ASTContext.cpp revision 6ab3524f72a6e64aa04973fa9433b5559abb3525
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" 26557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner#include "llvm/Support/MemoryBuffer.h" 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3361710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 3461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner TargetInfo &t, 35e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 36c0ac4923f08b25ae973a8ee7942cf3eb89da57b7Steve Naroff bool FreeMem, unsigned size_reserve) : 37ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 38ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor ObjCFastEnumerationStateTypeDecl(0), SourceMgr(SM), LangOpts(LOpts), 39ed0e497efc23ac4b35481a60a80579d355335e07Chris Lattner FreeMemory(FreeMem), Target(t), Idents(idents), Selectors(sels) { 40e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 41e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar InitBuiltinTypes(); 427644f0726c310ec4224085eaea5f9aff8b957d90Chris Lattner BuiltinInfo.InitializeBuiltins(idents, Target, LangOpts.NoBuiltin); 43e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 44e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 45e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 494b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 52b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 53b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 54b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 55b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 56b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 57b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 58b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 59b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 60b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 61b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 62b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 63b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const ObjCInterfaceDecl*, const ASTRecordLayout*>::iterator 64b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTObjCInterfaces.begin(), E = ASTObjCInterfaces.end(); 65b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 66b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 67b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 68b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 69b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 722349925b505564915f786583238266840801b689Chris Lattner llvm::DenseMap<const ObjCInterfaceDecl*, RecordDecl*>::iterator 73b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordForInterface.begin(), E = ASTRecordForInterface.end(); 74b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 752349925b505564915f786583238266840801b689Chris Lattner RecordDecl *R = (I++)->second; 76b74668edbc119880eb0a7e563432314432cb775dNuno Lopes R->Destroy(*this); 77b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 78b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 79b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 80ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor // Destroy nested-name-specifiers. 811ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor for (llvm::FoldingSet<NestedNameSpecifier>::iterator 821ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNS = NestedNameSpecifiers.begin(), 831ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor NNSEnd = NestedNameSpecifiers.end(); 84e7dcd782df0e1cc3a63e429a866098e69db39153Douglas Gregor NNS != NNSEnd; 851ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor /* Increment in loop */) 861ae0afaf14b7ce9bed33c1fe51077d01a313434dDouglas Gregor (*NNS++).Destroy(*this); 87ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 88ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor if (GlobalNestedNameSpecifier) 89ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor GlobalNestedNameSpecifier->Destroy(*this); 90ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor 91b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumBuiltin = 0, NumPointer = 0, NumArray = 0, NumFunctionP = 0; 98248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar unsigned NumVector = 0, NumComplex = 0, NumBlockPointer = 0; 997c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl unsigned NumFunctionNP = 0, NumTypeName = 0, NumTagged = 0; 1007c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl unsigned NumLValueReference = 0, NumRValueReference = 0, NumMemberPointer = 0; 1017c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumTagStruct = 0, NumTagUnion = 0, NumTagEnum = 0, NumTagClass = 0; 103a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCInterfaces = 0, NumObjCQualifiedInterfaces = 0; 104a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCQualifiedIds = 0; 10572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor unsigned NumTypeOfTypes = 0, NumTypeOfExprTypes = 0; 106c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor unsigned NumExtQual = 0; 107c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isa<BuiltinType>(T)) 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumBuiltin; 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<PointerType>(T)) 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumPointer; 114248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar else if (isa<BlockPointerType>(T)) 115248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar ++NumBlockPointer; 1167c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl else if (isa<LValueReferenceType>(T)) 1177c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ++NumLValueReference; 1187c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl else if (isa<RValueReferenceType>(T)) 1197c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ++NumRValueReference; 120f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl else if (isa<MemberPointerType>(T)) 121f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl ++NumMemberPointer; 1226d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<ComplexType>(T)) 1236d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumComplex; 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ArrayType>(T)) 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumArray; 1266d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<VectorType>(T)) 1276d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumVector; 12872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor else if (isa<FunctionNoProtoType>(T)) 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionNP; 13072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor else if (isa<FunctionProtoType>(T)) 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionP; 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<TypedefType>(T)) 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTypeName; 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (TagType *TT = dyn_cast<TagType>(T)) { 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTagged; 13639ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis switch (TT->getDecl()->getTagKind()) { 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown tagged type!"); 13839ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_struct: ++NumTagStruct; break; 13939ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_union: ++NumTagUnion; break; 14039ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_class: ++NumTagClass; break; 14139ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_enum: ++NumTagEnum; break; 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 143a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isa<ObjCInterfaceType>(T)) 144a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCInterfaces; 145a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedInterfaceType>(T)) 146a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedInterfaces; 147a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedIdType>(T)) 148a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedIds; 1496cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfType>(T)) 1506cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfTypes; 15172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor else if (isa<TypeOfExprType>(T)) 15272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor ++NumTypeOfExprTypes; 153c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor else if (isa<ExtQualType>(T)) 154c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor ++NumExtQual; 1553f128ad2691d299b96663da85a9e069c4081ea7cSteve Naroff else { 156beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner QualType(T, 0).dump(); 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(0 && "Unknown type!"); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d builtin types\n", NumBuiltin); 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d pointer types\n", NumPointer); 163248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar fprintf(stderr, " %d block pointer types\n", NumBlockPointer); 1647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl fprintf(stderr, " %d lvalue reference types\n", NumLValueReference); 1657c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl fprintf(stderr, " %d rvalue reference types\n", NumRValueReference); 166f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl fprintf(stderr, " %d member pointer types\n", NumMemberPointer); 1676d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d complex types\n", NumComplex); 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d array types\n", NumArray); 1696d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d vector types\n", NumVector); 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with proto\n", NumFunctionP); 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with no proto\n", NumFunctionNP); 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d typename (typedef) types\n", NumTypeName); 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d tagged types\n", NumTagged); 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d struct types\n", NumTagStruct); 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d union types\n", NumTagUnion); 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d class types\n", NumTagClass); 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d enum types\n", NumTagEnum); 178a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek fprintf(stderr, " %d interface types\n", NumObjCInterfaces); 179beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner fprintf(stderr, " %d protocol qualified interface types\n", 180a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedInterfaces); 181c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian fprintf(stderr, " %d protocol qualified id types\n", 182a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedIds); 1836cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof types\n", NumTypeOfTypes); 18472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor fprintf(stderr, " %d typeof exprs\n", NumTypeOfExprTypes); 185c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor fprintf(stderr, " %d attribute-qualified types\n", NumExtQual); 1867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "Total bytes = %d\n", int(NumBuiltin*sizeof(BuiltinType)+ 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumPointer*sizeof(PointerType)+NumArray*sizeof(ArrayType)+ 1896d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner NumComplex*sizeof(ComplexType)+NumVector*sizeof(VectorType)+ 1907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl NumLValueReference*sizeof(LValueReferenceType)+ 1917c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl NumRValueReference*sizeof(RValueReferenceType)+ 192f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl NumMemberPointer*sizeof(MemberPointerType)+ 19372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor NumFunctionP*sizeof(FunctionProtoType)+ 19472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor NumFunctionNP*sizeof(FunctionNoProtoType)+ 1956cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeName*sizeof(TypedefType)+NumTagged*sizeof(TagType)+ 196c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor NumTypeOfTypes*sizeof(TypeOfType)+NumTypeOfExprTypes*sizeof(TypeOfExprType)+ 197c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor NumExtQual*sizeof(ExtQualType))); 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 202f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Types.push_back((R = QualType(new (*this,8) BuiltinType(K),0)).getTypePtr()); 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 2105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 21498be4943e8dc4f3905629a7102668960873cf863Chris Lattner if (Target.isCharSigned()) 2155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 2185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 2315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 2335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 2355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 23664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 2373a2503227c3db04a3619735127483263c1075ef7Chris Lattner if (LangOpts.CPlusPlus) // C++ 3.9.1p5 2383a2503227c3db04a3619735127483263c1075ef7Chris Lattner InitBuiltinType(WCharTy, BuiltinType::WChar); 2393a2503227c3db04a3619735127483263c1075ef7Chris Lattner else // C99 2403a2503227c3db04a3619735127483263c1075ef7Chris Lattner WCharTy = getFromTargetType(Target.getWCharType()); 24164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 2428e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 243898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 244898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 245898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 246898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 247898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 248898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 249898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 250898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 2518e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2568e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2577e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 258a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = QualType(); 2597e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = 0; 260a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = QualType(); 2618baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = 0; 2628baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 263a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 26433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 26533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 26633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 269464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 270464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 271464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 272a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 273b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 274b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 275b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 276b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 277b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 278b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 279b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 280b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 281b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 282b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 283b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 284b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 285b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 286af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// getDeclAlign - Return a conservative estimate of the alignment of the 287af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 288af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 289b7d0844c887a72064b624dc6df12cbe1441f69d0Daniel Dunbarunsigned ASTContext::getDeclAlignInBytes(const Decl *D) { 290dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman unsigned Align = Target.getCharWidth(); 291dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 292dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 293dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, AA->getAlignment()); 294dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 295af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 296af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 297af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner // Incomplete or function types default to 1. 298dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman if (!T->isIncompleteType() && !T->isFunctionType()) { 299dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 300dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman T = cast<ArrayType>(T)->getElementType(); 301dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 302dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 303dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman } 304af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 305dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman 306dcdafb6a701aa9d81edcb088915f58933315dc05Eli Friedman return Align / Target.getCharWidth(); 307af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 308b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 309a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 310a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 311d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 3121d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 313f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner T = getCanonicalType(T); 3145e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump uint64_t Width=0; 3155e301007e31e14c8ff647288e1b8bd8dbf8a5fe4Mike Stump unsigned Align=8; 316a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 31772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 31872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 31972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 32072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 32172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 32272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Should not see non-canonical or dependent types"); 32372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor break; 32472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 3255d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 3265d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 32772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 328b1c2df99ba67ec6c29ac7dceaa4eb2c8cda4a017Chris Lattner assert(0 && "Incomplete types have no size!"); 329fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 330fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff assert(0 && "VLAs not implemented yet!"); 331fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 3321d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 333030d8846c7e520330007087e949f621989876e3aChris Lattner 33498be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 3359e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 336030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 337030d8846c7e520330007087e949f621989876e3aChris Lattner break; 3385c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 339213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 340030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 341030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 34298be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 3439e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 3444bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 3456fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 3466fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 3476fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // FIXME: this should probably be a target property. 3486fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman Align = 1 << llvm::Log2_32_Ceil(Align); 349030d8846c7e520330007087e949f621989876e3aChris Lattner break; 350030d8846c7e520330007087e949f621989876e3aChris Lattner } 3515d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 3529e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 353a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 354692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 355d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 356d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner assert(0 && "Incomplete types have no size!"); 3576f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 3589e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 3599e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 3606f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 361692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 362692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 363692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 3646f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 3659e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 3669e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 3676f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 36864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 36964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 37064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 37164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 372692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 3736f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 3749e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 3759e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 3766f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 377692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 3786f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 3799e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 3809e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 3816f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 382692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 3836f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 3849e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 3859e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 3866f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 387692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 3886f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 3899e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 3909e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 3916f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3926f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 3939e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 3949e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 3956f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3966f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 3975426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 3985426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 3996f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 4006f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 4019e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 4029e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 4036f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 404a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 405bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 406f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case Type::FixedWidthInt: 407f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: This isn't precisely correct; the width/alignment should depend 408f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // on the available types for the target 409f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Width = cast<FixedWidthIntType>(T)->getWidth(); 410736166b38235cf6d0ffb67638960d95fb2afcbd6Chris Lattner Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 411f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Align = Width; 412f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman break; 413f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian case Type::ExtQual: 41498be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 41598be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 416f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian return getTypeInfo(QualType(cast<ExtQualType>(T)->getBaseType(), 0)); 417a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek case Type::ObjCQualifiedId: 4184bdf08770e75a068de2430e21a43b381aeb13b95Eli Friedman case Type::ObjCQualifiedClass: 41972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 4205426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 421f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 4226f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 423485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 424485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 425485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 426485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 427485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 428485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 429f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 430f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 4315426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 432f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 433f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 434f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 4357c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 4367c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 4377ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 4385d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 4396f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 4406f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 441bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 442f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 4438edef7c31d27fc9d5d163660702a8a7730a0d19fSebastian Redl // FIXME: This is not only platform- but also ABI-dependent. We follow 444f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // the GCC ABI, where pointers to data are one pointer large, pointers to 445f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // functions two pointers. But if we want to support ABI compatibility with 4468edef7c31d27fc9d5d163660702a8a7730a0d19fSebastian Redl // other compilers too, we need to delegate this completely to TargetInfo 4478edef7c31d27fc9d5d163660702a8a7730a0d19fSebastian Redl // or some ABI abstraction layer. 448f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 449f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl unsigned AS = Pointee.getAddressSpace(); 450f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width = Target.getPointerWidth(AS); 451f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 452f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 453f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Align = Target.getPointerAlign(AS); 454f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // GCC aligns at single pointer width. 455f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 4565d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 4575d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 4585d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 4595d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 46098be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 4619e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 4625d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 4635d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 4645d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 46544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 4661d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 46744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 46844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 46944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 47044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 47144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 47272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 47372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: { 4741d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 4751d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 4761d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 4778389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 4788389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 4798389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 4808389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 4818389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 4821d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 4837176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 4847176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 4851d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 4867176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 4877176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 4887176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 489dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 490a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 4917532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 4927532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 4937532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 4947532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 4957176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 496d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 497464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 4989e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 499a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 500a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 50134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 50234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 50334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 50434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 50534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 50634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 50734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 50834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner // Doubles should be naturally aligned if possible. 509e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar if (T->isSpecificBuiltinType(BuiltinType::Double)) 510e00d5c00f35163308a18ec1d3d2b9dfa1ecaf234Daniel Dunbar return std::max(ABIAlign, 64U); 51134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 51234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 51334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 51434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 51534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 5168b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 5178b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 5183b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar bool IsUnion, unsigned StructPacking, 5198b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 5203b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned FieldPacking = StructPacking; 5218b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 5228b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 5238b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 5243b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 5253b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: Should this override struct packing? Probably we want to 5263b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // take the minimum? 5273b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = FD->getAttr<PackedAttr>()) 5283b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldPacking = PA->getAlignment(); 5298b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5308b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 5318b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 5328b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 53332442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar FieldSize = 53432442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar BitWidthExpr->getIntegerConstantExprValue(Context).getZExtValue(); 5358b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5368b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 5378b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 5388b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 5398b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5403b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 5413b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 5423b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. 5433b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 5443b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 5458b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 5463b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 5473b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, FieldPacking); 5488b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 5498b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 5508b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5518b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 5528b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 5538b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 5548b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 5558b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5568b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 5578b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 5588b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 5598b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5608389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 5618389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 5628b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 5638b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 5648b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 5658b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 566c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 5678b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 5688b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5698b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 5708b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 5718b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 5728b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 5738b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5748b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5753b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 5763b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 5773b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. Additionally, the packing alignment must be at least 5783b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a byte for non-bitfields. 5793b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // 5803b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 5813b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 5823b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 5833b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, std::max(8U, FieldPacking)); 5848b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 5858b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 5868b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5878b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 5888b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 5898b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5908b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 5928b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 5938b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5948b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 5958b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 5968b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 5978b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5988b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 5998b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 6008b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 6018b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 6028b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 6038b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 6048b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 60588e469cf4240d4b898eacc0ad092019b022e0e50Fariborz Jahanianvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 6066ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor llvm::SmallVectorImpl<FieldDecl*> &Fields) { 607a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian const ObjCInterfaceDecl *SuperClass = OI->getSuperClass(); 608a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (SuperClass) 609a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian CollectObjCIvars(SuperClass, Fields); 610a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 611a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 612f1690858344968358131f8d5690d9ee458883000Chris Lattner ObjCIvarDecl *IVDecl = *I; 613a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 614a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 615a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 616af3e72285238369c2ea4ebd40a1c9a87bd3eabb7Fariborz Jahanian // look into properties. 6176ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(*this), 6186ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor E = OI->prop_end(*this); I != E; ++I) { 619f1690858344968358131f8d5690d9ee458883000Chris Lattner if (ObjCIvarDecl *IV = (*I)->getPropertyIvarDecl()) 620af3e72285238369c2ea4ebd40a1c9a87bd3eabb7Fariborz Jahanian Fields.push_back(cast<FieldDecl>(IV)); 621af3e72285238369c2ea4ebd40a1c9a87bd3eabb7Fariborz Jahanian } 622a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 623a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 624a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// addRecordToClass - produces record info. for the class for its 625a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// ivars and all those inherited. 626a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// 627f1690858344968358131f8d5690d9ee458883000Chris Lattnerconst RecordDecl *ASTContext::addRecordToClass(const ObjCInterfaceDecl *D) { 6282349925b505564915f786583238266840801b689Chris Lattner RecordDecl *&RD = ASTRecordForInterface[D]; 6292349925b505564915f786583238266840801b689Chris Lattner if (RD) { 6302349925b505564915f786583238266840801b689Chris Lattner // If we have a record decl already and it is either a definition or if 'D' 6312349925b505564915f786583238266840801b689Chris Lattner // is still a forward declaration, return it. 6322349925b505564915f786583238266840801b689Chris Lattner if (RD->isDefinition() || D->isForwardDecl()) 6332349925b505564915f786583238266840801b689Chris Lattner return RD; 6342349925b505564915f786583238266840801b689Chris Lattner } 6352349925b505564915f786583238266840801b689Chris Lattner 6362349925b505564915f786583238266840801b689Chris Lattner // If D is a forward declaration, then just make a forward struct decl. 6372349925b505564915f786583238266840801b689Chris Lattner if (D->isForwardDecl()) 6382349925b505564915f786583238266840801b689Chris Lattner return RD = RecordDecl::Create(*this, TagDecl::TK_struct, 0, 6392349925b505564915f786583238266840801b689Chris Lattner D->getLocation(), 6402349925b505564915f786583238266840801b689Chris Lattner D->getIdentifier()); 641f1690858344968358131f8d5690d9ee458883000Chris Lattner 642f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 643a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian CollectObjCIvars(D, RecFields); 6442349925b505564915f786583238266840801b689Chris Lattner 6452349925b505564915f786583238266840801b689Chris Lattner if (RD == 0) 6462349925b505564915f786583238266840801b689Chris Lattner RD = RecordDecl::Create(*this, TagDecl::TK_struct, 0, D->getLocation(), 6472349925b505564915f786583238266840801b689Chris Lattner D->getIdentifier()); 648a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian /// FIXME! Can do collection of ivars and adding to the record while 649a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian /// doing it. 65016ff705a594697f98b9473f9b7e7d378f331fe4bChris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 6516ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor RD->addDecl(*this, 6526ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor FieldDecl::Create(*this, RD, 6532349925b505564915f786583238266840801b689Chris Lattner RecFields[i]->getLocation(), 6542349925b505564915f786583238266840801b689Chris Lattner RecFields[i]->getIdentifier(), 6552349925b505564915f786583238266840801b689Chris Lattner RecFields[i]->getType(), 6562349925b505564915f786583238266840801b689Chris Lattner RecFields[i]->getBitWidth(), false)); 657a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 658f1690858344968358131f8d5690d9ee458883000Chris Lattner 6592349925b505564915f786583238266840801b689Chris Lattner RD->completeDefinition(*this); 660a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian return RD; 661a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 66244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 663efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian/// setFieldDecl - maps a field for the given Ivar reference node. 664efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian// 665efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanianvoid ASTContext::setFieldDecl(const ObjCInterfaceDecl *OI, 666efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian const ObjCIvarDecl *Ivar, 667efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian const ObjCIvarRefExpr *MRef) { 668da04639a40e01d8d2ee891c075b271fd272d3d53Chris Lattner ASTFieldForIvarRef[MRef] = OI->lookupFieldDeclForIvar(*this, Ivar); 669efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian} 670efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian 67161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// getASTObjcInterfaceLayout - Get or compute information about the layout of 67261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// the specified Objective C, which indicates its size and ivar 67344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel/// position information. 67444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 67544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang PatelASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 67644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 67744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout *&Entry = ASTObjCInterfaces[D]; 67844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (Entry) return *Entry; 67944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 68044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 68144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 6826a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 6830c7ce5bcfae60d999d52b80f43bbe08436f3bbd1Fariborz Jahanian // FIXME. Add actual count of synthesized ivars, instead of count 6840c7ce5bcfae60d999d52b80f43bbe08436f3bbd1Fariborz Jahanian // of properties which is the upper bound, but is safe. 6854af44129dd99a233087b5cdd60bbf2fd0b9553d4Daniel Dunbar unsigned FieldCount = 6866ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor D->ivar_size() + std::distance(D->prop_begin(*this), D->prop_end(*this)); 6876a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 6886a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel FieldCount++; 6896a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 6906a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 6916a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel uint64_t Size = SL.getSize(); 6926a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(Size, Alignment); 6936a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 69461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner // Super class is at the beginning of the layout. 69561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner NewEntry->SetFieldOffset(0, 0); 6966a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 6976a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(); 6986a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 6996a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 70044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Entry = NewEntry; 70144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 7023b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 7033b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 7043b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 70544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 70644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 70744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 70844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 70944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 71044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 71144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 71244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel for (ObjCInterfaceDecl::ivar_iterator IVI = D->ivar_begin(), 71344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel IVE = D->ivar_end(); IVI != IVE; ++IVI) { 71444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ObjCIvarDecl* Ivar = (*IVI); 7153b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar NewEntry->LayoutField(Ivar, i++, false, StructPacking, *this); 71644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 71718191886554407b4260c40165bc294c3ea732033Fariborz Jahanian // Also synthesized ivars 7186ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor for (ObjCInterfaceDecl::prop_iterator I = D->prop_begin(*this), 7196ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor E = D->prop_end(*this); I != E; ++I) { 72018191886554407b4260c40165bc294c3ea732033Fariborz Jahanian if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 72118191886554407b4260c40165bc294c3ea732033Fariborz Jahanian NewEntry->LayoutField(Ivar, i++, false, StructPacking, *this); 72218191886554407b4260c40165bc294c3ea732033Fariborz Jahanian } 72399eee3675e830ff367ae1fe35ce19fb49e7e4114Fariborz Jahanian 72444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 72544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 72644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 72744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 72844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 72944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 73088a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 731464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 732464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 73398be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 7344b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 7354b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 7364bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 737464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 73888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 739464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 7404bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 74188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 74288a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 74388a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 744464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 7454bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 746e267ff35b2f4e9d2b0d8bf24109d41cc7398b61bDouglas Gregor // FIXME: Avoid linear walk through the fields, if possible. 7476ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor NewEntry->InitializeLayout(std::distance(D->field_begin(*this), 7486ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor D->field_end(*this))); 74939ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 750464175bba1318bef7905122e9fda20cff926df78Chris Lattner 7513b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 7523b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 7533b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 7543b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 7554bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 7568b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 7578b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 7584bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 7594bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 7604bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 76144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor unsigned FieldIdx = 0; 7626ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor for (RecordDecl::field_iterator Field = D->field_begin(*this), 7636ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor FieldEnd = D->field_end(*this); 76444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; (void)++Field, ++FieldIdx) 76544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->LayoutField(*Field, FieldIdx, IsUnion, StructPacking, *this); 7664bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 7674bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 7684bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 7698b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->FinalizeLayout(); 7705d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 771464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 772464175bba1318bef7905122e9fda20cff926df78Chris Lattner 773a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 774a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 775a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 776a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 777f11284ac87daa613bc7b30db9f54bd716d123222Fariborz JahanianQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 778f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 779f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 780f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 781b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 782b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 783b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 784b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 785b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr = QualType::GCNone; 786b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 787b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 788b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 789b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 790b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 791b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getAddressSpace() == 0 && 792b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 793b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttr = EQT->getObjCGCAttr(); 794b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 795b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 796f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 797b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Check if we've already instantiated this type. 798ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 799b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 800ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 801f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 802b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 803b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 804ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 805ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 806ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 807b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (!TypeNode->isCanonical()) { 808f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Canonical = getAddrSpaceQualType(CanT, AddressSpace); 809ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 810b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 811f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 812f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 813ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 814b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 815b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 816f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 817ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 818b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 819ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 820ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 821b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris LattnerQualType ASTContext::getObjCGCQualType(QualType T, 822b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttr) { 823d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType CanT = getCanonicalType(T); 824b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (CanT.getObjCGCAttr() == GCAttr) 825d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return T; 826d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 827b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If we are composing extended qualifiers together, merge together into one 828b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // ExtQualType node. 829b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 830b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Type *TypeNode = T.getTypePtr(); 831b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner unsigned AddressSpace = 0; 832b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner 833b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner if (ExtQualType *EQT = dyn_cast<ExtQualType>(TypeNode)) { 834b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // If this type already has an address space specified, it cannot get 835b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // another one. 836b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner assert(EQT->getObjCGCAttr() == QualType::GCNone && 837b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner "Type cannot be in multiple addr spaces!"); 838b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner AddressSpace = EQT->getAddressSpace(); 839b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner TypeNode = EQT->getBaseType(); 840b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner } 841d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 842d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check if we've already instantiated an gc qual'd type of this type. 843d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian llvm::FoldingSetNodeID ID; 844b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType::Profile(ID, TypeNode, AddressSpace, GCAttr); 845d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian void *InsertPos = 0; 846d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (ExtQualType *EXTQy = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 847b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(EXTQy, CVRQuals); 848d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 849d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // If the base type isn't canonical, this won't be a canonical type either, 850d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // so fill in the canonical type field. 8515a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: Isn't this also not canonical if the base type is a array 8525a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // or pointer type? I can't find any documentation for objc_gc, though... 853d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian QualType Canonical; 854d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian if (!T->isCanonical()) { 855b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner Canonical = getObjCGCQualType(CanT, GCAttr); 856d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 857b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner // Update InsertPos, the previous call could have invalidated it. 858d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualType *NewIP = ExtQualTypes.FindNodeOrInsertPos(ID, InsertPos); 859d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 860d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 861b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner ExtQualType *New = 862b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner new (*this, 8) ExtQualType(TypeNode, Canonical, AddressSpace, GCAttr); 863d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian ExtQualTypes.InsertNode(New, InsertPos); 864d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian Types.push_back(New); 865b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return QualType(New, CVRQuals); 866d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 867a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 8705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 8715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 8725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 8735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 8745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 8755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 8785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 8795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 8815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 8825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 884f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 8855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 888f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 890f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ComplexType *New = new (*this,8) ComplexType(T, Canonical); 8915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 896f98aba35e6c3da5aae61843fc01334939e4e12ecEli FriedmanQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 897f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 898f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 899f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman FixedWidthIntType *&Entry = Map[Width]; 900f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!Entry) 901f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman Entry = new FixedWidthIntType(Width, Signed); 902f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return QualType(Entry, 0); 903f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman} 9045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 9065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 9095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 9105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 9115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 9125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 9185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 9195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 921f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 9225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 925f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 927f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff PointerType *New = new (*this,8) PointerType(T, Canonical); 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9335618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 9345618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 9355618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 936296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 937296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 9385618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 9395618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 9405618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 9415618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 9425618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 9435618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 9445618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 9455618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 9465618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 947296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 9485618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 9495618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 9505618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 9515618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 9525618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 9535618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 9545618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 9555618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 956f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9575618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 958f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff BlockPointerType *New = new (*this,8) BlockPointerType(T, Canonical); 9595618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 9605618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 9615618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 9625618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 9635618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 9647c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getLValueReferenceType - Return the uniqued reference to the type for an 9657c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// lvalue reference to the specified type. 9667c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getLValueReferenceType(QualType T) { 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 9685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 9695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 9705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 9715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9737c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueReferenceType *RT = 9747c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 9767c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 9775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 9785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 9795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 9817c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getLValueReferenceType(getCanonicalType(T)); 9827c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 9837c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Get the new insert position for the node we care about. 9847c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *NewIP = 9857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 9867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9877c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl } 9887c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 9897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceType *New = new (*this,8) LValueReferenceType(T, Canonical); 9907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Types.push_back(New); 9917c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl LValueReferenceTypes.InsertNode(New, InsertPos); 9927c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(New, 0); 9937c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl} 9947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 9957c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// getRValueReferenceType - Return the uniqued reference to the type for an 9967c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl/// rvalue reference to the specified type. 9977c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian RedlQualType ASTContext::getRValueReferenceType(QualType T) { 9987c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 9997c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // structure. 10007c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl llvm::FoldingSetNodeID ID; 10017c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl ReferenceType::Profile(ID, T); 10027c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10037c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl void *InsertPos = 0; 10047c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (RValueReferenceType *RT = 10057c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 10067c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl return QualType(RT, 0); 10077c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10087c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // If the referencee type isn't canonical, this won't be a canonical type 10097c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // either, so fill in the canonical type field. 10107c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl QualType Canonical; 10117c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (!T->isCanonical()) { 10127c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl Canonical = getRValueReferenceType(getCanonicalType(T)); 10137c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10157c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *NewIP = 10167c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1017f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10207c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceType *New = new (*this,8) RValueReferenceType(T, Canonical); 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 10227c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl RValueReferenceTypes.InsertNode(New, InsertPos); 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1026f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 1027f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 1028f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian RedlQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) 1029f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl{ 1030f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 1031f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 1032f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 1033f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 1034f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1035f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 1036f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 1037f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1038f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 1039f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1040f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 1041f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 1042f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 1043f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (!T->isCanonical()) { 1044f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1045f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1046f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 1047f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 1048f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1049f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1050f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1051f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff MemberPointerType *New = new (*this,8) MemberPointerType(T, Cls, Canonical); 1052f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 1053f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 1054f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 1055f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 1056f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1057fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 1058fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 1059fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 1060c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff const llvm::APInt &ArySize, 1061c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1062c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 10635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 10640be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 10655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10677192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 10687192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 10705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 10725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 10735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 10745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 1075f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 1076c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 10775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10787192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 10797192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1080f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1083566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ConstantArrayType *New = 1084f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 10857192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 10875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1090bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 1091bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 1092c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 1093c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 1094c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 1095c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 1096c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 1097c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1098566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek VariableArrayType *New = 1099f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)VariableArrayType(EltTy,QualType(), NumElts, ASM, EltTypeQuals); 1100c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1101c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 1102c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1103c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1104c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 1105c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1106898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 1107898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 1108898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// type. FIXME: We will need these to be uniqued, or at least 1109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// comparable, at some point. 1110898574e7496ba8fd76290079d3a9d06954992734Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, Expr *NumElts, 1111898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 1112898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor unsigned EltTypeQuals) { 1113898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 1114898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 1115898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1116898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Since we don't unique expressions, it isn't possible to unique 1117898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependently-sized array types. 1118898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1119566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek DependentSizedArrayType *New = 1120f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) DependentSizedArrayType(EltTy, QualType(), NumElts, 1121f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ASM, EltTypeQuals); 1122898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1123898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayTypes.push_back(New); 1124898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 1125898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 1126898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 1127898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1128c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 1129c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 1130c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 1131c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 11320be2ef2321b1283ead38ebeb83b451335d90e0feChris Lattner IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 1133c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1134c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 1135c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 1136c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1137c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 1138c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1139c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 1140c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 1141c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 1142c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1143c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 1144f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 11452bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 1146c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1147c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 1148c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 1149c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1150f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11512bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 1152c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1153f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff IncompleteArrayType *New = new (*this,8) IncompleteArrayType(EltTy, Canonical, 1154566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ASM, EltTypeQuals); 1155c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 1156c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 1157c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 1158c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 1159fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 1160fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 116173322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 116273322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 116373322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 11645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 11655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1166f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 116773322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 117173322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 1180f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1184f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1186f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff VectorType *New = new (*this,8) VectorType(vecType, NumElts, Canonical); 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 11885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 11905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1192213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 119373322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1194213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 119573322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 119673322924127c873c13101b705dd823f5539ffa5fSteve Naroff 1197f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1198213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 119973322924127c873c13101b705dd823f5539ffa5fSteve Naroff 120073322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 120173322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 1202213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 120373322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 120473322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 120573322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 120673322924127c873c13101b705dd823f5539ffa5fSteve Naroff 120773322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 120873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 120973322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 121073322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 1211213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 121273322924127c873c13101b705dd823f5539ffa5fSteve Naroff 121373322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 121473322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1215f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 121673322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 1217f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ExtVectorType *New = new (*this,8) ExtVectorType(vecType, NumElts, Canonical); 121873322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 121973322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 122073322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 122173322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 122273322924127c873c13101b705dd823f5539ffa5fSteve Naroff 122372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 12245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 122572564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getFunctionNoProtoType(QualType ResultTy) { 12265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 12275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 122972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType::Profile(ID, ResultTy); 12305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 123272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionNoProtoType *FT = 123372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 123872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy)); 12395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 124172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *NewIP = 124272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1243f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 124672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoType *New =new(*this,8)FunctionNoProtoType(ResultTy,Canonical); 12475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 124872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionNoProtoTypes.InsertNode(New, InsertPos); 12495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 12505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 12535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 125461710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1255971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1256971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned TypeQuals) { 12575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 12585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 12595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 126072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1261971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals); 12625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 126472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (FunctionProtoType *FTP = 126572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 12675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 12695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 12705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 12715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 12725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 12735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 12755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 12765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 12775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 12785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 12795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1280f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 12815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1282f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 12847fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis isVariadic, TypeQuals); 12855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 128772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *NewIP = 128872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1289f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 129272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // FunctionProtoType objects are allocated with extra bytes after them 1293566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek // for a variable size array (for parameter types) at the end of them. 129472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoType *FTP = 129572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1296c0ac4923f08b25ae973a8ee7942cf3eb89da57b7Steve Naroff NumArgs*sizeof(QualType), 8); 129772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1298971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals, Canonical); 12995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 130072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor FunctionProtoTypes.InsertNode(FTP, InsertPos); 13015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 13025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13042ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 13052ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 13064b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 13071e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 13082ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 13092ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 13101e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 13112ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 1312fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1313fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 1314fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor } else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 13152ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 131649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 1317c1efaecf0373f1a55c5ef4c234357cf726fc0600Douglas Gregor if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1318566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1319566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1320f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1321f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) RecordType(Record); 1322566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek } 1323566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1324566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1325566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1326f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1327f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) EnumType(Enum); 13284b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 132949aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 13302ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 133149aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 13324b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 133349aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 13342ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 13352ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 13365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 13375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 13385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 13395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 13405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1341f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 134272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor Decl->TypeForDecl = new(*this,8) TypedefType(Type::Typedef, Decl, Canonical); 13435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 13445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 13455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1347a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 13483536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 1349a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCInterfaceType(ObjCInterfaceDecl *Decl) { 13503536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 13513536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1352f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new(*this,8) ObjCInterfaceType(Type::ObjCInterface, Decl); 13533536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 13543536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 13553536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 13563536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1357fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 1358fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// parameter with the given depth, index, and (optionally) name. 1359fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas GregorQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 1360fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1361fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 1362fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType::Profile(ID, Depth, Index, Name); 1363fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 1364fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType *TypeParm 1365fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1366fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1367fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1368fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1369fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1370fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (Name) 1371fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, Name, 1372fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor getTemplateTypeParmType(Depth, Index)); 1373fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else 1374fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index); 1375fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1376fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1377fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1378fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1379fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1380fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1381fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 138255f6b14230c94272efbbcdd89a92224c8db9f225Douglas GregorQualType 13837532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorASTContext::getTemplateSpecializationType(TemplateName Template, 13847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const TemplateArgument *Args, 13857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor unsigned NumArgs, 13867532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualType Canon) { 138740808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor if (!Canon.isNull()) 138840808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor Canon = getCanonicalType(Canon); 1389fc705b84347e6fb4746a1a7e26949f64c2f2f358Douglas Gregor 139055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor llvm::FoldingSetNodeID ID; 13917532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType::Profile(ID, Template, Args, NumArgs); 139240808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 139355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor void *InsertPos = 0; 13947532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationType *Spec 13957532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 139655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 139755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (Spec) 139855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 139955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 14007532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *Mem = Allocate((sizeof(TemplateSpecializationType) + 140140808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor sizeof(TemplateArgument) * NumArgs), 140240808ce6ac04b102c3b56244a635d6b98eed6d97Douglas Gregor 8); 14037532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor Spec = new (Mem) TemplateSpecializationType(Template, Args, NumArgs, Canon); 140455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 14057532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 140655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 140755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 140855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 140955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 1410e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas GregorQualType 1411ab452ba8323d1985e08bade2bced588cddf2cc28Douglas GregorASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 1412e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualType NamedType) { 1413e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor llvm::FoldingSetNodeID ID; 1414ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor QualifiedNameType::Profile(ID, NNS, NamedType); 1415e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1416e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor void *InsertPos = 0; 1417e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameType *T 1418e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 1419e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor if (T) 1420e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1421e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1422ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor T = new (*this) QualifiedNameType(NNS, NamedType, 1423ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor getCanonicalType(NamedType)); 1424e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor Types.push_back(T); 1425e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor QualifiedNameTypes.InsertNode(T, InsertPos); 1426e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor return QualType(T, 0); 1427e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor} 1428e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor 1429d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 1430d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor const IdentifierInfo *Name, 1431d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType Canon) { 1432d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1433d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1434d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Canon.isNull()) { 1435d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1436d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (CanonNNS != NNS) 1437d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Canon = getTypenameType(CanonNNS, Name); 1438d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1439d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1440d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor llvm::FoldingSetNodeID ID; 1441d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType::Profile(ID, NNS, Name); 1442d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1443d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor void *InsertPos = 0; 1444d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameType *T 1445d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1446d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T) 1447d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1448d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1449d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T = new (*this) TypenameType(NNS, Name, Canon); 1450d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Types.push_back(T); 1451d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 1452d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return QualType(T, 0); 1453d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1454d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 14551734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorQualType 14561734317845d60307d474b5da8a8d33adbaf5e723Douglas GregorASTContext::getTypenameType(NestedNameSpecifier *NNS, 14571734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *TemplateId, 14581734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType Canon) { 14591734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 14601734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 14611734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (Canon.isNull()) { 14621734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 14631734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 14641734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 14651734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor const TemplateSpecializationType *CanonTemplateId 14661734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = CanonType->getAsTemplateSpecializationType(); 14671734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor assert(CanonTemplateId && 14681734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor "Canonical type must also be a template specialization type"); 14691734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Canon = getTypenameType(CanonNNS, CanonTemplateId); 14701734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 14711734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 14721734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 14731734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor llvm::FoldingSetNodeID ID; 14741734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType::Profile(ID, NNS, TemplateId); 14751734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 14761734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor void *InsertPos = 0; 14771734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameType *T 14781734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 14791734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (T) 14801734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 14811734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 14821734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor T = new (*this) TypenameType(NNS, TemplateId, Canon); 14831734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Types.push_back(T); 14841734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor TypenameTypes.InsertNode(T, InsertPos); 14851734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor return QualType(T, 0); 14861734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor} 14871734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 148888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 148988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 149088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 149188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 14922e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 149388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 149488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 149588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 149688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 149788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 149888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 149988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 150088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 150188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 150288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 150388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 150488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 150588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 150688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 150788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1508065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1509065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1510a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1511a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 151288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 151388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 151488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 15154b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1516b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 15174b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 15184b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1519a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1520a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 15214b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 15224b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 15234b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1524a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1525f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 1526566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek 15274b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1528a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 15294b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 15304b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 15314b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 153288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 153388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 153462f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 1535c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 153688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 153788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 153888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1539c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 1540a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 1541c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1542c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 1543a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 154462f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 1545c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 1546c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1547c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 1548566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ObjCQualifiedIdType *QType = 1549f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedIdType(Protocols, NumProtocols); 1550c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 1551a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 1552c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 1553c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 1554c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 155572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 155672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor/// TypeOfExprType AST's (since expression's are never shared). For example, 15579752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 15589752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 15599752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 156072564e73277e29f6db3305d1f27ba408abb7ed88Douglas GregorQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 1561f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 156272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor TypeOfExprType *toe = new (*this,8) TypeOfExprType(tofExpr, Canonical); 15639752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 15649752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1565d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1566d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 15679752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 15689752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 15699752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 15709752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 15719752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1572d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1573f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 1574f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfType *tot = new (*this,8) TypeOfType(tofType, Canonical); 15759752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 15769752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1577d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1578d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 15795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 15805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 15815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1582d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 15832ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 15845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 15875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 15885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 15895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1590b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 15915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 159364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 159464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 159564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 159664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 159764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 159864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 159964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 160064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 160164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 160264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 160364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 160464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 160564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 160664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 16078b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 16088b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 16098b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1610b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 16118b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 16128b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1613e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1614e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1615e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1616e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 161777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 161877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 161977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 162077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 162177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 162277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 162377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 162477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1625c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1626c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1627c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1628c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1629c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1630c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1631c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1632c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1633c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1634c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1635c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1636c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1637c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1638c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1639c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1640c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1641c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1642c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1643c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1644c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1645c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1646c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1647c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1648898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 1649898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return getDependentSizedArrayType(NewEltTy, DSAT->getSizeExpr(), 1650898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1651898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier()); 1652898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1653c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1654c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1655c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1656c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1657c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1658c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1659d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorNestedNameSpecifier * 1660d57959af02b4af695276f4204443afe6e5d86bd8Douglas GregorASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 1661d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (!NNS) 1662d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 1663d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1664d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor switch (NNS->getKind()) { 1665d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Identifier: 1666d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Canonicalize the prefix but keep the identifier the same. 1667d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 1668d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor getCanonicalNestedNameSpecifier(NNS->getPrefix()), 1669d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getAsIdentifier()); 1670d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1671d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Namespace: 1672d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // A namespace is canonical; build a nested-name-specifier with 1673d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // this namespace and no prefix. 1674d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 1675d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1676d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpec: 1677d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: { 1678d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 1679d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NestedNameSpecifier *Prefix = 0; 1680d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1681d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: This isn't the right check! 1682d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (T->isDependentType()) 1683d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Prefix = getCanonicalNestedNameSpecifier(NNS->getPrefix()); 1684d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1685d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NestedNameSpecifier::Create(*this, Prefix, 1686d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 1687d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor T.getTypePtr()); 1688d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1689d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1690d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor case NestedNameSpecifier::Global: 1691d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // The global specifier is canonical and unique. 1692d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return NNS; 1693d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1694d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1695d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Required to silence a GCC warning 1696d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor return 0; 1697d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor} 1698d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1699c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1700c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1701c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1702c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1703c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1704c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1705c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1706c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1707c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1708c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1709c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1710c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1711f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Make sure to look through type qualifiers (like ExtQuals) for the negative 1712c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1713c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1714c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1715c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1716c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1717c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1718c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1719c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1720c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1721c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1722c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1723c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1724c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1725c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1726c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1727c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1728f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian // Rip through ExtQualType's and typedefs to get to a concrete type. 1729c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1730f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian if (const ExtQualType *EXTQT = dyn_cast<ExtQualType>(Ty)) { 1731f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian AddrSpace = EXTQT->getAddressSpace(); 1732f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Ty = EXTQT->getBaseType(); 1733c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1734c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1735c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1736c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1737c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1738c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1739c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1740c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1741c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1742c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1743c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1744c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1745c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1746c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1747c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1748c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1749c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1750c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1751c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1752c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1753f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian NewEltTy = getAddrSpaceQualType(NewEltTy, AddrSpace); 1754c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1755c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1756c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1757c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1758c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1759c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1760c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1761c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1762c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1763c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1764898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1765898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 1766898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 1767898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 1768898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 1769898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 1770898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1771898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier())); 1772c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1773c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1774c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1775c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1776c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 177777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 177877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 177977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1780e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1781e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1782e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1783e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1784e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1785e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1786e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1787c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1788c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1789c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1790c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1791c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1792c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1793e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1794c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1795e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1796e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1797c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1798e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1799e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1800d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel DunbarQualType ASTContext::getBaseElementType(const VariableArrayType *VAT) { 18016183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson QualType ElemTy = VAT->getElementType(); 18026183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 18036183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson if (const VariableArrayType *VAT = getAsVariableArrayType(ElemTy)) 18046183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return getBaseElementType(VAT); 18056183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 18066183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 18076183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 18086183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 18095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 18105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1811a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1812ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 18135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1814a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1815d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel Dunbar assert(T->getAsBuiltinType() && "getFloatingRank(): not a floating type"); 1816ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1817a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 18185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 18195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 18205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 18215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 18235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1824716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1825716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1826716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1827716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 18281361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 18291361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 18301361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 18311361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 18321361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1833716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1834f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1835f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1836f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1837f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1838f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 18391361b11066239ea15764a2a844405352d87296b3Chris Lattner 18401361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 18411361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 18421361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 18431361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 18441361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 18451361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 18465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 18485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 18507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 18517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 18527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1853a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1854a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1855a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1856a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1857a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1858fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1859a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1860fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1861fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 18625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 18635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1864f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1865f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1866f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1867f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedmanunsigned ASTContext::getIntegerRank(Type *T) { 1868f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1869f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (EnumType* ET = dyn_cast<EnumType>(T)) 1870f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman T = ET->getDecl()->getIntegerType().getTypePtr(); 1871f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 1872f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // There are two things which impact the integer rank: the width, and 1873f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the ordering of builtins. The builtin ordering is encoded in the 1874f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // bottom three bits; the width is encoded in the bits above that. 1875f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 1876f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth() << 3; 1877f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 1878f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman 1879f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 18807cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 18817cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 1882f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 1 + (getIntWidth(BoolTy) << 3); 18837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 18847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 18857cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 18867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 1887f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 2 + (getIntWidth(CharTy) << 3); 18887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 18897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 1890f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 3 + (getIntWidth(ShortTy) << 3); 18917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 18927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 1893f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 4 + (getIntWidth(IntTy) << 3); 18947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 18957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 1896f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 5 + (getIntWidth(LongTy) << 3); 18977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 18987cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 1899f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return 6 + (getIntWidth(LongLongTy) << 3); 1900f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1901f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1902f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 19037cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 19047cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 19057cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 19067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1907f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1908f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 19097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 19105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1911f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1912f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 19135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 19157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 19165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 19187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 19197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 19207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 19217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 19227cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 19237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 19247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 19257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 19267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 19277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 19287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 19297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 19307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 19317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 19327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 19337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 19347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 19357cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 19367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 19375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 19397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 19407cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 19417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 19425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 194371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 194471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 194571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 194671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 19476c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 194839ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1949df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 1950f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 195171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 195271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 195371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 1954f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 1955f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 195671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 1957f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 195871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 1959f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 196071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 196144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 196244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 196344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 196444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 196544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 19664afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 19676ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor CFConstantStringTypeDecl->addDecl(*this, Field); 196844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 196944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 197044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 197171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 197271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 197371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 19748467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 1975b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1976bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 1977bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 1978bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 197944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 198044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 198144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 198244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 1983bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 1984bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 1985bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 1986bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 1987bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 1988bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 1989bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 1990bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 199144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 199244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 199344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 199444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 199544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 19964afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 19976ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor ObjCFastEnumerationStateTypeDecl->addDecl(*this, Field); 199844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 1999bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 200044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2001bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 2002bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2003bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2004bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 2005bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 2006e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 2007e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 20082d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 2009e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 2010bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 2011bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 201285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 201385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 201485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 201585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2016a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 201733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 2018a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 201998be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 202033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 202133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 202233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 202398be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 202433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 202533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 202698be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 202798be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 202833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 202933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2030a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 203133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 2032c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 2033e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2034c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2035ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 2036a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 203733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 20380d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 203933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 204033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 204133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 204233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 204398be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 204433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 204533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 204633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 204789951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 204889951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 204989951a86b594513c2a013532ed45d197413b1087Chris Lattner QualType PType = (*PI)->getType(); 205089951a86b594513c2a013532ed45d197413b1087Chris Lattner int sz = getObjCEncodingTypeSize(PType); 2051a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 205233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 205333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 205433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 205533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 205633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 205733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 205833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 205933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 206089951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 206189951a86b594513c2a013532ed45d197413b1087Chris Lattner E = Decl->param_end(); PI != E; ++PI) { 206289951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *PVDecl = *PI; 20634306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian QualType PType = PVDecl->getOriginalType(); 20644306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 20654306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) 20664306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian // Use array's original type only if it has known number of 20674306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian // elements. 20684306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (!dyn_cast<ConstantArrayType>(AT)) 20694306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian PType = PVDecl->getType(); 2070ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 207133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 20724306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 20730d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 207433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 2075a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 207633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 207733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 207833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 2079c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 208083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 2081c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 2082c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 208383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// Property attributes are stored as a comma-delimited C string. The simple 208483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// attributes readonly and bycopy are encoded as single characters. The 208583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// parametrized attributes, getter=name, setter=name, and ivar=name, are 208683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// encoded as single characters, followed by an identifier. Property types 208783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// are also encoded as a parametrized attribute. The characters used to encode 208883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 208983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 209083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 209183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 209283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 209383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 209483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 209583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 209683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 209783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 209883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 209983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 210083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 210183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 210283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 210383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 2104c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 2105c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 2106e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 2107c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 2108c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 2109c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 2110c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2111c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 2112c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 2113c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 2114c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 2115c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 2116c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = CID->propimpl_begin(), e = CID->propimpl_end(); i != e; ++i) { 2117c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2118c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2119c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2120c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2121c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2122c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2123c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2124c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2125c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2126c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 212761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 2128c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 2129c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = OID->propimpl_begin(), e = OID->propimpl_end(); i != e; ++i) { 2130c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 2131c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 2132c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2133c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 2134c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2135c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 2136c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2137c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2138c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2139c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2140c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2141c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2142c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 2143c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 2144c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2145c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 2146090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 2147090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 2148090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(PD->getType(), S, true, true, NULL, 2149090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 2150090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 2151c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2152c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 2153c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 2154c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 2155c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 2156c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 2157c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 2158c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 2159c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2160c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2161c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2162c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 2163c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 2164c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 2165c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 2166c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2167090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 2168090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 2169090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian 2170c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 2171c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 2172077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 2173c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2174c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2175c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 2176c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 2177077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 2178c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2179c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2180c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 2181c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 2182c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 218339f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 2184c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 2185c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2186c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 2187c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 2188c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 2189a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 2190a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// Another legacy compatibility encoding: 32-bit longs are encoded as 2191c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian/// 'l' or 'L' , but not always. For typedefs, we need to use 2192a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 2193a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 2194a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 2195a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(PointeeTy.getTypePtr())) { 2196a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (const BuiltinType *BT = PointeeTy->getAsBuiltinType()) { 2197c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 2198c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2199a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 2200c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian else 2201c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 2202c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2203a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 2204a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2205a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2206a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 2207a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 22087d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 22096ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor FieldDecl *Field) { 221082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 221182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 221282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 221382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 22145b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian getObjCEncodingForTypeImpl(T, S, true, true, Field, 22155b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 221682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 221782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 22188b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanianstatic void EncodeBitField(const ASTContext *Context, std::string& S, 22198b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian FieldDecl *FD) { 22208b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 22218b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 22228b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 22238b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian unsigned N = E->getIntegerConstantExprValue(*Ctx).getZExtValue(); 22248b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 22258b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 22268b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 22278b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 222882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 222982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 223082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 22315b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian FieldDecl *FD, 2232090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 22336ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor bool EncodingProperty) { 2234e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 223543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD && FD->isBitField()) { 22368b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 223785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 223843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else { 223943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian char encoding; 224043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian switch (BT->getKind()) { 224143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian default: assert(0 && "Unhandled builtin type kind"); 224243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Void: encoding = 'v'; break; 224343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Bool: encoding = 'B'; break; 224443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_U: 224543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UChar: encoding = 'C'; break; 224643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UShort: encoding = 'S'; break; 224743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UInt: encoding = 'I'; break; 224872696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::ULong: 224972696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 225072696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 225172696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 225243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::ULongLong: encoding = 'Q'; break; 225343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_S: 225443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::SChar: encoding = 'c'; break; 225543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Short: encoding = 's'; break; 225643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Int: encoding = 'i'; break; 225772696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::Long: 225872696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 225972696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 226072696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 226143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongLong: encoding = 'q'; break; 226243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Float: encoding = 'f'; break; 226343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Double: encoding = 'd'; break; 226443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongDouble: encoding = 'd'; break; 226543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 226685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 226743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += encoding; 226843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 2269c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 2270a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (T->isObjCQualifiedIdType()) { 2271090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(getObjCIdType(), S, 2272090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandPointedToStructures, 2273090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandStructures, FD); 2274090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 2275090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Note that we do extended encoding of protocol qualifer list 2276090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Only when doing ivar or property encoding. 2277090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian const ObjCQualifiedIdType *QIDT = T->getAsObjCQualifiedIdType(); 2278090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2279090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian for (unsigned i =0; i < QIDT->getNumProtocols(); i++) { 2280090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCProtocolDecl *Proto = QIDT->getProtocols(i); 2281090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2282090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += Proto->getNameAsString(); 2283090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2284090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2285090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2286090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2287090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian return; 2288c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 2289c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 229085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 2291a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 2292a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 2293a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 2294a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 2295a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Also, do not emit the 'r' for anything but the outermost type! 2296a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(T.getTypePtr())) { 2297a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 2298a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2299a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2300a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2301a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2302a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian else if (OutermostType) { 2303a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 2304a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian while (P->getAsPointerType()) 2305a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian P = P->getAsPointerType()->getPointeeType(); 2306a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 2307a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2308a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2309a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2310a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2311a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 2312a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 2313a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 2314a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 2315a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 2316a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 2317a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 2318a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 2319a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 2320a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2321a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2322389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(PointeeTy)) { 2323c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 2324c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 2325c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian } 2326c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian else if (PointeeTy->isObjCInterfaceType()) { 2327bb99bdec7d3e704485baffae85938d24d35f0e0fFariborz Jahanian if (!EncodingProperty && 2328225dfd7d6b0ed14e6b7ad8dc121161b9f34ecfceFariborz Jahanian isa<TypedefType>(PointeeTy.getTypePtr())) { 23293e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // Another historical/compatibility reason. 23303e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // We encode the underlying type which comes out as 23313e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // {...}; 23323e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian S += '^'; 23333e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 23343e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian false, ExpandPointedToStructures, 23353e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian NULL); 23363e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian return; 23373e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian } 2338c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian S += '@'; 2339090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 234086f938b3d4a79fb9c337d351c8f3e5f1ff18f1b6Fariborz Jahanian const ObjCInterfaceType *OIT = 234186f938b3d4a79fb9c337d351c8f3e5f1ff18f1b6Fariborz Jahanian PointeeTy.getUnqualifiedType()->getAsObjCInterfaceType(); 2342090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCInterfaceDecl *OI = OIT->getDecl(); 2343adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2344adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += OI->getNameAsCString(); 2345090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian for (unsigned i =0; i < OIT->getNumProtocols(); i++) { 2346090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCProtocolDecl *Proto = OIT->getProtocol(i); 2347090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2348090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += Proto->getNameAsString(); 2349090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2350090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2351adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2352adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian } 2353c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian return; 2354389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff } else if (isObjCClassStructType(PointeeTy)) { 23558baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 23568baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2357a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 23588baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 23598baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2360c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 236185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 236285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 236385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 236485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 2365e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 236685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 236785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 236885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 236985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 237085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 237185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 2372a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 2373a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 2374a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 2375d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar false, ExpandPointedToStructures, 237643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 2377c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 2378c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 2379c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 2380559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (isa<IncompleteArrayType>(AT)) { 2381559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson // Incomplete arrays are encoded as a pointer to the array element. 2382559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '^'; 2383559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson 2384559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2385559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2386559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } else { 2387559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '['; 238885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2389559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 2390559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 2391559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson else { 2392559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson //Variable length arrays are encoded as a regular array with 0 elements. 2393559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 2394559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += '0'; 2395559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 239685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2397559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson getObjCEncodingForTypeImpl(AT->getElementType(), S, 2398559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson false, ExpandStructures, FD); 2399559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson S += ']'; 2400559a83330416affb0e341a2c53800cbf924a5178Anders Carlsson } 2401c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 2402c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 24036de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 240482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 2405d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 2406502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 2407502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 2408502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 2409502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 2410502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 2411502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 24120d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 24137d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 24146ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor for (RecordDecl::field_iterator Field = RDecl->field_begin(*this), 24156ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor FieldEnd = RDecl->field_end(*this); 241644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 241743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 2418d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 241944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 2420d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 2421d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 2422d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 2423d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 242443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 242543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 242643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 2427d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 2428a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 2429a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 2430a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(qt, S, false, true, 243143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 2432d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 24337d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 24346de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 2435d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 24365e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 24378b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 24388b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 24398b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 24408b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 2441485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 244221a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 244343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } else if (T->isObjCInterfaceType()) { 244443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 244543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 244643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 244743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 244843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 244943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 2450f1690858344968358131f8d5690d9ee458883000Chris Lattner llvm::SmallVector<FieldDecl*, 32> RecFields; 245143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 2452f1690858344968358131f8d5690d9ee458883000Chris Lattner for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 245343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 245443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 245543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 245643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 245743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 245843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 245943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 246043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 246143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 246243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 2463f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 246485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 246585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2466a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 2467ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 2468ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 2469ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 2470ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 2471ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 2472ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 2473ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 2474ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 2475ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 2476ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 2477ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 2478ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 2479ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 2480ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 2481ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 2482b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 2483b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 2484b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 2485b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2486b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 2487b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 2488b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2489a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCIdType(TypedefDecl *TD) 24907e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 2491a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = getTypedefType(TD); 24927e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 24937e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 24947e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2495c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2496c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2497c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 24987e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2499c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2500c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2501c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 25027e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 25037e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 25047e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 2505a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCSelType(TypedefDecl *TD) 2506b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 2507a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCSelType = getTypedefType(TD); 2508b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2509b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 2510b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2511c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2512c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2513b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2514c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2515c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2516b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 2517b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 2518b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2519a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 2520390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 2521a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 2522390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 2523390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 2524a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCClassType(TypedefDecl *TD) 25258baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 2526a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = getTypedefType(TD); 25278baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 25288baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 25298baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 25308baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 25318baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 25328baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 25338baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 25348baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 25358baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 2536a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 2537a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 25382198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 25392198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 2540a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 25412198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 25422198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 25437532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a qualified 25447532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c std::vector. 25457532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 25467532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool TemplateKeyword, 25477532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateDecl *Template) { 25487532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 25497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 25507532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 25517532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 25527532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateName *QTN = 25537532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 25547532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (!QTN) { 25557532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 25567532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QualifiedTemplateNames.InsertNode(QTN, InsertPos); 25577532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 25587532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 25597532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 25607532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 25617532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 25627532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// \brief Retrieve the template name that represents a dependent 25637532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor/// template name such as \c MetaFun::template apply. 25647532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas GregorTemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 25657532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor const IdentifierInfo *Name) { 25667532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(NNS->isDependent() && "Nested name specifier must be dependent"); 25677532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 25687532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor llvm::FoldingSetNodeID ID; 25697532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName::Profile(ID, NNS, Name); 25707532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 25717532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void *InsertPos = 0; 25727532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateName *QTN = 25737532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 25747532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 25757532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (QTN) 25767532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 25777532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 25787532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 25797532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor if (CanonNNS == NNS) { 25807532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name); 25817532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } else { 25827532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 25837532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 25847532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor } 25857532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 25867532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor DependentTemplateNames.InsertNode(QTN, InsertPos); 25877532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor return TemplateName(QTN); 25887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor} 25897532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 2590b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 2591d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 2592d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 2593d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 2594b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 2595b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 2596b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 2597b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 2598b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 2599b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 2600b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 2601b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 2602b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 2603b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 2604b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 2605b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 2606b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 2607b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 2608b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 2609b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2610b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2611b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 2612b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2613b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2614fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 2615fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 2616fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 2617fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 2618fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 2619fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 2620fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 2621fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TD->getAttr<ObjCNSObjectAttr>()) 2622fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2623fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 2624fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return false; 2625fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 2626fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2627b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 2628b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 2629b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 2630b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 2631b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 2632d461777e23204fe8c480302d8ff76f5847605da6Steve Naroff if (Ty->isObjCQualifiedIdType()) 2633b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2634b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 26356ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // Blocks are objects. 26366ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff if (Ty->isBlockPointerType()) 26376ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff return true; 26386ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff 26396ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // All other object types are pointers. 2640b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (!Ty->isPointerType()) 2641b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 2642b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2643b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // Check to see if this is 'id' or 'Class', both of which are typedefs for 2644b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // pointer types. This looks for the typedef specifically, not for the 2645b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // underlying type. 26465fdeae17da443c50c62f602733d06193a71b170fEli Friedman if (Ty.getUnqualifiedType() == getObjCIdType() || 26475fdeae17da443c50c62f602733d06193a71b170fEli Friedman Ty.getUnqualifiedType() == getObjCClassType()) 2648b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2649b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2650b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 2651fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Ty->getAsPointerType()->getPointeeType()->isObjCInterfaceType()) 2652fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2653fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2654fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian // If is has NSObject attribute, OK as well. 2655fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return isObjCNSObjectType(Ty); 2656b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 2657b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 26584fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 26594fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// garbage collection attribute. 26604fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian/// 26614fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz JahanianQualType::GCAttrTypes ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 2662b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner QualType::GCAttrTypes GCAttrs = QualType::GCNone; 26634fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian if (getLangOptions().ObjC1 && 26644fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian getLangOptions().getGCMode() != LangOptions::NonGC) { 2665b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner GCAttrs = Ty.getObjCGCAttr(); 26664fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian // Default behavious under objective-c's gc is for objective-c pointers 2667a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // (or pointers to them) be treated as though they were declared 2668a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian // as __strong. 2669a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (GCAttrs == QualType::GCNone) { 2670a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian if (isObjCObjectPointerType(Ty)) 2671a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian GCAttrs = QualType::Strong; 2672a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian else if (Ty->isPointerType()) 2673a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian return getObjCGCAttrKind(Ty->getAsPointerType()->getPointeeType()); 2674a223cca7751637f8ec1a860010c4148757fb4752Fariborz Jahanian } 26754fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian } 2676b7d2553edd2532d29b98b9e76bcf6a62bc48b417Chris Lattner return GCAttrs; 26774fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian} 26784fd83ea566f4a0c083001c84b75da6cc8c99c1d6Fariborz Jahanian 26796ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 26806ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 26816ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 2682770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 26831c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff/// typesAreBlockCompatible - This routine is called when comparing two 2684dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// block types. Types must be strictly compatible here. For example, 2685dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// C unfortunately doesn't produce an error for the following: 2686dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2687dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*emptyArgFunc)(); 2688dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*intArgList)(int) = emptyArgFunc; 2689dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2690dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// For blocks, we will produce an error for the following (similar to C++): 2691dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2692dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^emptyArgBlock)(); 2693dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^intArgBlock)(int) = emptyArgBlock; 2694dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2695dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// FIXME: When the dust settles on this integration, fold this into mergeTypes. 2696dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 26971c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroffbool ASTContext::typesAreBlockCompatible(QualType lhs, QualType rhs) { 2698c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *lbase = lhs->getAsFunctionType(); 2699c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *rbase = rhs->getAsFunctionType(); 270072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 270172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 2702aab0f7a749e939d1d485a436f57ae56d14ba3016Mike Stump if (lproto && rproto == 0) 2703aab0f7a749e939d1d485a436f57ae56d14ba3016Mike Stump return false; 2704aab0f7a749e939d1d485a436f57ae56d14ba3016Mike Stump return !mergeTypes(lhs, rhs).isNull(); 27051c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff} 27061c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff 27076ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 27086ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 27096ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 27106ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 27116ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 27126ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 271361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 27146ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 27156ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 27163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 27176ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 27186ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 27196ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 27203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 27213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 27226ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 27236ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 27246ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 27256ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 27266ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 27276ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 27286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 27296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 27306ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 27316ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 27326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 27336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 27346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 27356ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 27366ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 27376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 27386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 27396ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 27406ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 274191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // All LHS protocols must have a presence on the RHS. 274291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff assert(LHSP->qual_begin() != LHSP->qual_end() && "Empty LHS protocol list?"); 274391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 274491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(), 274591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPE = LHSP->qual_end(); 274691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff LHSPI != LHSPE; LHSPI++) { 274791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff bool RHSImplementsProtocol = false; 274891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff 274991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // If the RHS doesn't implement the protocol on the left, the types 275091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // are incompatible. 275191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff for (ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(), 275291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSPE = RHSP->qual_end(); 275391b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff !RHSImplementsProtocol && (RHSPI != RHSPE); RHSPI++) { 275491b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) 275591b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff RHSImplementsProtocol = true; 275691b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 275791b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // FIXME: For better diagnostics, consider passing back the protocol name. 275891b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff if (!RHSImplementsProtocol) 275991b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return false; 276091b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff } 276191b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff // The RHS implements all protocols listed on the LHS. 276291b0b0cf6b537cbcbca0038c7032f87161a41d31Steve Naroff return true; 27636ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 27646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 2765389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroffbool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 2766389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // get the "pointed to" types 2767389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const PointerType *LHSPT = LHS->getAsPointerType(); 2768389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const PointerType *RHSPT = RHS->getAsPointerType(); 2769389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2770389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (!LHSPT || !RHSPT) 2771389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 2772389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2773389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff QualType lhptee = LHSPT->getPointeeType(); 2774389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff QualType rhptee = RHSPT->getPointeeType(); 2775389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const ObjCInterfaceType* LHSIface = lhptee->getAsObjCInterfaceType(); 2776389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff const ObjCInterfaceType* RHSIface = rhptee->getAsObjCInterfaceType(); 2777389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff // ID acts sort of like void* for ObjC interfaces 2778389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (LHSIface && isObjCIdStructType(rhptee)) 2779389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return true; 2780389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (RHSIface && isObjCIdStructType(lhptee)) 2781389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return true; 2782389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (!LHSIface || !RHSIface) 2783389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return false; 2784389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff return canAssignObjCInterfaces(LHSIface, RHSIface) || 2785389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff canAssignObjCInterfaces(RHSIface, LHSIface); 2786389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff} 2787389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff 2788ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 2789ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 2790ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 2791ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 27923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 27933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 27943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 27953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 27963d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 27973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 27983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 279972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 280072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 28013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 28023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 28033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 28043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 28053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 28063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 280761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 280861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 280961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 281061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 28113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 28123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 28133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 28143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 28153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 28163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 28173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 28183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 28193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 28203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 28213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 28223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 28233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 28247fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 28257fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 28267fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 28273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 28283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 28293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 28303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 28313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 28323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 28333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 28343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 283561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 283661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 283761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 283861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 28393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 28403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 28413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 28423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 28437fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 28443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 28453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 28463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 28473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 28483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 284972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = lproto ? lproto : rproto; 28503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 28513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 28523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 28533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 28543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 28553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 28563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 28573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 28583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 28593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 28603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 28613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 28623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 28633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 28643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 28653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 28663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 28673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 28687fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 28697fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 28703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 28713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 28723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 28733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 287472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return getFunctionNoProtoType(retType); 28753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 28763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 28773d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 287843d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 287943d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 288043d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 28817c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // expression is an lvalue unless the reference is an rvalue reference and 28827c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // the expression is a function call (possibly inside parentheses). 28833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 28843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 28857c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 28867c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl // shouldn't be going through here! 28873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 2888c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 28893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 2890c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 28913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 28923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 28933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 28943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 2895f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 28963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 28973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 28983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 28993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 29005a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Note that we handle extended qualifiers later, in the 29015a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // case for ExtQualType. 29025a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers()) 29033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 29043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 29063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 2907f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 29081adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 29091adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 29101adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 29111adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 29124c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 29134c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 2914a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 2915a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 2916a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 2917a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 2918a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 2919213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 2920213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 2921213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 2922ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 2923b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 2924b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 2925b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 29263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29274e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 29284e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 29295fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 29305fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 29315fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 29325fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // ID acts sort of like void* for ObjC interfaces 29335fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && isObjCIdStructType(RHS)) 29345fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 29355fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (RHSIface && isObjCIdStructType(LHS)) 29365fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return RHS; 29375fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 2938bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // ID is compatible with all qualified id types. 2939bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (LHS->isObjCQualifiedIdType()) { 2940bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) { 2941bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2942389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(pType)) 2943bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2944bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2945bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2946bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2947bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2948bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2949bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2950bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2951bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2952bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (RHS->isObjCQualifiedIdType()) { 2953bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) { 2954bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2955389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(pType)) 2956bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2957bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2958bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2959bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2960bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2961bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2962bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2963bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2964bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 29651adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 29661adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 29673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 29683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 29693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 2970bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 29713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 29723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 29733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 2974bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 29751adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 29763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2977ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 29783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 29794a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 29801adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 298172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define TYPE(Class, Base) 298272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define ABSTRACT_TYPE(Class, Base) 298372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 298472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#define DEPENDENT_TYPE(Class, Base) case Type::Class: 298572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor#include "clang/AST/TypeNodes.def" 298672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Non-canonical and dependent types shouldn't get here"); 298772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 298872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 29897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::LValueReference: 29907c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl case Type::RValueReference: 299172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::MemberPointer: 299272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "C++ should never be in mergeTypes"); 299372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 299472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 299572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::IncompleteArray: 299672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::VariableArray: 299772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::FunctionProto: 299872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ExtVector: 299972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::ObjCQualifiedInterface: 300072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor assert(false && "Types are eliminated above"); 300172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 300272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 30031adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 30043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 30053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 30063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 30073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 30083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 30093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 301061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 301161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 301261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 301361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 30143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 30153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 3016c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 3017c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 3018c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 3019c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 3020c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 3021c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 3022c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 3023c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 3024c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 3025c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 3026c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 3027c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 3028c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 30291adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 30303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 30313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 30323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 30333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 30343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 30353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 30363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 30373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 30383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 30393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 304061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 304161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 304261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 304361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 30443bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 30453bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 30463bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 30473bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 30483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 30493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 305061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 305161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 305261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 305361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 30543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 30553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 30563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 30573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 30583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 30593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 30603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 30613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 30623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 30633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 30643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 30653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 30663bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 30673bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 306861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(),0); 30693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 30701adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 30713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 307272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Record: 307372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor case Type::Enum: 30743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 3075389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCIdStructType(LHS) && isObjCClassStructType(RHS)) return LHS; 3076389bf46ae41241a656ed71b00ac2177d7f385651Steve Naroff if (isObjCClassStructType(LHS) && isObjCIdStructType(RHS)) return LHS; 30773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 30781adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 30793cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 30803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 308164cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 308264cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 308364cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 30843cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 30855a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: The merged type should be an ExtVector! 30863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 30873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 308861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 308961490e9a965cfee8a78c12c6802138844f04250dCedric Venet case Type::ObjCInterface: { 30905fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff // Check if the interfaces are assignment compatible. 30915a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: This should be type compatibility, e.g. whether 30925a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // "LHS x; RHS x;" at global scope is legal. 30935fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* LHSIface = LHS->getAsObjCInterfaceType(); 30945fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff const ObjCInterfaceType* RHSIface = RHS->getAsObjCInterfaceType(); 30955fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff if (LHSIface && RHSIface && 30965fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff canAssignObjCInterfaces(LHSIface, RHSIface)) 30975fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff return LHS; 30985fd659db11922fc12a58e478f7b745f9656b15a7Steve Naroff 30993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 310061490e9a965cfee8a78c12c6802138844f04250dCedric Venet } 3101bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff case Type::ObjCQualifiedId: 3102bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Distinct qualified id's are not compatible. 3103bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 31045a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::FixedWidthInt: 31055a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct fixed-width integers are not compatible. 31065a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 31075a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::ObjCQualifiedClass: 31085a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // Distinct qualified classes are not compatible. 31095a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 31105a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman case Type::ExtQual: 31115a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // FIXME: ExtQual types can be compatible even if they're not 31125a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // identical! 31135a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 31145a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // First attempt at an implementation, but I'm not really sure it's 31155a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman // right... 31165a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#if 0 31175a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* LQual = cast<ExtQualType>(LHSCan); 31185a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ExtQualType* RQual = cast<ExtQualType>(RHSCan); 31195a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LQual->getAddressSpace() != RQual->getAddressSpace() || 31205a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LQual->getObjCGCAttr() != RQual->getObjCGCAttr()) 31215a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return QualType(); 31225a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman QualType LHSBase, RHSBase, ResultType, ResCanUnqual; 31235a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman LHSBase = QualType(LQual->getBaseType(), 0); 31245a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman RHSBase = QualType(RQual->getBaseType(), 0); 31255a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = mergeTypes(LHSBase, RHSBase); 31265a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (ResultType.isNull()) return QualType(); 31275a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResCanUnqual = getCanonicalType(ResultType).getUnqualifiedType(); 31285a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (LHSCan.getUnqualifiedType() == ResCanUnqual) 31295a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return LHS; 31305a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman if (RHSCan.getUnqualifiedType() == ResCanUnqual) 31315a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return RHS; 31325a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getAddrSpaceQualType(ResultType, LQual->getAddressSpace()); 31335a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType = getObjCGCQualType(ResultType, LQual->getObjCGCAttr()); 31345a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman ResultType.setCVRQualifiers(LHSCan.getCVRQualifiers()); 31355a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman return ResultType; 31365a61f0e5c5aaecd5713c3fa4b78be7167a7eeff2Eli Friedman#endif 31377532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor 31387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor case Type::TemplateSpecialization: 31397532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor assert(false && "Dependent types have no size"); 31407532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor break; 3141ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 314272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor 314372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return QualType(); 3144ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 31457192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 31465426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 3147ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 3148ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 314988054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 3150ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 3151ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 3152ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 3153f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) { 3154f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return FWIT->getWidth(); 3155f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 3156f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // For builtin types, just use the standard type sizing method 3157ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 3158ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3159ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 3160ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 3161ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 3162ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 3163ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 3164ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 3165ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 3166ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 3167ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 3168ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 3169ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 3170ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 3171ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 3172ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 3173ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 3174ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 3175ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 3176ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 3177ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 3178ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 3179ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 3180ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 3181ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 3182ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 3183ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 3184ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 3185ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 31865426bf6456a5aeac416a9150de157904d101c819Chris Lattner// Serialization Support 31875426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 31885426bf6456a5aeac416a9150de157904d101c819Chris Lattner 3189a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattnerenum { 3190a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner BasicMetadataBlock = 1, 3191a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner ASTContextBlock = 2, 3192a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner DeclsBlock = 3 3193a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner}; 3194a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3195557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattnervoid ASTContext::EmitASTBitcodeBuffer(std::vector<unsigned char> &Buffer) const{ 3196557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner // Create bitstream. 3197557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner llvm::BitstreamWriter Stream(Buffer); 3198557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner 3199557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner // Emit the preamble. 3200557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner Stream.Emit((unsigned)'B', 8); 3201557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner Stream.Emit((unsigned)'C', 8); 3202557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner Stream.Emit(0xC, 4); 3203557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner Stream.Emit(0xF, 4); 3204557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner Stream.Emit(0xE, 4); 3205557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner Stream.Emit(0x0, 4); 3206557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner 3207557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner // Create serializer. 3208557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner llvm::Serializer S(Stream); 3209557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner 3210a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // ===---------------------------------------------------===/ 3211a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Serialize the "Translation Unit" metadata. 3212a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // ===---------------------------------------------------===/ 3213a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3214a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Emit ASTContext. 3215a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.EnterBlock(ASTContextBlock); 3216a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.EmitOwnedPtr(this); 3217a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.ExitBlock(); // exit "ASTContextBlock" 3218a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3219a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.EnterBlock(BasicMetadataBlock); 3220a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3221a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Block for SourceManager and Target. Allows easy skipping 3222a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // around to the block for the Selectors during deserialization. 3223a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.EnterBlock(); 3224a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3225a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Emit the SourceManager. 3226a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.Emit(getSourceManager()); 3227a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3228a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Emit the Target. 3229a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.EmitPtr(&Target); 3230a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.EmitCStr(Target.getTargetTriple()); 3231a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3232a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.ExitBlock(); // exit "SourceManager and Target Block" 3233a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3234a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Emit the Selectors. 3235a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.Emit(Selectors); 3236a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3237a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Emit the Identifier Table. 3238a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.Emit(Idents); 3239a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3240a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner S.ExitBlock(); // exit "BasicMetadataBlock" 3241a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner} 3242a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3243a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 32447192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek/// Emit - Serialize an ASTContext object to Bitcode. 32457192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenekvoid ASTContext::Emit(llvm::Serializer& S) const { 3246e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek S.Emit(LangOpts); 32475451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(SourceMgr); 32485451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Target); 32495451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Idents); 32505451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Selectors); 32517192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 3252fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // Emit the size of the type vector so that we can reserve that size 3253fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // when we reconstitute the ASTContext object. 3254a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek S.EmitInt(Types.size()); 3255a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 325603ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (std::vector<Type*>::const_iterator I=Types.begin(), E=Types.end(); 325703ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek I!=E;++I) 325803ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek (*I)->Emit(S); 3259a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 3260ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis S.EmitOwnedPtr(TUDecl); 3261ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 3262a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl); 32637192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek} 32647192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 3265557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner 3266557c5b1717bc8919b1b40cf2064b51491ec53a44Chris LattnerASTContext *ASTContext::ReadASTBitcodeBuffer(llvm::MemoryBuffer &Buffer, 3267557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner FileManager &FMgr) { 3268557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner // Check if the file is of the proper length. 3269557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner if (Buffer.getBufferSize() & 0x3) { 3270557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner // FIXME: Provide diagnostic: "Length should be a multiple of 4 bytes." 3271557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner return 0; 3272557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner } 3273557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner 3274557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner // Create the bitstream reader. 3275557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner unsigned char *BufPtr = (unsigned char *)Buffer.getBufferStart(); 3276557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner llvm::BitstreamReader Stream(BufPtr, BufPtr+Buffer.getBufferSize()); 3277557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner 3278557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner if (Stream.Read(8) != 'B' || 3279557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner Stream.Read(8) != 'C' || 3280557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner Stream.Read(4) != 0xC || 3281557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner Stream.Read(4) != 0xF || 3282557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner Stream.Read(4) != 0xE || 3283557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner Stream.Read(4) != 0x0) { 3284557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner // FIXME: Provide diagnostic. 3285557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner return NULL; 3286557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner } 3287557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner 3288557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner // Create the deserializer. 3289557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner llvm::Deserializer Dezr(Stream); 3290557c5b1717bc8919b1b40cf2064b51491ec53a44Chris Lattner 3291a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // ===---------------------------------------------------===/ 3292a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Deserialize the "Translation Unit" metadata. 3293a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // ===---------------------------------------------------===/ 3294a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3295a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Skip to the BasicMetaDataBlock. First jump to ASTContextBlock 3296a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // (which will appear earlier) and record its location. 3297a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3298a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner bool FoundBlock = Dezr.SkipToBlock(ASTContextBlock); 3299a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner assert (FoundBlock); 3300a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3301a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner llvm::Deserializer::Location ASTContextBlockLoc = 3302a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner Dezr.getCurrentBlockLocation(); 3303a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3304a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner FoundBlock = Dezr.SkipToBlock(BasicMetadataBlock); 3305a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner assert (FoundBlock); 3306a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3307a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Read the SourceManager. 3308a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner SourceManager::CreateAndRegister(Dezr, FMgr); 3309a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3310a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner { // Read the TargetInfo. 3311a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner llvm::SerializedPtrID PtrID = Dezr.ReadPtrID(); 3312a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner char* triple = Dezr.ReadCStr(NULL,0,true); 3313a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner Dezr.RegisterPtr(PtrID, TargetInfo::CreateTargetInfo(std::string(triple))); 3314a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner delete [] triple; 3315a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner } 3316a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3317a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // For Selectors, we must read the identifier table first because the 3318a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // SelectorTable depends on the identifiers being already deserialized. 3319a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner llvm::Deserializer::Location SelectorBlkLoc = Dezr.getCurrentBlockLocation(); 3320a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner Dezr.SkipBlock(); 3321a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3322a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Read the identifier table. 3323a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner IdentifierTable::CreateAndRegister(Dezr); 3324a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3325a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Now jump back and read the selectors. 3326a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner Dezr.JumpTo(SelectorBlkLoc); 3327a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner SelectorTable::CreateAndRegister(Dezr); 3328a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 3329a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner // Now jump back to ASTContextBlock and read the ASTContext. 3330a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner Dezr.JumpTo(ASTContextBlockLoc); 3331a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner return Dezr.ReadOwnedPtr<ASTContext>(); 3332a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner} 3333a9376d470ccb0eac74fe09a6b2a18a890f1d17c4Chris Lattner 33340f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted KremenekASTContext* ASTContext::Create(llvm::Deserializer& D) { 3335e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 3336e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek // Read the language options. 3337e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LangOptions LOpts; 3338e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LOpts.Read(D); 3339e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 3340fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SourceManager &SM = D.ReadRef<SourceManager>(); 3341fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek TargetInfo &t = D.ReadRef<TargetInfo>(); 3342fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek IdentifierTable &idents = D.ReadRef<IdentifierTable>(); 3343fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels = D.ReadRef<SelectorTable>(); 33440ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 3345fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek unsigned size_reserve = D.ReadInt(); 3346fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 33472e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor ASTContext* A = new ASTContext(LOpts, SM, t, idents, sels, 33482e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor size_reserve); 3349fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 335003ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (unsigned i = 0; i < size_reserve; ++i) 335103ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek Type::Create(*A,i,D); 33520ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 3353ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis A->TUDecl = cast<TranslationUnitDecl>(D.ReadOwnedPtr<Decl>(*A)); 3354ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 3355a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: A->CFConstantStringTypeDecl = D.ReadOwnedPtr<RecordDecl>(); 3356fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 3357fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek return A; 3358fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek} 3359