14230c94272efbbcdd89a92224c8db9f225Douglas GregorQualType 14307532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 14317532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 14327532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 14337532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 143440808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor if (!Canon.isNull()) 143540808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor Canon = getCanonicalType(Canon); 1436fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 143755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor llvm::FoldingSetNodeID ID; 14387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType::Profile(ID, Template, Args, NumArgs); 143940808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 144055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor void *InsertPos = 0; 14417532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType *Spec 14427532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 144355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 144455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (Spec) 144555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 144655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 14477532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *Mem = Allocate((sizeof(TemplateSpecializationType) + 144840808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 144940808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 8); 14507532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor Spec = new (Mem) TemplateSpecializationType(Template, Args, NumArgs, Canon); 145155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 14527532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 145355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 145455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 145555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 145655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 1457e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas GregorQualType 1458ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1459e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1460e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1461ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1462e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1463e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 1464e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameType *T 1465e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1466e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1467e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1468e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1469ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor T = new (*this) QualifiedNameType(NNS, NamedType, 1470ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1471e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1472e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1473e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1474e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1475e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1476d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1477d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1478d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1479d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1480d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1481d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1482d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1483d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1484d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1485d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1486d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1487d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1488d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1489d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1490d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 1491d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType *T 1492d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1493d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1494d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1495d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1496d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1497d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1498d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 1499d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1500d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1501d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 15021734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorQualType 15031734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorASTContext::getTypenameType(NestedNameSpecifier *NNS, 15041734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 15051734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 15061734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 15071734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15081734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 15091734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 15101734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 15111734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 15121734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 15131734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = CanonType->getAsTemplateSpecializationType(); 15141734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 15151734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 15161734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 15171734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 15181734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 15191734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15201734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 15211734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 15221734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15231734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 15241734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType *T 15251734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 15261734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 15271734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 15281734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 15291734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 15301734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 15311734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 15321734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 15331734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 15341734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 153588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 153688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 153788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 153888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 15392e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 154088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 154188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 154288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 154388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 154488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 154588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 154688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 154788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 154888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 154988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 155088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 155188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 155288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 155388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 155488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1555065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1556065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1557a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1558a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 155988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 156088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 156188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 15624b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1563b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 15644b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 15654b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1566a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1567a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 15684b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 15694b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 15704b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1571a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1572f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 1573566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek 15744b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1575a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 15764b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 15774b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 15784b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 157988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 158088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 158162f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 1582c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 158388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 158488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 158588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1586c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 1587a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 1588c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1589c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 1590a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 159162f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 1592c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 1593c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1594c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 1595566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ObjCQualifiedIdType *QType = 1596f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedIdType(Protocols, NumProtocols); 1597c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 1598a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 1599c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 1600c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 1601c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 160272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 160372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 16049752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 16059752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 16069752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 160772564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 1608f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 160972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor TypeOfExprType *toe = new (*this,8) TypeOfExprType(tofExpr, Canonical); 16109752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 16119752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1612d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1613d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 16149752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 16159752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 16169752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 16179752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 16189752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1619d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1620f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 1621f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfType *tot = new (*this,8) TypeOfType(tofType, Canonical); 16229752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 16239752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1624d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1625d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 16265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 16275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 16285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1629d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 16302ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 16315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 16345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 16355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 16365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1637b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 16385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 164064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 164164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 164264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 164364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 164464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 164564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 164664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 164764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 164864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 164964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 165064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 165164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 165264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 165364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 16548b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 16558b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 16568b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1657b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 16588b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 16598b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1660e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1661e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1662e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1663e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 166477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 166577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 166677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 166777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 166877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 166977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 167077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 167177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1672c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1673c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1674c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1675c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1676c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1677c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1678c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1679c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1680c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1681c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1682c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1683c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1684c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1685c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1686c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1687c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1688c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1689c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1690c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1691c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1692c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1693c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1694c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1695898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 1696898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return getDependentSizedArrayType(NewEltTy, DSAT->getSizeExpr(), 1697898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1698898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier()); 1699898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1700c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1701c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1702c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1703c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1704c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1705c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 170625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas GregorTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 170725a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // If this template name refers to a template, the canonical 170825a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor // template name merely stores the template itself. 170925a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor if (TemplateDecl *Template = Name.getAsTemplateDecl()) 171025a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return TemplateName(Template); 171125a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 171225a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 171325a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor assert(DTN && "Non-dependent template names must refer to template decls."); 171425a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor return DTN->CanonicalTemplateName; 171525a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor} 171625a3ef7cc5fd55dc8cc67c6e6770c8595657e082Douglas Gregor 1717d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 1718d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 1719d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (!NNS) 1720d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 1721d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1722d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 1723d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 1724d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 1725d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 1726d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 1727d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 1728d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1729d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 1730d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 1731d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 1732d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 1733d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1734d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 1735d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 1736d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 1737d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *Prefix = 0; 1738d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1739d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: This isn't the right check! 1740d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T->isDependentType()) 1741d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Prefix = getCanonicalNestedNameSpecifier(NNS->getPrefix()); 1742d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1743d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, Prefix, 1744d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 1745d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 1746d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1747d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1748d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 1749d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 1750d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 1751d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1752d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1753d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 1754d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 1755d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1756d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1757c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1758c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1759c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1760c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1761c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1762c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1763c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1764c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1765c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1766c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1767c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1768c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1769f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Make sure to look through type qualifiers (like ExtQuals) for the negative 1770c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1771c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1772c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1773c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1774c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1775c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1776c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1777c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1778c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1779c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1780c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1781c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1782c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1783c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1784c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1785c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1786f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Rip through ExtQualType's and typedefs to get to a concrete type. 1787c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1788f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(Ty)) { 1789f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian AddrSpace = EXTQT->getAddressSpace(); 1790f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Ty = EXTQT->getBaseType(); 1791c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1792c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1793c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1794c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1795c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1796c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1797c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1798c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1799c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1800c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1801c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1802c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1803c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1804c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1805c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1806c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1807c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1808c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1809c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1810c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1811f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian NewEltTy = getAddrSpaceQualType(NewEltTy, AddrSpace); 1812c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1813c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1814c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1815c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1816c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1817c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1818c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1819c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1820c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1821c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1822898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1823898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 1824898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 1825898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 1826898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 1827898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 1828898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1829898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier())); 1830c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1831c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1832c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1833c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1834c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 183577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 183677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 183777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1838e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1839e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1840e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1841e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1842e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1843e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1844e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1845c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1846c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1847c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1848c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1849c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1850c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1851e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1852c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1853e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1854e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1855c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1856e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1857e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1858d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel DunbarQualType ASTContext::getBaseElementType(const VariableArrayType *VAT) { 18596183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson QualType ElemTy = VAT->getElementType(); 18606183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 18616183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson if (const VariableArrayType *VAT = getAsVariableArrayType(ElemTy)) 18626183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return getBaseElementType(VAT); 18636183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 18646183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 18656183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 18666183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 18675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 18685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1869a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1870ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 18715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1872a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1873d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel Dunbar assert(T->getAsBuiltinType() && "getFloatingRank(): not a floating type"); 1874ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1875a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 18765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 18775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 18785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 18795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 18815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1882716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1883716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1884716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1885716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 18861361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 18871361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 18881361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 18891361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 18901361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1891716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1892f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1893f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1894f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1895f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1896f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 18971361b11066239ea15764a2a844405352d87296b3Chris Lattner 18981361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 18991361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 19001361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 19011361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 19021361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 19031361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 19045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 19065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 19087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 19097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 19107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1911a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1912a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1913a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1914a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1915a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1916fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1917a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1918fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1919fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 19205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 19215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1922f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1923f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1924f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1925f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 1926f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1927f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 1928f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman T = ET->getDecl()->getIntegerType().getTypePtr(); 1929f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 1930f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 1931f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 1932f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 1933f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 1934f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 1935f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 1936f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 1937f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 19387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 19397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 1940f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 19417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 19427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 19437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 19447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 1945f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 19467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 19477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 1948f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 19497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 19507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 1951f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 19527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 19537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 1954f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 19557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 19567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 1957f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 19582df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 19592df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: 19602df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return 7 + (getIntWidth(Int128Ty) << 3); 1961f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1962f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1963f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 19647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 19657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 19667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 19677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1968f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1969f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 19707cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 19715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1972f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1973f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 19745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19757cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 19767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 19775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19787cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 19797cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 19807cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 19817cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 19827cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 19837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 19847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 19857cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 19867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 19877cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 19887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 19897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 19907cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 19917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 19927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 19937cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 19947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 19957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 19967cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 19977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 19985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 20007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 20017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 20027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 20035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 200471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 200571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 200671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 200771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 20086c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 200939ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2010df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 2011f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 201271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 201371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 201471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 2015f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 2016f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 201771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 2018f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 201971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 2020f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 202171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 202244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 202344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 202444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 202544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 202644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 20274afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 20286ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor CFConstantStringTypeDecl->addDecl(*this, Field); 202944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 203044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 203144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 203271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 203371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 203471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 20358467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 2036b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2037319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setCFConstantStringType(QualType T) { 2038319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const RecordType *Rec = T->getAsRecordType(); 2039319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid CFConstantStringType"); 2040319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor CFConstantStringTypeDecl = Rec->getDecl(); 2041319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2042319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2043bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 2044bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 2045bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 204644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 204744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 204844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 204944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2050bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 2051bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 2052bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 2053bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 2054bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 2055bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 2056bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 2057bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 205844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 205944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 206044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 206144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 206244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 20634afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 20646ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor ObjCFastEnumerationStateTypeDecl->addDecl(*this, Field); 206544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 2066bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 206744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2068bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 2069bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2070bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2071bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2072bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2073319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCFastEnumerationStateType(QualType T) { 2074319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const RecordType *Rec = T->getAsRecordType(); 2075319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 2076319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 2077319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor} 2078319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2079e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 2080e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 20812d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 2082e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 2083bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 2084bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 208585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 208685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 208785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 208885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2089a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 209033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 2091a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 209298be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 209333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 209433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 209533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 209698be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 209733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 209833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 209998be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 210098be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 210133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 210233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2103a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 210433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 2105c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 2106e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2107c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2108ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 2109a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 211033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 21110d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 211233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 211333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 211433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 211533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 211698be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 211733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 211833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 211933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 212089951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 212189951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 212289951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 212389951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 2124a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 212533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 212633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 212733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 212833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 212933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 213033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 213133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 213233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 213389951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 213489951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 213589951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 21364306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian QualType PType = PVDecl->getOriginalType(); 21374306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 2138ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 2139ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // Use array's original type only if it has known number of 2140ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff // elements. 2141bb3fde337fb712c0e6da8790d431621be4793048Steve Naroff if (!isa<ConstantArrayType>(AT)) 2142ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2143ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff } else if (PType->isFunctionType()) 2144ab76d45e023fc5ae966968344e180cd09fdcc746Steve Naroff PType = PVDecl->getType(); 2145ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 214633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 21474306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 21480d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 214933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 2150a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 215133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 215233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 215333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2154c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 215583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 2156c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 2157c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 215883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// Property attributes are stored as a comma-delimited C string. The simple 215983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// attributes readonly and bycopy are encoded as single characters. The 216083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// parametrized attributes, getter=name, setter=name, and ivar=name, are 216183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// encoded as single characters, followed by an identifier. Property types 216283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// are also encoded as a parametrized attribute. The characters used to encode 216383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 216483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 216583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 216683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 216783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 216883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 216983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 217083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 217183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 217283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 217383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 217483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 217583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 217683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 217783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 217883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 2179c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 2180c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 2181e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2182c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 2183c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 2184c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 2185c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2186c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 2187c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 2188c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 2189c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 2190c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 2191653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i = CID->propimpl_begin(*this), e = CID->propimpl_end(*this); 2192653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2193c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2194c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2195c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2196c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2197c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2198c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2199c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2200c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2201c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2202c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 220361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 2204c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 2205653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i = OID->propimpl_begin(*this), e = OID->propimpl_end(*this); 2206653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor i != e; ++i) { 2207c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2208c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2209c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2210c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2211c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2212c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2213c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2214c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2215c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2216c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2217c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2218c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2219c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2220c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 2221c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2222c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 2223090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 2224090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 2225153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 2226090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 2227090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 2228c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2229c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 2230c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 2231c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2232c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 2233c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 2234c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 2235c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 2236c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2237c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2238c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2239c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 2240c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 2241c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 2242c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 2243c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2244090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 2245090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 2246090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian 2247c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 2248c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 2249077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 2250c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2251c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2252c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 2253c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 2254077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 2255c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2256c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2257c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 2258c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 2259c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 226039f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 2261c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2262c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2263c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 2264c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 2265c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2266a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 2267a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// Another legacy compatibility encoding: 32-bit longs are encoded as 2268c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian/// 'l' or 'L' , but not always. For typedefs, we need to use 2269a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 2270a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 2271a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 2272a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(PointeeTy.getTypePtr())) { 2273a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (const BuiltinType *BT = PointeeTy->getAsBuiltinType()) { 2274c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 2275c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2276a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 2277c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian else 2278c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 2279c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2280a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 2281a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2282a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2283a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 2284a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 22857d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 2286153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *Field) { 228782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 228882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 228982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 229082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 22915b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian getObjCEncodingForTypeImpl(T, S, true, true, Field, 22925b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 229382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 229482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 22958b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanianstatic void EncodeBitField(const ASTContext *Context, std::string& S, 2296153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD) { 22978b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 22988b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 22998b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 23009a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 23018b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 23028b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 23038b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 23048b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 230582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 230682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 230782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 2308153bfe5795e2c1a5a738e73d3784964e082237fcDaniel Dunbar const FieldDecl *FD, 2309090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 23106ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 2311e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 231243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD && FD->isBitField()) { 23138b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 231485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 231543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else { 231643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian char encoding; 231743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian switch (BT->getKind()) { 231843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian default: assert(0 && "Unhandled builtin type kind"); 231943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Void: encoding = 'v'; break; 232043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Bool: encoding = 'B'; break; 232143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_U: 232243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UChar: encoding = 'C'; break; 232343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UShort: encoding = 'S'; break; 232443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UInt: encoding = 'I'; break; 232572696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::ULong: 232672696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 232772696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 232872696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 23292df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::UInt128: encoding = 'T'; break; 233043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::ULongLong: encoding = 'Q'; break; 233143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_S: 233243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::SChar: encoding = 'c'; break; 233343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Short: encoding = 's'; break; 233443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Int: encoding = 'i'; break; 233572696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::Long: 233672696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 233772696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 233872696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 233943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongLong: encoding = 'q'; break; 23402df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: encoding = 't'; break; 234143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Float: encoding = 'f'; break; 234243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Double: encoding = 'd'; break; 234343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongDouble: encoding = 'd'; break; 234443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 234585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 234643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += encoding; 234743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 2348c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson } else if (const ComplexType *CT = T->getAsComplexType()) { 2349c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson S += 'j'; 2350c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 2351c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson false); 2352c612f7bc9a6379cd7e7c2dd306d05938e890051bAnders Carlsson } else if (T->isObjCQualifiedIdType()) { 2353090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(getObjCIdType(), S, 2354090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandPointedToStructures, 2355090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandStructures, FD); 2356090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 2357090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Note that we do extended encoding of protocol qualifer list 2358090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Only when doing ivar or property encoding. 2359090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian const ObjCQualifiedIdType *QIDT = T->getAsObjCQualifiedIdType(); 2360090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2361090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian for (unsigned i =0; i < QIDT->getNumProtocols(); i++) { 2362090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCProtocolDecl *Proto = QIDT->getProtocols(i); 2363090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2364090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += Proto->getNameAsString(); 2365090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2366090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2367090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2368090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2369090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian return; 2370c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 2371c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 237285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 2373a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 2374a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 2375a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 2376a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 2377a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Also, do not emit the 'r' for anything but the outermost type! 2378a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(T.getTypePtr())) { 2379a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 2380a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2381a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2382a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2383a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2384a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian else if (OutermostType) { 2385a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 2386a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian while (P->getAsPointerType()) 2387a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian P = P->getAsPointerType()->getPointeeType(); 2388a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 2389a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2390a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2391a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2392a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2393a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 2394a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 2395a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 2396a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 2397a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 2398a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 2399a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 2400a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 2401a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 2402a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2403a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2404389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(PointeeTy)) { 2405c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 2406c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 2407c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian } 2408c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian else if (PointeeTy->isObjCInterfaceType()) { 2409bb99bdec7d3e704485baffae85938d24d35f0e0fFariborz Jahanian if (!EncodingProperty && 2410225dfd7d6b0ed14e6b7ad8dc121161b9f34ecfceFariborz Jahanian isa<TypedefType>(PointeeTy.getTypePtr())) { 24113e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // Another historical/compatibility reason. 24123e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // We encode the underlying type which comes out as 24133e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // {...}; 24143e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian S += '^'; 24153e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 24163e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian false, ExpandPointedToStructures, 24173e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian NULL); 24183e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian return; 24193e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian } 2420c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian S += '@'; 2421090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 242286f938b3d4a79fb9c337d351c8f3e5f1ff18f1b6Fariborz Jahanian const ObjCInterfaceType *OIT = 242386f938b3d4a79fb9c337d351c8f3e5f1ff18f1b6Fariborz Jahanian PointeeTy.getUnqualifiedType()->getAsObjCInterfaceType(); 2424090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCInterfaceDecl *OI = OIT->getDecl(); 2425adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2426adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += OI->getNameAsCString(); 2427090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian for (unsigned i =0; i < OIT->getNumProtocols(); i++) { 2428090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCProtocolDecl *Proto = OIT->getProtocol(i); 2429090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2430090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += Proto->getNameAsString(); 2431090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2432090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2433adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2434adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian } 2435c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian return; 2436389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff } else if (isObjCClassStructType(PointeeTy)) { 24378baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 24388baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2439a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 24408baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 24418baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2442c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 244385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 244485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 244585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 244685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 2447e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 244885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 244985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 245085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 245185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 245285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 245385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 2454a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 2455a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 2456a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 2457d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar false, ExpandPointedToStructures, 245843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 2459c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 2460c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 2461c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 2462559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 2463559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 2464559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 2465559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 2466559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2467559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2468559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 2469559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 247085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2471559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 2472559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 2473559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 2474559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 2475559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 2476559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 2477559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 247885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2479559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2480559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2481559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 2482559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 2483c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 2484c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 24856de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 248682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 2487d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 2488502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 2489502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 2490502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 2491502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 2492502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 2493502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 24940d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 24957d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 24966ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor for (RecordDecl::field_iterator Field = RDecl->field_begin(*this), 24976ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor FieldEnd = RDecl->field_end(*this); 249844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 249943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 2500d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 250144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 2502d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 2503d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 2504d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 2505d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 250643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 250743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 250843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 2509d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 2510a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 2511a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 2512a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(qt, S, false, true, 251343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 2514d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 25157d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 25166de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 2517d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 25185e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 25198b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 25208b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 25218b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 25228b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 2523485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 252421a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 252543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } else if (T->isObjCInterfaceType()) { 252643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 252743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 252843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 252943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 253043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 253143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 2532f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 253343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 2534f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 253543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 253643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 253743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 253843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 253943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 254043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 254143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 254243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 254343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 254443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 2545f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 254685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 254785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2548a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 2549ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 2550ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 2551ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 2552ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 2553ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 2554ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 2555ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 2556ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 2557ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 2558ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 2559ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 2560ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 2561ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 2562ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 2563ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 2564b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 2565b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 2566b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 2567b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2568b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 2569b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 2570b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2571319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCIdType(QualType T) 25727e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 2573319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCIdType = T; 2574319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2575319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2576319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2577319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2578319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2579319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 25807e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 25817e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 25827e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2583c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2584c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2585c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 25867e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2587c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2588c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2589c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 25907e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 25917e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 25927e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 2593319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCSelType(QualType T) 2594b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 2595319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCSelType = T; 2596319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2597319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2598319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2599319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2600319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 2601b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2602b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 2603b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2604c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2605c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2606b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2607c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2608c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2609b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 2610b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 2611b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2612a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 2613390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 2614a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 2615390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 2616390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 2617319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregorvoid ASTContext::setObjCClassType(QualType T) 26188baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 2619319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor ObjCClassType = T; 2620319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor 2621319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor const TypedefType *TT = T->getAsTypedefType(); 2622319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor if (!TT) 2623319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor return; 2624319ac896a0fef7365d5589b8021db7e41207fe42Douglas Gregor TypedefDecl *TD = TT->getDecl(); 26258baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 26268baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 26278baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 26288baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 26298baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 26308baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 26318baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 26328baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 26338baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 2634a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 2635a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 26362198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 26372198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 2638a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 26392198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 26402198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 26417532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a qualified 26427532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c std::vector. 26437532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 26447532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool TemplateKeyword, 26457532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateDecl *Template) { 26467532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 26477532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 26487532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 26497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 26507532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName *QTN = 26517532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 26527532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (!QTN) { 26537532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 26547532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 26557532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 26567532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 26577532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 26587532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 26597532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 26607532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 26617532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 26627532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 26637532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 26647532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(NNS->isDependent() && "Nested name specifier must be dependent"); 26657532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 26667532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 26677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 26687532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 26697532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 26707532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 26717532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 26727532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 26737532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 26747532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 26757532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 26767532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 26777532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 26787532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 26797532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 26807532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 26817532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 26827532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 26837532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 26847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 26857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 26867532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 26877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 2688b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 2689d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 2690d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 2691d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 2692b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 2693b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 2694b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 2695b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 2696b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 2697b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 2698b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 2699b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 2700b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 2701b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 2702b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 2703b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 2704b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 2705b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 2706b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 2707b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2708b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2709b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 2710b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2711b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2712fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 2713fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 2714fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 2715fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 2716fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 2717fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 2718fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 2719fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TD->getAttr<ObjCNSObjectAttr>()) 2720fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2721fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 2722fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return false; 2723fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 2724fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2725b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 2726b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 2727b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 2728b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 2729b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 2730d461777e23204fe8c480302d8ff76f5847605da6Steve Naroff if (Ty->isObjCQualifiedIdType()) 2731b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2732b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 27336ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // Blocks are objects. 27346ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff if (Ty->isBlockPointerType()) 27356ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff return true; 27366ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff 27376ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // All other object types are pointers. 273816ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner const PointerType *PT = Ty->getAsPointerType(); 273916ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (PT == 0) 2740b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 2741b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2742b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 274316ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (PT->getPointeeType()->isObjCInterfaceType() || 274416ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // If is has NSObject attribute, OK as well. 274516ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner isObjCNSObjectType(Ty)) 2746fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2747fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 274816ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // Check to see if this is 'id' or 'Class', both of which are typedefs for 274916ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // pointer types. This looks for the typedef specifically, not for the 275016ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // underlying type. Iteratively strip off typedefs so that we can handle 275116ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner // typedefs of typedefs. 275216ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner while (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 275316ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner if (Ty.getUnqualifiedType() == getObjCIdType() || 275416ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner Ty.getUnqualifiedType() == getObjCClassType()) 275516ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner return true; 275616ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner 275716ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner Ty = TDT->getDecl()->getUnderlyingType(); 275816ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner } 275916ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner 276016ede0ec39bf72f5e696e8ed5f1533b29ac2f3d8Chris Lattner return false; 2761b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 2762b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 27634fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 27644fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 27654fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 27664fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz JahanianQualType::GCAttrTypes ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 2767b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttrs = QualType::GCNone; 27684fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 27694fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 2770b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 27714fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 2772a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // (or pointers to them) be treated as though they were declared 2773a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 2774a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (GCAttrs == QualType::GCNone) { 2775a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (isObjCObjectPointerType(Ty)) 2776a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian GCAttrs = QualType::Strong; 2777a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 2778a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian return getObjCGCAttrKind(Ty->getAsPointerType()->getPointeeType()); 2779a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 2780c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // Non-pointers have none gc'able attribute regardless of the attribute 2781c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian // set on them. 2782c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian else if (!isObjCObjectPointerType(Ty) && !Ty->isPointerType()) 2783c2112181b96349eb595dc5e8b7073b81ecdec0dbFariborz Jahanian return QualType::GCNone; 27844fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 2785b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 27864fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 27874fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 27886ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 27896ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 27906ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 2791770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 27921c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff/// typesAreBlockCompatible - This routine is called when comparing two 2793dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// block types. Types must be strictly compatible here. For example, 2794dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// C unfortunately doesn't produce an error for the following: 2795dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2796dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*emptyArgFunc)(); 2797dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*intArgList)(int) = emptyArgFunc; 2798dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2799dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// For blocks, we will produce an error for the following (similar to C++): 2800dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2801dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^emptyArgBlock)(); 2802dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^intArgBlock)(int) = emptyArgBlock; 2803dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2804dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// FIXME: When the dust settles on this integration, fold this into mergeTypes. 2805dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 28061c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroffbool ASTContext::typesAreBlockCompatible(QualType lhs, QualType rhs) { 2807c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *lbase = lhs->getAsFunctionType(); 2808c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *rbase = rhs->getAsFunctionType(); 280972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 281072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 2811aab0f7a749e939d1d485a436f57ae56d14ba3016Mike Stump if (lproto && rproto == 0) 2812aab0f7a749e939d1d485a436f57ae56d14ba3016Mike Stump return false; 2813aab0f7a749e939d1d485a436f57ae56d14ba3016Mike Stump return !mergeTypes(lhs, rhs).isNull(); 28141c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff} 28151c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff 28166ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 28176ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 28186ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 28196ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 28206ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 28216ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 282261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 28236ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 28246ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 28253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 28266ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 28276ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 28286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 28293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 28303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 28316ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 28326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 28336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 28346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 28356ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 28366ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 28376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 28386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 28396ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 28406ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 28416ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 28426ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 28436ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 28446ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 28456ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 28466ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 28476ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 28486ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 28496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 285091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // All LHS protocols must have a presence on the RHS. 285191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff assert(LHSP->qual_begin() != LHSP->qual_end() && "Empty LHS protocol list?"); 285291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 285391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(), 285491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPE = LHSP->qual_end(); 285591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 285691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 285791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 285891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 285991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 286091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(), 286191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSPE = RHSP->qual_end(); 286291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff !RHSImplementsProtocol && (RHSPI != RHSPE); RHSPI++) { 286391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) 286491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 286591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 286691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 286791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 286891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 286991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 287091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 287191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 28726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 28736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 2874389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 2875389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 2876389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const PointerType *LHSPT = LHS->getAsPointerType(); 2877389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const PointerType *RHSPT = RHS->getAsPointerType(); 2878389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2879389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (!LHSPT || !RHSPT) 2880389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 2881389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2882389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff QualType lhptee = LHSPT->getPointeeType(); 2883389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff QualType rhptee = RHSPT->getPointeeType(); 2884389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const ObjCInterfaceType* LHSIface = lhptee->getAsObjCInterfaceType(); 2885389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const ObjCInterfaceType* RHSIface = rhptee->getAsObjCInterfaceType(); 2886389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // ID acts sort of like void* for ObjC interfaces 2887389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (LHSIface && isObjCIdStructType(rhptee)) 2888389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return true; 2889389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (RHSIface && isObjCIdStructType(lhptee)) 2890389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return true; 2891389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (!LHSIface || !RHSIface) 2892389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 2893389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return canAssignObjCInterfaces(LHSIface, RHSIface) || 2894389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff canAssignObjCInterfaces(RHSIface, LHSIface); 2895389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 2896389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2897ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 2898ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 2899ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 2900ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 29013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 29023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 29033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 29043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29053d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 29063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 29073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 290872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 290972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 29103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 29113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 29123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 29143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 29153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 291661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 291761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 291861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 291961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 29203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 29223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 29233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 29243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 29263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 29273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 29283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 29303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 29313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 29323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29337fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 29347fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 29357fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 29363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 29373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 29383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 29393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 29403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 29413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 29423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 29433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 294461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 294561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 294661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 294761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 29483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 29493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 29503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 29513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 29527fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 29533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 29543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 29563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 29573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 295872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 29593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 29603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 29613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 29623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 29633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 29643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 29653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 29663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 29673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 29683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 29693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 29703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 29713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 29723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 29733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 29753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 29763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 29777fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 29787fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 29793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 29803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 29823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 298372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return getFunctionNoProtoType(retType); 29843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 29853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29863d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 298743d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 298843d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 298943d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 29907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 29917c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 29923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 29933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 29947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 29957c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 29963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 2997c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 29983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 2999c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 30003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 30023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 30033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3004f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 30053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 30063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 30073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 30095a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Note that we handle extended qualifiers later, in the 30105a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // case for ExtQualType. 30115a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers()) 30123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 30133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 3014c8d2e77288c07a69cabb755a4ab9feeb7b5a1287Fariborz Jahanian Type::TypeClass LHSClass = LHSCan.getUnqualifiedType()->getTypeClass(); 3015c8d2e77288c07a69cabb755a4ab9feeb7b5a1287Fariborz Jahanian Type::TypeClass RHSClass = RHSCan.getUnqualifiedType()->getTypeClass(); 3016f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 30171adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 30181adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 30191adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 30201adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 30214c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 30224c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 3023a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 3024a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 3025a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 3026a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 3027a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 3028213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 3029213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 3030213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 3031ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 3032b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 3033b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 3034b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 30353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30364e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 30374e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 30385fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 30395fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 3040c8d2e77288c07a69cabb755a4ab9feeb7b5a1287Fariborz Jahanian 3041d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff // 'id' and 'Class' act sort of like void* for ObjC interfaces 3042d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (LHSIface && (isObjCIdStructType(RHS) || isObjCClassStructType(RHS))) 30435fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 3044d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (RHSIface && (isObjCIdStructType(LHS) || isObjCClassStructType(LHS))) 30455fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return RHS; 30465fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 3047bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // ID is compatible with all qualified id types. 3048bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (LHS->isObjCQualifiedIdType()) { 3049bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) { 3050bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 3051d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (isObjCIdStructType(pType) || isObjCClassStructType(pType)) 3052bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 3053bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 3054bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 3055bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 3056bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 3057bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 3058bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 3059bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3060bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3061bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (RHS->isObjCQualifiedIdType()) { 3062bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) { 3063bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 3064d824c9c281c163ba86f3cc10c5572120234a2454Steve Naroff if (isObjCIdStructType(pType) || isObjCClassStructType(pType)) 3065bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 3066bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 3067bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 3068bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 3069bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 3070bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 3071bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 3072bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 3073bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 30741adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 30751adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 30763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 30773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 30783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 3079bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 30803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 30813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 30823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 3083bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 30841adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 30853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 3086ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 30873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30884a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 30891adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 309072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 309172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 309272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 309372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 309472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 309572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 309672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 309772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 30987c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 30997c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 310072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 310172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 310272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 310372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 310472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 310572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 310672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 310772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 310872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 310972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 311072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 311172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 31121adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 31133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 31143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 31153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 31163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 31173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 31183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 311961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 312061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 312161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 312261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 31233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 31243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 3125c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 3126c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 3127c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 3128c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 3129c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 3130c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 3131c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 3132c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 3133c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 3134c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 3135c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 3136c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 3137c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 31381adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 31393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 31403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 31413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 31423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 31433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 31443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 31453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 31463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 31473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 31483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 314961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 315061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 315161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 315261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 31533bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 31543bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 31553bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 31563bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 31573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 31583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 315961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 316061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 316161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 316261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 31633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 31643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 31653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 31663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 31673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 31683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 31693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 31703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 31713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 31723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 31733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 31743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 31753bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 31763bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 317761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(),0); 31783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 31791adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 31803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 318172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 318272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 31833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 3184389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(LHS) && isObjCClassStructType(RHS)) return LHS; 3185389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCClassStructType(LHS) && isObjCIdStructType(RHS)) return LHS; 31863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 31871adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 31883cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 31893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 319064cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 319164cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 319264cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 31933cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 31945a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 31953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 31963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 319761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 319861490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 31995fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 32005a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 32015a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 32025fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 32035fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 32045fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 32055fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 32065fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 32075fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 32083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 320961490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 3210bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff case Type::ObjCQualifiedId: 3211bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Distinct qualified id's are not compatible. 3212bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 32135a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 32145a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 32155a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 32165a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::ExtQual: 32175a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: ExtQual types can be compatible even if they're not 32185a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // identical! 32195a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 32205a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // First attempt at an implementation, but I'm not really sure it's 32215a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // right... 32225a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#if 0 32235a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* LQual = cast<ExtQualType>(LHSCan); 32245a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* RQual = cast<ExtQualType>(RHSCan); 32255a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LQual->getAddressSpace() != RQual->getAddressSpace() || 32265a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LQual->getObjCGCAttr() != RQual->getObjCGCAttr()) 32275a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 32285a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman QualType LHSBase, RHSBase, ResultType, ResCanUnqual; 32295a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LHSBase = QualType(LQual->getBaseType(), 0); 32305a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman RHSBase = QualType(RQual->getBaseType(), 0); 32315a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = mergeTypes(LHSBase, RHSBase); 32325a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (ResultType.isNull()) return QualType(); 32335a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResCanUnqual = getCanonicalType(ResultType).getUnqualifiedType(); 32345a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getUnqualifiedType() == ResCanUnqual) 32355a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return LHS; 32365a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (RHSCan.getUnqualifiedType() == ResCanUnqual) 32375a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return RHS; 32385a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getAddrSpaceQualType(ResultType, LQual->getAddressSpace()); 32395a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getObjCGCQualType(ResultType, LQual->getObjCGCAttr()); 32405a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType.setCVRQualifiers(LHSCan.getCVRQualifiers()); 32415a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return ResultType; 32425a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#endif 32437532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 32447532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 32457532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 32467532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 3247ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 324872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 324972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 3250ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 32517192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 32525426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 3253ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 3254ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 325588054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 3256ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 3257ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 3258ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 3259f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 3260f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 3261f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 3262f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 3263ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 3264ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3265ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 3266ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 3267ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 3268ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 3269ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 3270ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 3271ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 3272ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 3273ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 3274ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 3275ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 3276ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 3277ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 3278ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 3279ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 3280ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 3281ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 3282ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 3283ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 32842df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner case BuiltinType::Int128: 32852df9ced9fd1e8c7d7b38443db07e0e811de22571Chris Lattner return UnsignedInt128Ty; 3286ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 3287ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 3288ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 3289ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 3290ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3291ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 32922cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas GregorExternalASTSource::~ExternalASTSource() { } 32932cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 32942cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregorvoid ExternalASTSource::PrintStats() { } 3295