ASTContext.cpp revision a9376d470ccb0eac74fe09a6b2a18a890f1d17c4
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" 19e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/RecordLayout.h" 20a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner#include "clang/Basic/SourceManager.h" 215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 2285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 237192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Serialize.h" 247192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Deserialize.h" 256fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.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, 35c0ac4923f08b25ae973a8ee7942cf3eb89da57b7Steve Naroff bool FreeMem, unsigned size_reserve) : 36ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 37ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor ObjCFastEnumerationStateTypeDecl(0), SourceMgr(SM), LangOpts(LOpts), 38ed0e497efc23ac4b35481a60a80579d355335e07Chris Lattner FreeMemory(FreeMem), Target(t), Idents(idents), Selectors(sels) { 39e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 40e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar InitBuiltinTypes(); 417644f0726c310ec4224085eaea5f9aff8b957d90Chris Lattner BuiltinInfo.InitializeBuiltins(idents, Target, LangOpts.NoBuiltin); 42e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 43e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 44e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 484b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 51b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 52b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 53b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 54b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 55b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 56b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 57b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 58b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 59b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 60b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 61b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 62b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const ObjCInterfaceDecl*, const ASTRecordLayout*>::iterator 63b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTObjCInterfaces.begin(), E = ASTObjCInterfaces.end(); 64b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 65b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 66b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 67b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 68b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 69b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const ObjCInterfaceDecl*, const RecordDecl*>::iterator 72b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordForInterface.begin(), E = ASTRecordForInterface.end(); 73b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 74b74668edbc119880eb0a7e563432314432cb775dNuno Lopes RecordDecl *R = const_cast<RecordDecl*>((I++)->second); 75b74668edbc119880eb0a7e563432314432cb775dNuno Lopes R->Destroy(*this); 76b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 77b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 78b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 79ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 801ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 811ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 821ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNSEnd = NestedNameSpecifiers.end(); 83e7dcd782df0e1cc3a63e429a866098e69db39153Douglas Gregor NNS != NNSEnd; 841ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor /* Increment in loop */) 851ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 86ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 87ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 88ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 89ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 90b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumBuiltin = 0, NumPointer = 0, NumArray = 0, NumFunctionP = 0; 97248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar unsigned NumVector = 0, NumComplex = 0, NumBlockPointer = 0; 987c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl unsigned NumFunctionNP = 0, NumTypeName = 0, NumTagged = 0; 997c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl unsigned NumLValueReference = 0, NumRValueReference = 0, NumMemberPointer = 0; 1007c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumTagStruct = 0, NumTagUnion = 0, NumTagEnum = 0, NumTagClass = 0; 102a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCInterfaces = 0, NumObjCQualifiedInterfaces = 0; 103a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCQualifiedIds = 0; 10472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor unsigned NumTypeOfTypes = 0, NumTypeOfExprTypes = 0; 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isa<BuiltinType>(T)) 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumBuiltin; 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<PointerType>(T)) 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumPointer; 112248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar else if (isa<BlockPointerType>(T)) 113248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar ++NumBlockPointer; 1147c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl else if (isa<LValueReferenceType>(T)) 1157c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ++NumLValueReference; 1167c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl else if (isa<RValueReferenceType>(T)) 1177c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ++NumRValueReference; 118f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl else if (isa<MemberPointerType>(T)) 119f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl ++NumMemberPointer; 1206d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<ComplexType>(T)) 1216d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumComplex; 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ArrayType>(T)) 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumArray; 1246d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<VectorType>(T)) 1256d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumVector; 12672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor else if (isa<FunctionNoProtoType>(T)) 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionNP; 12872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor else if (isa<FunctionProtoType>(T)) 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionP; 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<TypedefType>(T)) 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTypeName; 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (TagType *TT = dyn_cast<TagType>(T)) { 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTagged; 13439ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis switch (TT->getDecl()->getTagKind()) { 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown tagged type!"); 13639ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_struct: ++NumTagStruct; break; 13739ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_union: ++NumTagUnion; break; 13839ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_class: ++NumTagClass; break; 13939ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_enum: ++NumTagEnum; break; 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 141a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isa<ObjCInterfaceType>(T)) 142a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCInterfaces; 143a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedInterfaceType>(T)) 144a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedInterfaces; 145a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedIdType>(T)) 146a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedIds; 1476cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfType>(T)) 1486cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfTypes; 14972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor else if (isa<TypeOfExprType>(T)) 15072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor ++NumTypeOfExprTypes; 1513f128ad2691d299b96663da85a9e069c4081ea7cSteve Naroff else { 152beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner QualType(T, 0).dump(); 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(0 && "Unknown type!"); 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d builtin types\n", NumBuiltin); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d pointer types\n", NumPointer); 159248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar fprintf(stderr, " %d block pointer types\n", NumBlockPointer); 1607c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl fprintf(stderr, " %d lvalue reference types\n", NumLValueReference); 1617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl fprintf(stderr, " %d rvalue reference types\n", NumRValueReference); 162f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl fprintf(stderr, " %d member pointer types\n", NumMemberPointer); 1636d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d complex types\n", NumComplex); 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d array types\n", NumArray); 1656d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d vector types\n", NumVector); 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with proto\n", NumFunctionP); 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with no proto\n", NumFunctionNP); 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d typename (typedef) types\n", NumTypeName); 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d tagged types\n", NumTagged); 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d struct types\n", NumTagStruct); 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d union types\n", NumTagUnion); 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d class types\n", NumTagClass); 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d enum types\n", NumTagEnum); 174a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek fprintf(stderr, " %d interface types\n", NumObjCInterfaces); 175beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner fprintf(stderr, " %d protocol qualified interface types\n", 176a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedInterfaces); 177c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian fprintf(stderr, " %d protocol qualified id types\n", 178a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedIds); 1796cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof types\n", NumTypeOfTypes); 18072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor fprintf(stderr, " %d typeof exprs\n", NumTypeOfExprTypes); 1817c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "Total bytes = %d\n", int(NumBuiltin*sizeof(BuiltinType)+ 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumPointer*sizeof(PointerType)+NumArray*sizeof(ArrayType)+ 1846d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner NumComplex*sizeof(ComplexType)+NumVector*sizeof(VectorType)+ 1857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl NumLValueReference*sizeof(LValueReferenceType)+ 1867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl NumRValueReference*sizeof(RValueReferenceType)+ 187f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl NumMemberPointer*sizeof(MemberPointerType)+ 18872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor NumFunctionP*sizeof(FunctionProtoType)+ 18972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor NumFunctionNP*sizeof(FunctionNoProtoType)+ 1906cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeName*sizeof(TypedefType)+NumTagged*sizeof(TagType)+ 19172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor NumTypeOfTypes*sizeof(TypeOfType)+NumTypeOfExprTypes*sizeof(TypeOfExprType))); 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 196f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Types.push_back((R = QualType(new (*this,8) BuiltinType(K),0)).getTypePtr()); 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 20898be4943e8dc4f3905629a7102668960873cf863Chris Lattner if (Target.isCharSigned()) 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 2105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 2145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 2155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 2185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 23064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 2313a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 2323a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 2333a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 2343a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 23564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 2368e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 237898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 238898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 239898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 240898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 241898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 242898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 243898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 244898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 2458e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2508e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2517e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 252a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = QualType(); 2537e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = 0; 254a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = QualType(); 2558baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = 0; 2568baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 257a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 25833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 25933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 26033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 263464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 264464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 265464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 266a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 267b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 268b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 269b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 270b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 271b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 272b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 273b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 274b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 275b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 276b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 277b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 278b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 279b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 280af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// getDeclAlign - Return a conservative estimate of the alignment of the 281af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 282af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 283b7d0844c887a72064b624dc6df12cbe1441f69d0Daniel Dunbarunsigned ASTContext::getDeclAlignInBytes(const Decl *D) { 284dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 285dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 286dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 287dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, AA->getAlignment()); 288dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 289af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 290af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 291af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner // Incomplete or function types default to 1. 292dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman if (!T->isIncompleteType() && !T->isFunctionType()) { 293dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 294dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 295dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 296dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 297dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 298af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 299dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 300dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 301af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 302b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 303a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 304a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 305d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 3061d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 307f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner T = getCanonicalType(T); 3085e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 3095e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 310a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 31172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 31272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 31372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 31472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 31572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 31672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Should not see non-canonical or dependent types"); 31772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 31872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 3195d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 3205d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 32172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 322b1c2df99ba67ec6c29ac7dceaa4eb2c8cda4a017Chris Lattner assert(0 && "Incomplete types have no size!"); 323fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 324fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff assert(0 && "VLAs not implemented yet!"); 325fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 3261d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 327030d8846c7e520330007087e949f621989876e3aChris Lattner 32898be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 3299e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 330030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 331030d8846c7e520330007087e949f621989876e3aChris Lattner break; 3325c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 333213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 334030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 335030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 33698be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 3379e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 3384bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 3396fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 3406fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 3416fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // FIXME: this should probably be a target property. 3426fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman Align = 1 << llvm::Log2_32_Ceil(Align); 343030d8846c7e520330007087e949f621989876e3aChris Lattner break; 344030d8846c7e520330007087e949f621989876e3aChris Lattner } 3455d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 3469e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 347a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 348692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 349d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 350d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner assert(0 && "Incomplete types have no size!"); 3516f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 3529e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 3539e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 3546f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 355692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 356692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 357692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 3586f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 3599e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 3609e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 3616f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 36264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 36364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 36464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 36564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 366692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 3676f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 3689e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 3699e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 3706f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 371692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 3726f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 3739e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 3749e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 3756f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 376692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 3776f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 3789e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 3799e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 3806f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 381692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 3826f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 3839e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 3849e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 3856f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3866f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 3879e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 3889e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 3896f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3906f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 3915426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 3925426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 3936f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3946f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 3959e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 3969e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 3976f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 398a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 399bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 400f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case Type::FixedWidthInt: 401f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: This isn't precisely correct; the width/alignment should depend 402f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // on the available types for the target 403f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Width = cast<FixedWidthIntType>(T)->getWidth(); 404736166b38235cf6d0ffb67638960d95fb2afcbd6Chris Lattner Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 405f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Align = Width; 406f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman break; 407f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian case Type::ExtQual: 40898be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 40998be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 410f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian return getTypeInfo(QualType(cast<ExtQualType>(T)->getBaseType(), 0)); 411a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek case Type::ObjCQualifiedId: 4124bdf08770e75a068de2430e21a43b381aeb13b95Eli Friedman case Type::ObjCQualifiedClass: 41372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 4145426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 415f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 4166f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 417485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 418485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 419485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 420485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 421485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 422485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 423f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 424f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 4255426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 426f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 427f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 428f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 4297c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 4307c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 4317ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 4325d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 4336f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 4346f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 435bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 436f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 4378edef7c31d27fc9d5d163660702a8a7730a0d19fSebastian Redl // FIXME: This is not only platform- but also ABI-dependent. We follow 438f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // the GCC ABI, where pointers to data are one pointer large, pointers to 439f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // functions two pointers. But if we want to support ABI compatibility with 4408edef7c31d27fc9d5d163660702a8a7730a0d19fSebastian Redl // other compilers too, we need to delegate this completely to TargetInfo 4418edef7c31d27fc9d5d163660702a8a7730a0d19fSebastian Redl // or some ABI abstraction layer. 442f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 443f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl unsigned AS = Pointee.getAddressSpace(); 444f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width = Target.getPointerWidth(AS); 445f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 446f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 447f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Align = Target.getPointerAlign(AS); 448f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // GCC aligns at single pointer width. 449f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 4505d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 4515d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 4525d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 4535d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 45498be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 4559e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 4565d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 4575d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 4585d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 45944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 4601d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 46144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 46244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 46344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 46444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 46544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 46672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 46772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 4681d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 4691d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 4701d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 4718389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 4728389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 4738389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 4748389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 4758389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 4761d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 4777176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 4787176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 4791d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 4807176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 4817176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 4827176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 483dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 484a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 4857176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 486d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 487464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 4889e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 489a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 490a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 49134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 49234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 49334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 49434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 49534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 49634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 49734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 49834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner // Doubles should be naturally aligned if possible. 499e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar if (T->isSpecificBuiltinType(BuiltinType::Double)) 500e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar return std::max(ABIAlign, 64U); 50134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 50234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 50334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 50434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 50534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 5068b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 5078b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 5083b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar bool IsUnion, unsigned StructPacking, 5098b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 5103b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned FieldPacking = StructPacking; 5118b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 5128b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 5138b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 5143b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 5153b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: Should this override struct packing? Probably we want to 5163b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // take the minimum? 5173b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = FD->getAttr<PackedAttr>()) 5183b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldPacking = PA->getAlignment(); 5198b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5208b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 5218b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 5228b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 52332442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar FieldSize = 52432442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar BitWidthExpr->getIntegerConstantExprValue(Context).getZExtValue(); 5258b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5268b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 5278b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 5288b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 5298b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5303b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 5313b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 5323b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. 5333b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 5343b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 5358b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 5363b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 5373b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, FieldPacking); 5388b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 5398b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 5408b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5418b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 5428b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 5438b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 5448b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 5458b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5468b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 5478b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 5488b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 5498b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5508389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 5518389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 5528b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 5538b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 5548b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 5558b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 556c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 5578b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 5588b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5598b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 5608b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 5618b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 5628b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 5638b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5648b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5653b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 5663b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 5673b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. Additionally, the packing alignment must be at least 5683b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a byte for non-bitfields. 5693b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // 5703b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 5713b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 5723b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 5733b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, std::max(8U, FieldPacking)); 5748b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 5758b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 5768b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5778b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 5788b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 5798b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5808b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5818b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 5828b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 5838b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5848b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 5858b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 5868b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 5878b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5888b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 5898b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5908b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 5928b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 5938b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 5948b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 59588e469cf4240d4b898eacc0ad092019b022e0e50Fariborz Jahanianvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 59688e469cf4240d4b898eacc0ad092019b022e0e50Fariborz Jahanian std::vector<FieldDecl*> &Fields) const { 597a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian const ObjCInterfaceDecl *SuperClass = OI->getSuperClass(); 598a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (SuperClass) 599a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian CollectObjCIvars(SuperClass, Fields); 600a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 601a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 602a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian ObjCIvarDecl *IVDecl = (*I); 603a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 604a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 605a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 606a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 607a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 608a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// addRecordToClass - produces record info. for the class for its 609a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// ivars and all those inherited. 610a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// 611a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanianconst RecordDecl *ASTContext::addRecordToClass(const ObjCInterfaceDecl *D) 612a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian{ 613a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian const RecordDecl *&RD = ASTRecordForInterface[D]; 614a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (RD) 615a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian return RD; 616a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian std::vector<FieldDecl*> RecFields; 617a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian CollectObjCIvars(D, RecFields); 618a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecordDecl *NewRD = RecordDecl::Create(*this, TagDecl::TK_struct, 0, 619a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian D->getLocation(), 620a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian D->getIdentifier()); 621a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian /// FIXME! Can do collection of ivars and adding to the record while 622a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian /// doing it. 623a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (unsigned int i = 0; i != RecFields.size(); i++) { 624a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian FieldDecl *Field = FieldDecl::Create(*this, NewRD, 625a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecFields[i]->getLocation(), 626a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecFields[i]->getIdentifier(), 627a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecFields[i]->getType(), 6284afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor RecFields[i]->getBitWidth(), false); 629482b77d1cb4ca08391d1f749436f092a4cc24427Douglas Gregor NewRD->addDecl(Field); 630a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 631a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian NewRD->completeDefinition(*this); 632a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RD = NewRD; 633a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian return RD; 634a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 63544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 636efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian/// setFieldDecl - maps a field for the given Ivar reference node. 637efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian// 638efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanianvoid ASTContext::setFieldDecl(const ObjCInterfaceDecl *OI, 639efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian const ObjCIvarDecl *Ivar, 640efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian const ObjCIvarRefExpr *MRef) { 641efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian FieldDecl *FD = (const_cast<ObjCInterfaceDecl *>(OI))-> 642efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian lookupFieldDeclForIvar(*this, Ivar); 643efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian ASTFieldForIvarRef[MRef] = FD; 644efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian} 645efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian 64661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// getASTObjcInterfaceLayout - Get or compute information about the layout of 64761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// the specified Objective C, which indicates its size and ivar 64844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel/// position information. 64944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 65044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang PatelASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 65144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 65244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout *&Entry = ASTObjCInterfaces[D]; 65344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (Entry) return *Entry; 65444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 65544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 65644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 6576a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 6586a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned FieldCount = D->ivar_size(); 6596a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 6606a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel FieldCount++; 6616a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 6626a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 6636a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel uint64_t Size = SL.getSize(); 6646a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(Size, Alignment); 6656a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 66661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner // Super class is at the beginning of the layout. 66761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner NewEntry->SetFieldOffset(0, 0); 6686a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 6696a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(); 6706a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 6716a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 67244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Entry = NewEntry; 67344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 6743b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 6753b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 6763b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 67744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 67844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 67944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 68044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 68144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 68244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 68344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 68444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel for (ObjCInterfaceDecl::ivar_iterator IVI = D->ivar_begin(), 68544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel IVE = D->ivar_end(); IVI != IVE; ++IVI) { 68644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ObjCIvarDecl* Ivar = (*IVI); 6873b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar NewEntry->LayoutField(Ivar, i++, false, StructPacking, *this); 68844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 68944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 69044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 69144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 69244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 69344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 69444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 69544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 69688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 697464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 698464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 69998be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 7004b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 7014b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 7024bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 703464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 70488a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 705464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 7064bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 70788a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 70888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 70988a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 710464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 7114bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 712e267ff35b2f4e9d2b0d8bf24109d41cc7398b61bDouglas Gregor // FIXME: Avoid linear walk through the fields, if possible. 71344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->InitializeLayout(std::distance(D->field_begin(), D->field_end())); 71439ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 715464175bba1318bef7905122e9fda20cff926df78Chris Lattner 7163b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 7173b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 7183b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 7193b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 7204bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 7218b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 7228b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 7234bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 7244bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 7254bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 72644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor unsigned FieldIdx = 0; 727f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor for (RecordDecl::field_iterator Field = D->field_begin(), 728f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor FieldEnd = D->field_end(); 72944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; (void)++Field, ++FieldIdx) 73044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->LayoutField(*Field, FieldIdx, IsUnion, StructPacking, *this); 7314bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 7324bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 7334bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 7348b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->FinalizeLayout(); 7355d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 736464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 737464175bba1318bef7905122e9fda20cff926df78Chris Lattner 738a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 739a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 740a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 741a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 742f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 743f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 744f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 745f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 746b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 747b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 748b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 749b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 750b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr = QualType::GCNone; 751b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 752b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 753b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 754b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 755b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 756b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getAddressSpace() == 0 && 757b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 758b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttr = EQT->getObjCGCAttr(); 759b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 760b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 761f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 762b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Check if we've already instantiated this type. 763ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 764b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 765ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 766f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 767b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 768b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 769ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 770ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 771ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 772b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (!TypeNode->isCanonical()) { 773f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Canonical = getAddrSpaceQualType(CanT, AddressSpace); 774ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 775b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 776f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 777f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 778ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 779b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 780b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 781f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 782ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 783b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 784ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 785ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 786b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 787b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr) { 788d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 789b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 790d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 791d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 792b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 793b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 794b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 795b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 796b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned AddressSpace = 0; 797b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 798b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 799b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 800b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 801b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getObjCGCAttr() == QualType::GCNone && 802b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 803b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner AddressSpace = EQT->getAddressSpace(); 804b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 805b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 806d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 807d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check if we've already instantiated an gc qual'd type of this type. 808d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian llvm::FoldingSetNodeID ID; 809b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 810d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian void *InsertPos = 0; 811d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 812b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 813d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 814d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // If the base type isn't canonical, this won't be a canonical type either, 815d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // so fill in the canonical type field. 8165a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: Isn't this also not canonical if the base type is a array 8175a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // or pointer type? I can't find any documentation for objc_gc, though... 818d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType Canonical; 819d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (!T->isCanonical()) { 820b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Canonical = getObjCGCQualType(CanT, GCAttr); 821d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 822b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 823d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 824d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 825d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 826b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 827b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 828d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 829d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian Types.push_back(New); 830b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 831d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 832a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 8335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 8345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 8365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 8375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 8385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 8405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 8435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 849f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 8505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 853f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 855f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ComplexType *New = new (*this,8) ComplexType(T, Canonical); 8565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 8595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 861f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 862f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 863f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 864f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 865f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 866f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 867f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 868f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 8715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 8725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 8735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 8745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 8755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 8765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 8775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 8805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 8815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 8835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 8845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 886f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 8875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 890f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 892f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff PointerType *New = new (*this,8) PointerType(T, Canonical); 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 8955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8985618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 8995618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 9005618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 901296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 902296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 9035618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 9045618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 9055618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 9065618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 9075618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 9085618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 9095618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 9105618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 9115618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 912296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 9135618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 9145618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 9155618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 9165618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 9175618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 9185618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 9195618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 9205618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 921f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9225618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 923f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff BlockPointerType *New = new (*this,8) BlockPointerType(T, Canonical); 9245618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 9255618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 9265618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 9275618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 9285618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 9297c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 9307c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 9317c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getLValueReferenceType(QualType T) { 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9387c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 9397c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 9405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 9417c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 9425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 9435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 9445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 9467c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getLValueReferenceType(getCanonicalType(T)); 9477c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 9487c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 9497c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 9507c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 9517c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9527c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 9537c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 9547c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *New = new (*this,8) LValueReferenceType(T, Canonical); 9557c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 9567c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 9577c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 9587c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 9597c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 9607c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 9617c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 9627c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 9637c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 9647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 9657c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 9667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ReferenceType::Profile(ID, T); 9677c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 9687c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 9697c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 9707c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 9717c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 9727c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 9737c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 9747c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 9757c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 9767c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (!T->isCanonical()) { 9777c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getRValueReferenceType(getCanonicalType(T)); 9787c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 9795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 9817c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 982f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *New = new (*this,8) RValueReferenceType(T, Canonical); 9865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 9877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 9885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 991f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 992f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 993f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian RedlQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) 994f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl{ 995f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 996f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 997f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 998f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 999f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1000f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1001f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1002f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1003f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1004f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1005f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1006f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1007f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 1008f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (!T->isCanonical()) { 1009f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1010f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1011f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1012f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1013f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1014f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1015f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1016f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff MemberPointerType *New = new (*this,8) MemberPointerType(T, Cls, Canonical); 1017f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1018f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1019f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1020f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1021f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1022fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 1023fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 1024fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 1025c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff const llvm::APInt &ArySize, 1026c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1027c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 10285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 10290be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 10305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10327192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 10337192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 10345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 10385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 1040f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1041c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 10425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10437192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 10447192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1045f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1048566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ConstantArrayType *New = 1049f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 10507192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 10515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 10525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 10535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1055bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1056bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 1057c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 1058c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1059c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1060c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1061c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1062c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1063566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek VariableArrayType *New = 1064f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)VariableArrayType(EltTy,QualType(), NumElts, ASM, EltTypeQuals); 1065c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1066c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1067c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1068c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1069c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1070c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1071898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1072898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 1073898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// type. FIXME: We will need these to be uniqued, or at least 1074898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// comparable, at some point. 1075898574e7496ba8fd76290079d3a9d06954992734Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, Expr *NumElts, 1076898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 1077898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor unsigned EltTypeQuals) { 1078898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 1079898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1080898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1081898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Since we don't unique expressions, it isn't possible to unique 1082898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependently-sized array types. 1083898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1084566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek DependentSizedArrayType *New = 1085f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) DependentSizedArrayType(EltTy, QualType(), NumElts, 1086f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ASM, EltTypeQuals); 1087898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1088898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayTypes.push_back(New); 1089898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1090898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1091898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1092898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1093c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1094c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1095c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1096c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 10970be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1098c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1099c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 1100c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 1101c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1102c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1103c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1104c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1105c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1106c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1107c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1108c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 1109f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 11102bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1111c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1112c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1113c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1114c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1115f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11162bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1117c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1118f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff IncompleteArrayType *New = new (*this,8) IncompleteArrayType(EltTy, Canonical, 1119566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ASM, EltTypeQuals); 1120c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1121c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1122c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1123c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1124fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1125fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 112673322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 112773322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 112873322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1131f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 113273322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 113673322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 1145f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1149f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1151f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff VectorType *New = new (*this,8) VectorType(vecType, NumElts, Canonical); 11525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 11535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1157213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 115873322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1159213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 116073322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 116173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 1162f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1163213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 116473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 116573322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 116673322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 1167213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 116873322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 116973322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 117073322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 117173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 117273322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 117373322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 117473322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 117573322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 1176213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 117773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 117873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 117973322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1180f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 118173322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 1182f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ExtVectorType *New = new (*this,8) ExtVectorType(vecType, NumElts, Canonical); 118373322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 118473322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 118573322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 118673322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 118773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 118872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 119072564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getFunctionNoProtoType(QualType ResultTy) { 11915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 119472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType::Profile(ID, ResultTy); 11955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 119772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionNoProtoType *FT = 119872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 11995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 12005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 120372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy)); 12045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 120672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 120772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1208f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 121172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *New =new(*this,8)FunctionNoProtoType(ResultTy,Canonical); 12125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 121372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 121961710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1220971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1221971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned TypeQuals) { 12225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 12235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 122572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1226971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals); 12275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 122972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionProtoType *FTP = 123072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 12315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 12325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 12365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 12385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 12405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1245f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1247f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 12485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 12497fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis isVariadic, TypeQuals); 12505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 125272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 125372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1254f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 125772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1258566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek // for a variable size array (for parameter types) at the end of them. 125972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *FTP = 126072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1261c0ac4923f08b25ae973a8ee7942cf3eb89da57b7Steve Naroff NumArgs*sizeof(QualType), 8); 126272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1263971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals, Canonical); 12645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 126572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 12675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12692ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 12702ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 12714b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 12721e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 12732ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 12742ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 12751e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 12762ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1277fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1278fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 1279fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor } else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 12802ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 128149aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1282c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1283566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1284566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1285f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1286f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) RecordType(Record); 1287566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek } 1288566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1289566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1290566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1291f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1292f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) EnumType(Enum); 12934b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 129449aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 12952ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 129649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 12974b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 129849aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 12992ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 13002ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 13015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 13025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 13035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 13045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 13055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1306f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 130772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Decl->TypeForDecl = new(*this,8) TypedefType(Type::Typedef, Decl, Canonical); 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 13095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 13105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1312a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 13133536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 1314a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCInterfaceType(ObjCInterfaceDecl *Decl) { 13153536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 13163536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1317f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new(*this,8) ObjCInterfaceType(Type::ObjCInterface, Decl); 13183536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 13193536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 13203536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 13213536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1322f3710babc1ba40779c0fc64e6657cfc84dee7545Fariborz Jahanian/// buildObjCInterfaceType - Returns a new type for the interface 1323f3710babc1ba40779c0fc64e6657cfc84dee7545Fariborz Jahanian/// declaration, regardless. It also removes any previously built 1324f3710babc1ba40779c0fc64e6657cfc84dee7545Fariborz Jahanian/// record declaration so caller can rebuild it. 1325f3710babc1ba40779c0fc64e6657cfc84dee7545Fariborz JahanianQualType ASTContext::buildObjCInterfaceType(ObjCInterfaceDecl *Decl) { 1326f3710babc1ba40779c0fc64e6657cfc84dee7545Fariborz Jahanian const RecordDecl *&RD = ASTRecordForInterface[Decl]; 1327f3710babc1ba40779c0fc64e6657cfc84dee7545Fariborz Jahanian if (RD) 1328f3710babc1ba40779c0fc64e6657cfc84dee7545Fariborz Jahanian RD = 0; 1329f3710babc1ba40779c0fc64e6657cfc84dee7545Fariborz Jahanian Decl->TypeForDecl = new(*this,8) ObjCInterfaceType(Type::ObjCInterface, Decl); 1330f3710babc1ba40779c0fc64e6657cfc84dee7545Fariborz Jahanian Types.push_back(Decl->TypeForDecl); 1331f3710babc1ba40779c0fc64e6657cfc84dee7545Fariborz Jahanian return QualType(Decl->TypeForDecl, 0); 1332f3710babc1ba40779c0fc64e6657cfc84dee7545Fariborz Jahanian} 1333f3710babc1ba40779c0fc64e6657cfc84dee7545Fariborz Jahanian 1334fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 1335fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// parameter with the given depth, index, and (optionally) name. 1336fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas GregorQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 1337fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1338fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 1339fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType::Profile(ID, Depth, Index, Name); 1340fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 1341fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType *TypeParm 1342fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1343fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1344fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1345fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1346fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1347fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (Name) 1348fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, Name, 1349fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor getTemplateTypeParmType(Depth, Index)); 1350fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else 1351fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index); 1352fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1353fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1354fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1355fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1356fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1357fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1358fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 135955f6b14230c94272efbbcdd89a92224c8db9f225Douglas GregorQualType 136055f6b14230c94272efbbcdd89a92224c8db9f225Douglas GregorASTContext::getClassTemplateSpecializationType(TemplateDecl *Template, 136140808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor const TemplateArgument *Args, 136255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor unsigned NumArgs, 136355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor QualType Canon) { 136440808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor if (!Canon.isNull()) 136540808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor Canon = getCanonicalType(Canon); 1366fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 136755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor llvm::FoldingSetNodeID ID; 136840808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor ClassTemplateSpecializationType::Profile(ID, Template, Args, NumArgs); 136940808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 137055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor void *InsertPos = 0; 137155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor ClassTemplateSpecializationType *Spec 137255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor = ClassTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 137355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 137455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (Spec) 137555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 137655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 137740808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor void *Mem = Allocate((sizeof(ClassTemplateSpecializationType) + 137840808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 137940808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 8); 138040808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor Spec = new (Mem) ClassTemplateSpecializationType(Template, Args, NumArgs, 138140808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor Canon); 138255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 138355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor ClassTemplateSpecializationTypes.InsertNode(Spec, InsertPos); 138455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 138555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 138655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 138755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 1388e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas GregorQualType 1389ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1390e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1391e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1392ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1393e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1394e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 1395e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameType *T 1396e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1397e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1398e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1399e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1400ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor T = new (*this) QualifiedNameType(NNS, NamedType, 1401ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1402e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1403e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1404e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1405e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1406e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1407d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1408d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1409d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1410d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1411d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1412d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1413d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1414d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1415d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1416d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1417d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1418d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1419d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1420d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1421d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 1422d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType *T 1423d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1424d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1425d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1426d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1427d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1428d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1429d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 1430d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1431d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1432d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 143388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 143488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 143588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 143688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 14372e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 143888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 143988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 144088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 144188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 144288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 144388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 144488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 144588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 144688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 144788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 144888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 144988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 145088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 145188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 145288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1453065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1454065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1455a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1456a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 145788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 145888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 145988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 14604b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1461b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 14624b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 14634b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1464a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1465a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 14664b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 14674b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 14684b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1469a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1470f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 1471566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek 14724b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1473a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 14744b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 14754b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 14764b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 147788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 147888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 147962f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 1480c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 148188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 148288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 148388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1484c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 1485a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 1486c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1487c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 1488a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 148962f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 1490c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 1491c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1492c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 1493566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ObjCQualifiedIdType *QType = 1494f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedIdType(Protocols, NumProtocols); 1495c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 1496a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 1497c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 1498c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 1499c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 150072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 150172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 15029752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 15039752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 15049752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 150572564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 1506f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 150772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor TypeOfExprType *toe = new (*this,8) TypeOfExprType(tofExpr, Canonical); 15089752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 15099752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1510d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1511d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 15129752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 15139752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 15149752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 15159752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 15169752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1517d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1518f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 1519f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfType *tot = new (*this,8) TypeOfType(tofType, Canonical); 15209752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 15219752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1522d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1523d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 15245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 15255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 15265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1527d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 15282ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 15295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 15325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 15335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 15345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1535b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 15365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 153864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 153964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 154064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 154164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 154264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 154364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 154464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 154564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 154664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 154764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 154864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 154964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 155064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 155164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 15528b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 15538b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 15548b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1555b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 15568b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 15578b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1558e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1559e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1560e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1561e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 156277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 156377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 156477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 156577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 156677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 156777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 156877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 156977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1570c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1571c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1572c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1573c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1574c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1575c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1576c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1577c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1578c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1579c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1580c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1581c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1582c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1583c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1584c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1585c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1586c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1587c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1588c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1589c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1590c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1591c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1592c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1593898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 1594898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return getDependentSizedArrayType(NewEltTy, DSAT->getSizeExpr(), 1595898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1596898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier()); 1597898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1598c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1599c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1600c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1601c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1602c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1603c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1604d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 1605d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 1606d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (!NNS) 1607d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 1608d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1609d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 1610d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 1611d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 1612d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 1613d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 1614d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 1615d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1616d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 1617d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 1618d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 1619d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 1620d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1621d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 1622d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 1623d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 1624d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *Prefix = 0; 1625d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1626d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: This isn't the right check! 1627d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T->isDependentType()) 1628d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Prefix = getCanonicalNestedNameSpecifier(NNS->getPrefix()); 1629d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1630d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, Prefix, 1631d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 1632d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 1633d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1634d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1635d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 1636d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 1637d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 1638d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1639d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1640d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 1641d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 1642d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1643d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1644c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1645c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1646c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1647c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1648c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1649c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1650c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1651c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1652c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1653c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1654c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1655c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1656f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Make sure to look through type qualifiers (like ExtQuals) for the negative 1657c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1658c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1659c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1660c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1661c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1662c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1663c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1664c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1665c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1666c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1667c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1668c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1669c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1670c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1671c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1672c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1673f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Rip through ExtQualType's and typedefs to get to a concrete type. 1674c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1675f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(Ty)) { 1676f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian AddrSpace = EXTQT->getAddressSpace(); 1677f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Ty = EXTQT->getBaseType(); 1678c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1679c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1680c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1681c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1682c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1683c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1684c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1685c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1686c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1687c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1688c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1689c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1690c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1691c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1692c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1693c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1694c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1695c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1696c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1697c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1698f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian NewEltTy = getAddrSpaceQualType(NewEltTy, AddrSpace); 1699c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1700c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1701c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1702c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1703c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1704c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1705c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1706c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1707c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1708c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1709898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1710898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 1711898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 1712898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 1713898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 1714898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 1715898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1716898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier())); 1717c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1718c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1719c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1720c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1721c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 172277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 172377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 172477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1725e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1726e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1727e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1728e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1729e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1730e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1731e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1732c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1733c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1734c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1735c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1736c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1737c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1738e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1739c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1740e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1741e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1742c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1743e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1744e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1745d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel DunbarQualType ASTContext::getBaseElementType(const VariableArrayType *VAT) { 17466183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson QualType ElemTy = VAT->getElementType(); 17476183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 17486183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson if (const VariableArrayType *VAT = getAsVariableArrayType(ElemTy)) 17496183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return getBaseElementType(VAT); 17506183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 17516183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 17526183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 17536183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 17545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 17555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1756a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1757ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 17585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1759a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1760d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel Dunbar assert(T->getAsBuiltinType() && "getFloatingRank(): not a floating type"); 1761ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1762a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 17635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 17645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 17655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 17665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1769716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1770716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1771716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1772716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 17731361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 17741361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 17751361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 17761361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 17771361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1778716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1779f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1780f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1781f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1782f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1783f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 17841361b11066239ea15764a2a844405352d87296b3Chris Lattner 17851361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 17861361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 17871361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 17881361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 17891361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 17901361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 17915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 17957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 17967cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 17977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1798a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1799a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1800a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1801a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1802a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1803fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1804a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1805fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1806fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 18075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 18085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1809f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1810f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1811f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1812f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 1813f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1814f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 1815f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman T = ET->getDecl()->getIntegerType().getTypePtr(); 1816f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 1817f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 1818f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 1819f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 1820f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 1821f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 1822f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 1823f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 1824f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 18257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 18267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 1827f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 18287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 18297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 18307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 18317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 1832f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 18337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 18347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 1835f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 18367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 18377cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 1838f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 18397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 18407cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 1841f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 18427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 18437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 1844f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 1845f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1846f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1847f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 18487cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 18497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 18507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 18517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1852f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1853f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 18547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 18555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1856f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1857f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 18585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 18607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 18615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 18637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 18647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 18657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 18667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 18677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 18687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 18697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 18707cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 18717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 18727cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 18737cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 18747cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 18757cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 18767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 18777cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 18787cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 18797cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 18807cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 18817cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 18825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 18847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 18857cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 18867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 18875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 188871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 188971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 189071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 189171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 18926c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 189339ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1894df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 1895f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 189671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 189771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 189871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 1899f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 1900f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 190171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 1902f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 190371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 1904f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 190571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 190644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 190744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 190844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 190944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 191044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 19114afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 1912482b77d1cb4ca08391d1f749436f092a4cc24427Douglas Gregor CFConstantStringTypeDecl->addDecl(Field); 191344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 191444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 191544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 191671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 191771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 191871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 19198467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 1920b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1921bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 1922bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 1923bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 192444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 192544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 192644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 192744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 1928bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 1929bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 1930bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 1931bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 1932bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 1933bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 1934bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 1935bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 193644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 193744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 193844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 193944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 194044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 19414afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 1942482b77d1cb4ca08391d1f749436f092a4cc24427Douglas Gregor ObjCFastEnumerationStateTypeDecl->addDecl(Field); 194344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 1944bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 194544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 1946bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 1947bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1948bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 1949bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 1950bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1951e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 1952e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 19532d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 1954e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 1955bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 1956bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 195785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 195885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 195985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 196085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1961a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 196233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 1963a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 196498be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 196533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 196633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 196733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 196898be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 196933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 197033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 197198be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 197298be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 197333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 197433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1975a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 197633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 1977c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 1978e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1979c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1980ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 1981a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 198233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 19830d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 198433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 198533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 198633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 198733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 198898be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 198933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 199033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 199133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 199289951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 199389951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 199489951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 199589951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 1996a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 199733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 199833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 199933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 200033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 200133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 200233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 200333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 200433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 200589951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 200689951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 200789951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 20084306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian QualType PType = PVDecl->getOriginalType(); 20094306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 20104306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) 20114306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian // Use array's original type only if it has known number of 20124306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian // elements. 20134306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (!dyn_cast<ConstantArrayType>(AT)) 20144306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian PType = PVDecl->getType(); 2015ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 201633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 20174306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 20180d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 201933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 2020a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 202133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 202233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 202333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2024c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 202583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 2026c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 2027c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 202883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// Property attributes are stored as a comma-delimited C string. The simple 202983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// attributes readonly and bycopy are encoded as single characters. The 203083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// parametrized attributes, getter=name, setter=name, and ivar=name, are 203183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// encoded as single characters, followed by an identifier. Property types 203283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// are also encoded as a parametrized attribute. The characters used to encode 203383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 203483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 203583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 203683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 203783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 203883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 203983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 204083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 204183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 204283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 204383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 204483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 204583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 204683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 204783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 204883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 2049c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 2050c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 2051e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2052c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 2053c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 2054c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 2055c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2056c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 2057c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 2058c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 2059c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 2060c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 2061c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = CID->propimpl_begin(), e = CID->propimpl_end(); i != e; ++i) { 2062c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2063c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2064c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2065c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2066c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2067c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2068c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2069c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2070c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2071c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 207261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 2073c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 2074c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = OID->propimpl_begin(), e = OID->propimpl_end(); i != e; ++i) { 2075c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2076c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2077c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2078c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2079c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2080c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2081c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2082c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2083c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2084c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2085c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2086c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2087c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2088c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 2089c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2090c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 2091090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 2092090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 2093090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(PD->getType(), S, true, true, NULL, 2094090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 2095090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 2096c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2097c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 2098c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 2099c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2100c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 2101c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 2102c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 2103c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 2104c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2105c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2106c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2107c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 2108c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 2109c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 2110c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 2111c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2112090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 2113090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 2114090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian 2115c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 2116c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 2117077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 2118c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2119c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2120c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 2121c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 2122077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 2123c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2124c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2125c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 2126c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 2127c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 212839f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 2129c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2130c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2131c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 2132c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 2133c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2134a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 2135a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// Another legacy compatibility encoding: 32-bit longs are encoded as 2136c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian/// 'l' or 'L' , but not always. For typedefs, we need to use 2137a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 2138a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 2139a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 2140a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(PointeeTy.getTypePtr())) { 2141a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (const BuiltinType *BT = PointeeTy->getAsBuiltinType()) { 2142c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 2143c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2144a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 2145c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian else 2146c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 2147c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2148a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 2149a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2150a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2151a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 2152a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 21537d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 215443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FieldDecl *Field) const { 215582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 215682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 215782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 215882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 21595b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian getObjCEncodingForTypeImpl(T, S, true, true, Field, 21605b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 216182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 216282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 21638b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanianstatic void EncodeBitField(const ASTContext *Context, std::string& S, 21648b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian FieldDecl *FD) { 21658b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 21668b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 21678b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 21688b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian unsigned N = E->getIntegerConstantExprValue(*Ctx).getZExtValue(); 21698b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 21708b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 21718b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 21728b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 217382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 217482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 217582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 21765b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian FieldDecl *FD, 2177090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 2178090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool EncodingProperty) const { 2179e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 218043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD && FD->isBitField()) { 21818b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 218285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 218343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else { 218443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian char encoding; 218543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian switch (BT->getKind()) { 218643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian default: assert(0 && "Unhandled builtin type kind"); 218743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Void: encoding = 'v'; break; 218843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Bool: encoding = 'B'; break; 218943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_U: 219043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UChar: encoding = 'C'; break; 219143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UShort: encoding = 'S'; break; 219243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UInt: encoding = 'I'; break; 219372696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::ULong: 219472696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 219572696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 219672696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 219743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::ULongLong: encoding = 'Q'; break; 219843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_S: 219943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::SChar: encoding = 'c'; break; 220043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Short: encoding = 's'; break; 220143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Int: encoding = 'i'; break; 220272696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::Long: 220372696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 220472696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 220572696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 220643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongLong: encoding = 'q'; break; 220743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Float: encoding = 'f'; break; 220843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Double: encoding = 'd'; break; 220943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongDouble: encoding = 'd'; break; 221043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 221185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 221243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += encoding; 221343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 2214c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 2215a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (T->isObjCQualifiedIdType()) { 2216090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(getObjCIdType(), S, 2217090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandPointedToStructures, 2218090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandStructures, FD); 2219090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 2220090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Note that we do extended encoding of protocol qualifer list 2221090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Only when doing ivar or property encoding. 2222090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian const ObjCQualifiedIdType *QIDT = T->getAsObjCQualifiedIdType(); 2223090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2224090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian for (unsigned i =0; i < QIDT->getNumProtocols(); i++) { 2225090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCProtocolDecl *Proto = QIDT->getProtocols(i); 2226090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2227090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += Proto->getNameAsString(); 2228090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2229090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2230090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2231090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2232090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian return; 2233c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 2234c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 223585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 2236a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 2237a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 2238a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 2239a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 2240a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Also, do not emit the 'r' for anything but the outermost type! 2241a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(T.getTypePtr())) { 2242a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 2243a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2244a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2245a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2246a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2247a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian else if (OutermostType) { 2248a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 2249a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian while (P->getAsPointerType()) 2250a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian P = P->getAsPointerType()->getPointeeType(); 2251a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 2252a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2253a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2254a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2255a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2256a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 2257a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 2258a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 2259a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 2260a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 2261a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 2262a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 2263a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 2264a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 2265a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2266a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2267389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(PointeeTy)) { 2268c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 2269c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 2270c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian } 2271c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian else if (PointeeTy->isObjCInterfaceType()) { 2272bb99bdec7d3e704485baffae85938d24d35f0e0fFariborz Jahanian if (!EncodingProperty && 2273225dfd7d6b0ed14e6b7ad8dc121161b9f34ecfceFariborz Jahanian isa<TypedefType>(PointeeTy.getTypePtr())) { 22743e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // Another historical/compatibility reason. 22753e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // We encode the underlying type which comes out as 22763e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // {...}; 22773e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian S += '^'; 22783e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 22793e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian false, ExpandPointedToStructures, 22803e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian NULL); 22813e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian return; 22823e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian } 2283c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian S += '@'; 2284090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 228586f938b3d4a79fb9c337d351c8f3e5f1ff18f1b6Fariborz Jahanian const ObjCInterfaceType *OIT = 228686f938b3d4a79fb9c337d351c8f3e5f1ff18f1b6Fariborz Jahanian PointeeTy.getUnqualifiedType()->getAsObjCInterfaceType(); 2287090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCInterfaceDecl *OI = OIT->getDecl(); 2288adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2289adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += OI->getNameAsCString(); 2290090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian for (unsigned i =0; i < OIT->getNumProtocols(); i++) { 2291090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCProtocolDecl *Proto = OIT->getProtocol(i); 2292090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2293090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += Proto->getNameAsString(); 2294090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2295090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2296adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2297adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian } 2298c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian return; 2299389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff } else if (isObjCClassStructType(PointeeTy)) { 23008baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 23018baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2302a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 23038baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 23048baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2305c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 230685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 230785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 230885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 230985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 2310e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 231185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 231285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 231385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 231485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 231585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 231685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 2317a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 2318a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 2319a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 2320d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar false, ExpandPointedToStructures, 232143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 2322c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 2323c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 2324c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 2325559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 2326559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 2327559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 2328559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 2329559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2330559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2331559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 2332559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 233385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2334559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 2335559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 2336559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 2337559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 2338559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 2339559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 2340559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 234185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2342559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2343559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2344559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 2345559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 2346c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 2347c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 23486de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 234982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 2350d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 2351502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 2352502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 2353502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 2354502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 2355502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 2356502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 23570d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 23587d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 235944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (RecordDecl::field_iterator Field = RDecl->field_begin(), 236044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldEnd = RDecl->field_end(); 236144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 236243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 2363d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 236444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 2365d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 2366d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 2367d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 2368d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 236943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 237043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 237143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 2372d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 2373a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 2374a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 2375a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(qt, S, false, true, 237643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 2377d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 23787d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 23796de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 2380d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 23815e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 23828b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 23838b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 23848b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 23858b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 2386485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 238721a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 238843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } else if (T->isObjCInterfaceType()) { 238943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 239043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 239143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 239243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 239343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 239443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 239543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian std::vector<FieldDecl*> RecFields; 239643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 239743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian for (unsigned int i = 0; i != RecFields.size(); i++) { 239843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 239943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 240043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 240143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 240243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 240343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 240443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 240543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 240643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 240743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 2408f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 240985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 241085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2411a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 2412ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 2413ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 2414ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 2415ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 2416ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 2417ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 2418ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 2419ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 2420ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 2421ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 2422ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 2423ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 2424ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 2425ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 2426ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 2427b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 2428b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 2429b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 2430b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2431b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 2432b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 2433b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2434a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCIdType(TypedefDecl *TD) 24357e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 2436a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = getTypedefType(TD); 24377e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 24387e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 24397e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2440c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2441c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2442c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 24437e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2444c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2445c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2446c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 24477e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 24487e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 24497e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 2450a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCSelType(TypedefDecl *TD) 2451b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 2452a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCSelType = getTypedefType(TD); 2453b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2454b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 2455b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2456c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2457c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2458b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2459c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2460c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2461b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 2462b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 2463b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2464a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 2465390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 2466a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 2467390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 2468390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 2469a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCClassType(TypedefDecl *TD) 24708baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 2471a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = getTypedefType(TD); 24728baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 24738baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 24748baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 24758baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 24768baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 24778baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 24788baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 24798baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 24808baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 2481a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 2482a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 24832198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 24842198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 2485a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 24862198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 24872198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 2488b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 2489d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 2490d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 2491d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 2492b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 2493b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 2494b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 2495b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 2496b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 2497b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 2498b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 2499b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 2500b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 2501b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 2502b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 2503b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 2504b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 2505b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 2506b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 2507b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2508b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2509b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 2510b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2511b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2512fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 2513fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 2514fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 2515fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 2516fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 2517fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 2518fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 2519fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TD->getAttr<ObjCNSObjectAttr>()) 2520fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2521fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 2522fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return false; 2523fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 2524fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2525b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 2526b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 2527b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 2528b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 2529b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 2530d461777e23204fe8c480302d8ff76f5847605da6Steve Naroff if (Ty->isObjCQualifiedIdType()) 2531b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2532b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 25336ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // Blocks are objects. 25346ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff if (Ty->isBlockPointerType()) 25356ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff return true; 25366ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff 25376ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // All other object types are pointers. 2538b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (!Ty->isPointerType()) 2539b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 2540b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2541b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // Check to see if this is 'id' or 'Class', both of which are typedefs for 2542b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // pointer types. This looks for the typedef specifically, not for the 2543b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // underlying type. 25445fdeae17da443c50c62f602733d06193a71b170fEli Friedman if (Ty.getUnqualifiedType() == getObjCIdType() || 25455fdeae17da443c50c62f602733d06193a71b170fEli Friedman Ty.getUnqualifiedType() == getObjCClassType()) 2546b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2547b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2548b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 2549fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Ty->getAsPointerType()->getPointeeType()->isObjCInterfaceType()) 2550fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2551fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2552fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian // If is has NSObject attribute, OK as well. 2553fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return isObjCNSObjectType(Ty); 2554b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 2555b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 25564fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 25574fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 25584fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 25594fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz JahanianQualType::GCAttrTypes ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 2560b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttrs = QualType::GCNone; 25614fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 25624fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 2563b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 25644fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 2565a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // (or pointers to them) be treated as though they were declared 2566a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 2567a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (GCAttrs == QualType::GCNone) { 2568a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (isObjCObjectPointerType(Ty)) 2569a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian GCAttrs = QualType::Strong; 2570a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 2571a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian return getObjCGCAttrKind(Ty->getAsPointerType()->getPointeeType()); 2572a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 25734fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 2574b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 25754fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 25764fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 25776ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 25786ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 25796ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 2580770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 25811c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff/// typesAreBlockCompatible - This routine is called when comparing two 2582dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// block types. Types must be strictly compatible here. For example, 2583dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// C unfortunately doesn't produce an error for the following: 2584dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2585dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*emptyArgFunc)(); 2586dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*intArgList)(int) = emptyArgFunc; 2587dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2588dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// For blocks, we will produce an error for the following (similar to C++): 2589dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2590dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^emptyArgBlock)(); 2591dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^intArgBlock)(int) = emptyArgBlock; 2592dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2593dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// FIXME: When the dust settles on this integration, fold this into mergeTypes. 2594dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 25951c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroffbool ASTContext::typesAreBlockCompatible(QualType lhs, QualType rhs) { 2596c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *lbase = lhs->getAsFunctionType(); 2597c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *rbase = rhs->getAsFunctionType(); 259872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 259972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 2600c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (lproto && rproto) 2601c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return !mergeTypes(lhs, rhs).isNull(); 2602c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return false; 26031c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff} 26041c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff 26056ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 26066ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 26076ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 26086ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 26096ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 26106ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 261161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 26126ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 26136ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 26143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 26156ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 26166ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 26176ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 26183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 26193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 26206ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 26216ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 26226ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 26236ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 26246ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 26256ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 26266ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 26276ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 26286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 26296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 26306ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 26316ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 26326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 26336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 26346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 26356ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 26366ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 26376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 26386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 263991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // All LHS protocols must have a presence on the RHS. 264091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff assert(LHSP->qual_begin() != LHSP->qual_end() && "Empty LHS protocol list?"); 264191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 264291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(), 264391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPE = LHSP->qual_end(); 264491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 264591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 264691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 264791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 264891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 264991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(), 265091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSPE = RHSP->qual_end(); 265191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff !RHSImplementsProtocol && (RHSPI != RHSPE); RHSPI++) { 265291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) 265391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 265491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 265591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 265691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 265791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 265891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 265991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 266091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 26616ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 26626ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 2663389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 2664389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 2665389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const PointerType *LHSPT = LHS->getAsPointerType(); 2666389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const PointerType *RHSPT = RHS->getAsPointerType(); 2667389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2668389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (!LHSPT || !RHSPT) 2669389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 2670389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2671389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff QualType lhptee = LHSPT->getPointeeType(); 2672389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff QualType rhptee = RHSPT->getPointeeType(); 2673389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const ObjCInterfaceType* LHSIface = lhptee->getAsObjCInterfaceType(); 2674389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const ObjCInterfaceType* RHSIface = rhptee->getAsObjCInterfaceType(); 2675389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // ID acts sort of like void* for ObjC interfaces 2676389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (LHSIface && isObjCIdStructType(rhptee)) 2677389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return true; 2678389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (RHSIface && isObjCIdStructType(lhptee)) 2679389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return true; 2680389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (!LHSIface || !RHSIface) 2681389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 2682389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return canAssignObjCInterfaces(LHSIface, RHSIface) || 2683389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff canAssignObjCInterfaces(RHSIface, LHSIface); 2684389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 2685389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2686ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 2687ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 2688ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 2689ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 26903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 26913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 26923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 26933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 26943d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 26953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 26963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 269772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 269872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 26993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 27003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 27013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 27023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 27033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 27043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 270561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 270661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 270761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 270861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 27093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 27103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 27113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 27123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 27133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 27143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 27153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 27163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 27173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 27183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 27193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 27203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 27213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 27227fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 27237fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 27247fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 27253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 27263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 27273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 27283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 27293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 27303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 27313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 27323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 273361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 273461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 273561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 273661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 27373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 27383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 27393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 27403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 27417fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 27423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 27433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 27443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 27453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 27463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 274772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 27483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 27493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 27503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 27513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 27523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 27533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 27543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 27553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 27563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 27573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 27583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 27593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 27603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 27613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 27623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 27633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 27643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 27653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 27667fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 27677fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 27683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 27693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 27703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 27713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 277272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return getFunctionNoProtoType(retType); 27733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 27743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 27753d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 277643d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 277743d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 277843d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 27797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 27807c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 27813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 27823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 27837c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 27847c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 27853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 2786c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 27873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 2788c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 27893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 27903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 27913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 27923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 2793f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 27943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 27953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 27963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 27973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 27985a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Note that we handle extended qualifiers later, in the 27995a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // case for ExtQualType. 28005a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers()) 28013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 28023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 28033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 28043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 2805f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 28061adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 28071adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 28081adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 28091adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 28104c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 28114c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 2812a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 2813a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 2814a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 2815a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 2816a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 2817213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 2818213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 2819213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 2820ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 2821b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 2822b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 2823b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 28243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 28254e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 28264e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 28275fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 28285fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 28295fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 28305fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // ID acts sort of like void* for ObjC interfaces 28315fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && isObjCIdStructType(RHS)) 28325fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 28335fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (RHSIface && isObjCIdStructType(LHS)) 28345fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return RHS; 28355fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 2836bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // ID is compatible with all qualified id types. 2837bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (LHS->isObjCQualifiedIdType()) { 2838bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) { 2839bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2840389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(pType)) 2841bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2842bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2843bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2844bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2845bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2846bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2847bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2848bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2849bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2850bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (RHS->isObjCQualifiedIdType()) { 2851bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) { 2852bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2853389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(pType)) 2854bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2855bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2856bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2857bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2858bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2859bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2860bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2861bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2862bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 28631adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 28641adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 28653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 28663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 28673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 2868bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 28693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 28703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 28713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 2872bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 28731adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 28743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2875ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 28763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 28774a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 28781adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 287972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 288072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 288172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 288272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 288372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 288472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 288572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 288672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 28877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 28887c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 288972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 289072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 289172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 289272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 289372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 289472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 289572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 289672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 289772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 289872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 289972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 290072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 29011adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 29023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 29033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 29043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 29053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 29063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 29073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 290861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 290961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 291061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 291161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 29123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 29133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 2914c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 2915c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 2916c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 2917c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 2918c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 2919c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 2920c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 2921c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 2922c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 2923c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 2924c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 2925c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 2926c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 29271adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 29283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 29293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 29303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 29313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 29323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 29333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 29353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 29363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 29373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 293861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 293961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 294061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 294161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 29423bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 29433bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 29443bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 29453bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 29463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 29473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 294861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 294961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 295061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 295161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 29523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 29533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 29543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 29553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 29563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 29573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 29583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 29593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 29603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 29613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 29623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 29633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 29643bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 29653bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 296661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(),0); 29673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 29681adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 29693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 297072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 297172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 29723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 2973389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(LHS) && isObjCClassStructType(RHS)) return LHS; 2974389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCClassStructType(LHS) && isObjCIdStructType(RHS)) return LHS; 29753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 29761adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 29773cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 29783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 297964cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 298064cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 298164cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 29823cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 29835a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 29843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 29853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 298661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 298761490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 29885fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 29895a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 29905a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 29915fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 29925fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 29935fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 29945fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 29955fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 29965fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 29973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 299861490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 2999bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff case Type::ObjCQualifiedId: 3000bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Distinct qualified id's are not compatible. 3001bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 30025a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 30035a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 30045a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 30055a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::ObjCQualifiedClass: 30065a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct qualified classes are not compatible. 30075a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 30085a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::ExtQual: 30095a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: ExtQual types can be compatible even if they're not 30105a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // identical! 30115a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 30125a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // First attempt at an implementation, but I'm not really sure it's 30135a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // right... 30145a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#if 0 30155a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* LQual = cast<ExtQualType>(LHSCan); 30165a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* RQual = cast<ExtQualType>(RHSCan); 30175a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LQual->getAddressSpace() != RQual->getAddressSpace() || 30185a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LQual->getObjCGCAttr() != RQual->getObjCGCAttr()) 30195a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 30205a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman QualType LHSBase, RHSBase, ResultType, ResCanUnqual; 30215a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LHSBase = QualType(LQual->getBaseType(), 0); 30225a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman RHSBase = QualType(RQual->getBaseType(), 0); 30235a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = mergeTypes(LHSBase, RHSBase); 30245a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (ResultType.isNull()) return QualType(); 30255a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResCanUnqual = getCanonicalType(ResultType).getUnqualifiedType(); 30265a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getUnqualifiedType() == ResCanUnqual) 30275a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return LHS; 30285a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (RHSCan.getUnqualifiedType() == ResCanUnqual) 30295a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return RHS; 30305a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getAddrSpaceQualType(ResultType, LQual->getAddressSpace()); 30315a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getObjCGCQualType(ResultType, LQual->getObjCGCAttr()); 30325a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType.setCVRQualifiers(LHSCan.getCVRQualifiers()); 30335a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return ResultType; 30345a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#endif 3035ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 303672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 303772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 3038ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 30397192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 30405426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 3041ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 3042ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 304388054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 3044ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 3045ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 3046ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 3047f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 3048f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 3049f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 3050f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 3051ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 3052ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3053ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 3054ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 3055ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 3056ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 3057ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 3058ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 3059ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 3060ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 3061ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 3062ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 3063ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 3064ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 3065ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 3066ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 3067ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 3068ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 3069ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 3070ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 3071ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 3072ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 3073ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 3074ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 3075ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 3076ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3077ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 3078ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 3079ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 30805426bf6456a5aeac416a9150de157904d101c819Chris Lattner// Serialization Support 30815426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 30825426bf6456a5aeac416a9150de157904d101c819Chris Lattner 3083a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattnerenum { 3084a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner BasicMetadataBlock = 1, 3085a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner ASTContextBlock = 2, 3086a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner DeclsBlock = 3 3087a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner}; 3088a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3089a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattnervoid ASTContext::EmitAll(llvm::Serializer &S) const { 3090a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // ===---------------------------------------------------===/ 3091a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Serialize the "Translation Unit" metadata. 3092a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // ===---------------------------------------------------===/ 3093a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3094a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Emit ASTContext. 3095a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.EnterBlock(ASTContextBlock); 3096a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.EmitOwnedPtr(this); 3097a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.ExitBlock(); // exit "ASTContextBlock" 3098a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3099a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.EnterBlock(BasicMetadataBlock); 3100a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3101a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Block for SourceManager and Target. Allows easy skipping 3102a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // around to the block for the Selectors during deserialization. 3103a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.EnterBlock(); 3104a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3105a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Emit the SourceManager. 3106a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.Emit(getSourceManager()); 3107a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3108a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Emit the Target. 3109a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.EmitPtr(&Target); 3110a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.EmitCStr(Target.getTargetTriple()); 3111a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3112a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.ExitBlock(); // exit "SourceManager and Target Block" 3113a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3114a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Emit the Selectors. 3115a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.Emit(Selectors); 3116a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3117a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Emit the Identifier Table. 3118a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.Emit(Idents); 3119a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3120a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.ExitBlock(); // exit "BasicMetadataBlock" 3121a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner} 3122a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3123a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 31247192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek/// Emit - Serialize an ASTContext object to Bitcode. 31257192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenekvoid ASTContext::Emit(llvm::Serializer& S) const { 3126e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek S.Emit(LangOpts); 31275451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(SourceMgr); 31285451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Target); 31295451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Idents); 31305451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Selectors); 31317192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 3132fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // Emit the size of the type vector so that we can reserve that size 3133fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // when we reconstitute the ASTContext object. 3134a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek S.EmitInt(Types.size()); 3135a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 313603ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (std::vector<Type*>::const_iterator I=Types.begin(), E=Types.end(); 313703ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek I!=E;++I) 313803ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek (*I)->Emit(S); 3139a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 3140ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis S.EmitOwnedPtr(TUDecl); 3141ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 3142a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl); 31437192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek} 31447192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 3145a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris LattnerASTContext* ASTContext::CreateAll(llvm::Deserializer &Dezr, 3146a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner FileManager &FMgr) { 3147a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // ===---------------------------------------------------===/ 3148a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Deserialize the "Translation Unit" metadata. 3149a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // ===---------------------------------------------------===/ 3150a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3151a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Skip to the BasicMetaDataBlock. First jump to ASTContextBlock 3152a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // (which will appear earlier) and record its location. 3153a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3154a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner bool FoundBlock = Dezr.SkipToBlock(ASTContextBlock); 3155a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner assert (FoundBlock); 3156a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3157a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner llvm::Deserializer::Location ASTContextBlockLoc = 3158a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner Dezr.getCurrentBlockLocation(); 3159a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3160a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner FoundBlock = Dezr.SkipToBlock(BasicMetadataBlock); 3161a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner assert (FoundBlock); 3162a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3163a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Read the SourceManager. 3164a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner SourceManager::CreateAndRegister(Dezr, FMgr); 3165a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3166a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner { // Read the TargetInfo. 3167a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner llvm::SerializedPtrID PtrID = Dezr.ReadPtrID(); 3168a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner char* triple = Dezr.ReadCStr(NULL,0,true); 3169a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner Dezr.RegisterPtr(PtrID, TargetInfo::CreateTargetInfo(std::string(triple))); 3170a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner delete [] triple; 3171a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner } 3172a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3173a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // For Selectors, we must read the identifier table first because the 3174a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // SelectorTable depends on the identifiers being already deserialized. 3175a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner llvm::Deserializer::Location SelectorBlkLoc = Dezr.getCurrentBlockLocation(); 3176a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner Dezr.SkipBlock(); 3177a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3178a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Read the identifier table. 3179a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner IdentifierTable::CreateAndRegister(Dezr); 3180a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3181a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Now jump back and read the selectors. 3182a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner Dezr.JumpTo(SelectorBlkLoc); 3183a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner SelectorTable::CreateAndRegister(Dezr); 3184a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3185a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Now jump back to ASTContextBlock and read the ASTContext. 3186a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner Dezr.JumpTo(ASTContextBlockLoc); 3187a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner return Dezr.ReadOwnedPtr<ASTContext>(); 3188a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner} 3189a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 31900f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted KremenekASTContext* ASTContext::Create(llvm::Deserializer& D) { 3191e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 3192e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek // Read the language options. 3193e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LangOptions LOpts; 3194e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LOpts.Read(D); 3195e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 3196fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SourceManager &SM = D.ReadRef<SourceManager>(); 3197fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek TargetInfo &t = D.ReadRef<TargetInfo>(); 3198fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek IdentifierTable &idents = D.ReadRef<IdentifierTable>(); 3199fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels = D.ReadRef<SelectorTable>(); 32000ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 3201fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek unsigned size_reserve = D.ReadInt(); 3202fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 32032e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor ASTContext* A = new ASTContext(LOpts, SM, t, idents, sels, 32042e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor size_reserve); 3205fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 320603ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (unsigned i = 0; i < size_reserve; ++i) 320703ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek Type::Create(*A,i,D); 32080ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 3209ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis A->TUDecl = cast<TranslationUnitDecl>(D.ReadOwnedPtr<Decl>(*A)); 3210ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 3211a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: A->CFConstantStringTypeDecl = D.ReadOwnedPtr<RecordDecl>(); 3212fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 3213fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek return A; 3214fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek} 3215