ASTContext.cpp revision adcaf544a9d863a4afb29cc5420095320fccafd8
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" 17e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 18e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/RecordLayout.h" 195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 2085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 217192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Serialize.h" 227192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Deserialize.h" 2385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3061710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 3161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner TargetInfo &t, 32e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 33e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar unsigned size_reserve) : 34bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson CFConstantStringTypeDecl(0), ObjCFastEnumerationStateTypeDecl(0), 35bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson SourceMgr(SM), LangOpts(LOpts), Target(t), 362e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor Idents(idents), Selectors(sels) 37e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar{ 38e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 39e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar InitBuiltinTypes(); 40e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar BuiltinInfo.InitializeBuiltins(idents, Target); 41e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 42e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 43e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 474b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 50b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 51b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 52b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 53b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 54b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 55b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 56b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 57b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 58b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 59b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 60b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 61b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const ObjCInterfaceDecl*, const ASTRecordLayout*>::iterator 62b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTObjCInterfaces.begin(), E = ASTObjCInterfaces.end(); 63b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 64b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 65b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 66b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 67b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 68b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 69b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const ObjCInterfaceDecl*, const RecordDecl*>::iterator 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordForInterface.begin(), E = ASTRecordForInterface.end(); 72b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 73b74668edbc119880eb0a7e563432314432cb775dNuno Lopes RecordDecl *R = const_cast<RecordDecl*>((I++)->second); 74b74668edbc119880eb0a7e563432314432cb775dNuno Lopes R->Destroy(*this); 75b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 76b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 77b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 78b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumBuiltin = 0, NumPointer = 0, NumArray = 0, NumFunctionP = 0; 85248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar unsigned NumVector = 0, NumComplex = 0, NumBlockPointer = 0; 865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumFunctionNP = 0, NumTypeName = 0, NumTagged = 0, NumReference = 0; 875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumTagStruct = 0, NumTagUnion = 0, NumTagEnum = 0, NumTagClass = 0; 89a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCInterfaces = 0, NumObjCQualifiedInterfaces = 0; 90a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCQualifiedIds = 0; 916cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff unsigned NumTypeOfTypes = 0, NumTypeOfExprs = 0; 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isa<BuiltinType>(T)) 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumBuiltin; 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<PointerType>(T)) 985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumPointer; 99248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar else if (isa<BlockPointerType>(T)) 100248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar ++NumBlockPointer; 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ReferenceType>(T)) 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumReference; 1036d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<ComplexType>(T)) 1046d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumComplex; 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ArrayType>(T)) 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumArray; 1076d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<VectorType>(T)) 1086d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumVector; 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeNoProto>(T)) 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionNP; 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeProto>(T)) 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionP; 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<TypedefType>(T)) 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTypeName; 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (TagType *TT = dyn_cast<TagType>(T)) { 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTagged; 11739ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis switch (TT->getDecl()->getTagKind()) { 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown tagged type!"); 11939ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_struct: ++NumTagStruct; break; 12039ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_union: ++NumTagUnion; break; 12139ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_class: ++NumTagClass; break; 12239ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_enum: ++NumTagEnum; break; 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 124a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isa<ObjCInterfaceType>(T)) 125a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCInterfaces; 126a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedInterfaceType>(T)) 127a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedInterfaces; 128a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedIdType>(T)) 129a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedIds; 1306cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfType>(T)) 1316cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfTypes; 1326cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfExpr>(T)) 1336cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfExprs; 1343f128ad2691d299b96663da85a9e069c4081ea7cSteve Naroff else { 135beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner QualType(T, 0).dump(); 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(0 && "Unknown type!"); 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d builtin types\n", NumBuiltin); 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d pointer types\n", NumPointer); 142248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar fprintf(stderr, " %d block pointer types\n", NumBlockPointer); 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d reference types\n", NumReference); 1446d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d complex types\n", NumComplex); 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d array types\n", NumArray); 1466d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d vector types\n", NumVector); 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with proto\n", NumFunctionP); 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with no proto\n", NumFunctionNP); 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d typename (typedef) types\n", NumTypeName); 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d tagged types\n", NumTagged); 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d struct types\n", NumTagStruct); 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d union types\n", NumTagUnion); 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d class types\n", NumTagClass); 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d enum types\n", NumTagEnum); 155a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek fprintf(stderr, " %d interface types\n", NumObjCInterfaces); 156beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner fprintf(stderr, " %d protocol qualified interface types\n", 157a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedInterfaces); 158c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian fprintf(stderr, " %d protocol qualified id types\n", 159a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedIds); 1606cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof types\n", NumTypeOfTypes); 1616cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof exprs\n", NumTypeOfExprs); 1626cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "Total bytes = %d\n", int(NumBuiltin*sizeof(BuiltinType)+ 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumPointer*sizeof(PointerType)+NumArray*sizeof(ArrayType)+ 1656d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner NumComplex*sizeof(ComplexType)+NumVector*sizeof(VectorType)+ 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionP*sizeof(FunctionTypeProto)+ 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionNP*sizeof(FunctionTypeNoProto)+ 1686cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeName*sizeof(TypedefType)+NumTagged*sizeof(TagType)+ 1696cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeOfTypes*sizeof(TypeOfType)+NumTypeOfExprs*sizeof(TypeOfExpr))); 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back((R = QualType(new BuiltinType(K),0)).getTypePtr()); 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 18698be4943e8dc4f3905629a7102668960873cf863Chris Lattner if (Target.isCharSigned()) 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 20864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 20964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // C++ 3.9.1p5 21064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis InitBuiltinType(WCharTy, BuiltinType::WChar); 21164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 2128e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 213898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 214898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 215898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 216898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 217898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 218898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 219898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 220898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 2218e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2268e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2277e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 228a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = QualType(); 2297e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = 0; 230a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = QualType(); 2318baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = 0; 2328baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 233a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 23433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 23533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 23633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 239464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 240464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 241464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 242a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 243b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 244b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 245b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 246b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 247b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 248b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 249b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 250b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 251b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 252b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 253b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 254b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 255b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 256b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 257a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 258a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 259d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 2601d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 261f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner T = getCanonicalType(T); 2629e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner uint64_t Width; 263d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner unsigned Align; 264a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 265030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::TypeName: assert(0 && "Not a canonical type!"); 2665d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 2675d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 268692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: 269b1c2df99ba67ec6c29ac7dceaa4eb2c8cda4a017Chris Lattner assert(0 && "Incomplete types have no size!"); 270fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 271fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff assert(0 && "VLAs not implemented yet!"); 272898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor case Type::DependentSizedArray: 273898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert(0 && "Dependently-sized arrays don't have a known size"); 274fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 2751d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 276030d8846c7e520330007087e949f621989876e3aChris Lattner 27798be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 2789e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 279030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 280030d8846c7e520330007087e949f621989876e3aChris Lattner break; 2815c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 282213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 283030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 284030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 28598be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 2869e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 2874bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // FIXME: This isn't right for unusual vectors 2884bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 289030d8846c7e520330007087e949f621989876e3aChris Lattner break; 290030d8846c7e520330007087e949f621989876e3aChris Lattner } 2915d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 2929e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 293a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 294692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 295d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 296d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner assert(0 && "Incomplete types have no size!"); 2976f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 2989e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 2999e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 3006f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 301692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 302692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 303692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 3046f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 3059e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 3069e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 3076f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 30864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 30964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 31064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 31164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 312692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 3136f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 3149e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 3159e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 3166f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 317692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 3186f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 3199e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 3209e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 3216f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 322692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 3236f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 3249e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 3259e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 3266f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 327692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 3286f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 3299e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 3309e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 3316f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3326f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 3339e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 3349e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 3356f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3366f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 3375426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 3385426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 3396f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3406f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 3419e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 3429e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 3436f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 344a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 345bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 346ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb case Type::ASQual: 34798be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 34898be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 34998be4943e8dc4f3905629a7102668960873cf863Chris Lattner return getTypeInfo(QualType(cast<ASQualType>(T)->getBaseType(), 0)); 350a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek case Type::ObjCQualifiedId: 3515426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 352f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 3536f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 354485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 355485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 356485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 357485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 358485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 359485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 360f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 361f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 3625426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 363f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 364f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 365f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 366a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner case Type::Reference: 3677ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 3685d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 3696f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 3706f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 371bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 3725d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 3735d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 3745d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 3755d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 3765d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 37798be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 3789e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 3795d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 3805d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 3815d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 38244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 3831d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 38444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 38544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 38644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 38744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 38844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 3897176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case Type::Tagged: { 3901d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 3911d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 3921d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 3938389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 3948389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 3958389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 3968389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 3978389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 3981d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 3997176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 4007176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 4011d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 4027176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 4037176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 4047176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 405dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 406a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 4077176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 408d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 409464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 4109e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 411a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 412a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 4138b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 4148b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 4153b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar bool IsUnion, unsigned StructPacking, 4168b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 4173b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned FieldPacking = StructPacking; 4188b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 4198b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 4208b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 4213b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 4223b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: Should this override struct packing? Probably we want to 4233b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // take the minimum? 4243b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = FD->getAttr<PackedAttr>()) 4253b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldPacking = PA->getAlignment(); 4268b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4278b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 4288b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 4298b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 43032442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar FieldSize = 43132442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar BitWidthExpr->getIntegerConstantExprValue(Context).getZExtValue(); 4328b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4338b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 4348b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 4358b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 4368b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4373b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 4383b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 4393b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. 4403b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 4413b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 4428b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 4433b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 4443b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, FieldPacking); 4458b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 4468b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 4478b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4488b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 4498b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 4508b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 4518b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 4528b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4538b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 4548b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 4558b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 4568b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4578389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 4588389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 4598b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 4608b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 4618b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 4628b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 463c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 4648b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 4658b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4668b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 4678b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 4688b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 4698b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 4708b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4718b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4723b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 4733b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 4743b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. Additionally, the packing alignment must be at least 4753b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a byte for non-bitfields. 4763b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // 4773b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 4783b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 4793b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 4803b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, std::max(8U, FieldPacking)); 4818b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 4828b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 4838b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4848b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 4858b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 4868b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4878b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4888b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 4898b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 4908b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 4928b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 4938b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 4948b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4958b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 4968b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4978b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4988b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 4998b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 5008b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 5018b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 502a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanianstatic void CollectObjCIvars(const ObjCInterfaceDecl *OI, 503a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian std::vector<FieldDecl*> &Fields) { 504a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian const ObjCInterfaceDecl *SuperClass = OI->getSuperClass(); 505a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (SuperClass) 506a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian CollectObjCIvars(SuperClass, Fields); 507a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 508a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 509a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian ObjCIvarDecl *IVDecl = (*I); 510a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 511a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 512a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 513a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 514a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 515a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// addRecordToClass - produces record info. for the class for its 516a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// ivars and all those inherited. 517a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// 518a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanianconst RecordDecl *ASTContext::addRecordToClass(const ObjCInterfaceDecl *D) 519a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian{ 520a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian const RecordDecl *&RD = ASTRecordForInterface[D]; 521a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (RD) 522a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian return RD; 523a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian std::vector<FieldDecl*> RecFields; 524a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian CollectObjCIvars(D, RecFields); 525a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecordDecl *NewRD = RecordDecl::Create(*this, TagDecl::TK_struct, 0, 526a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian D->getLocation(), 527a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian D->getIdentifier()); 528a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian /// FIXME! Can do collection of ivars and adding to the record while 529a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian /// doing it. 530a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (unsigned int i = 0; i != RecFields.size(); i++) { 531a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian FieldDecl *Field = FieldDecl::Create(*this, NewRD, 532a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecFields[i]->getLocation(), 533a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecFields[i]->getIdentifier(), 534a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecFields[i]->getType(), 535a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecFields[i]->getBitWidth(), false, 0); 536a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian NewRD->addDecl(*this, Field); 537a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 538a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian NewRD->completeDefinition(*this); 539a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RD = NewRD; 540a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian return RD; 541a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 54244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 543efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian/// setFieldDecl - maps a field for the given Ivar reference node. 544efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian// 545efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanianvoid ASTContext::setFieldDecl(const ObjCInterfaceDecl *OI, 546efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian const ObjCIvarDecl *Ivar, 547efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian const ObjCIvarRefExpr *MRef) { 548efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian FieldDecl *FD = (const_cast<ObjCInterfaceDecl *>(OI))-> 549efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian lookupFieldDeclForIvar(*this, Ivar); 550efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian ASTFieldForIvarRef[MRef] = FD; 551efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian} 552efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian 55361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// getASTObjcInterfaceLayout - Get or compute information about the layout of 55461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// the specified Objective C, which indicates its size and ivar 55544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel/// position information. 55644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 55744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang PatelASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 55844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 55944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout *&Entry = ASTObjCInterfaces[D]; 56044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (Entry) return *Entry; 56144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 56244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 56344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 5646a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 5656a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned FieldCount = D->ivar_size(); 5666a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 5676a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel FieldCount++; 5686a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 5696a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 5706a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel uint64_t Size = SL.getSize(); 5716a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(Size, Alignment); 5726a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 57361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner // Super class is at the beginning of the layout. 57461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner NewEntry->SetFieldOffset(0, 0); 5756a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 5766a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(); 5776a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 5786a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 57944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Entry = NewEntry; 58044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 5813b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 5823b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 5833b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 58444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 58544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 58644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 58744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 58844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 58944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 59044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 59144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel for (ObjCInterfaceDecl::ivar_iterator IVI = D->ivar_begin(), 59244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel IVE = D->ivar_end(); IVI != IVE; ++IVI) { 59344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ObjCIvarDecl* Ivar = (*IVI); 5943b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar NewEntry->LayoutField(Ivar, i++, false, StructPacking, *this); 59544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 59644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 59744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 59844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 59944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 60044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 60144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 60244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 60388a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 604464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 605464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 60698be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 6074b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 6084b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 6094bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 610464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 61188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 612464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 6134bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 61488a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 61588a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 61688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 617464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 6184bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 619e267ff35b2f4e9d2b0d8bf24109d41cc7398b61bDouglas Gregor // FIXME: Avoid linear walk through the fields, if possible. 62044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->InitializeLayout(std::distance(D->field_begin(), D->field_end())); 62139ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 622464175bba1318bef7905122e9fda20cff926df78Chris Lattner 6233b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 6243b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 6253b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 6263b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 6274bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 6288b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 6298b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 6304bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 6314bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 6324bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 63344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor unsigned FieldIdx = 0; 634a4c46df1cd63e06af2a094b68b902a3eb232f056Douglas Gregor for (RecordDecl::field_const_iterator Field = D->field_begin(), 635a4c46df1cd63e06af2a094b68b902a3eb232f056Douglas Gregor FieldEnd = D->field_end(); 63644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; (void)++Field, ++FieldIdx) 63744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->LayoutField(*Field, FieldIdx, IsUnion, StructPacking, *this); 6384bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 6394bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 6404bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 6418b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->FinalizeLayout(); 6425d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 643464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 644464175bba1318bef7905122e9fda20cff926df78Chris Lattner 645a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 646a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 647a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 648a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 649ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher LambQualType ASTContext::getASQualType(QualType T, unsigned AddressSpace) { 650f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 651f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 652f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 653f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 654f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Type's cannot have multiple ASQuals, therefore we know we only have to deal 655f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // with CVR qualifiers from here on out. 656f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(CanT.getAddressSpace() == 0 && 657f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner "Type is already address space qualified"); 658f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 659f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Check if we've already instantiated an address space qual'd type of this 660f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // type. 661ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 662f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType::Profile(ID, T.getTypePtr(), AddressSpace); 663ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 664ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (ASQualType *ASQy = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 665ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb return QualType(ASQy, 0); 666ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 667ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 668ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 669ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 670ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (!T->isCanonical()) { 671f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getASQualType(CanT, AddressSpace); 672ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 673ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // Get the new insert position for the node we care about. 674ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualType *NewIP = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos); 675f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 676ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 677f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType *New = new ASQualType(T.getTypePtr(), Canonical, AddressSpace); 678ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualTypes.InsertNode(New, InsertPos); 679ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 680f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return QualType(New, T.getCVRQualifiers()); 681ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 682ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 683a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 6845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 6855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 6865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 6875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 6885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 6895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 6905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 6915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 6975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 700f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 7015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 704f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *New = new ComplexType(T, Canonical); 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 7095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 7145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 7155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 7165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 7175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 7185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 7195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 7205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 7235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 7245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 7265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 7275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 729f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 7305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 733f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *New = new PointerType(T, Canonical); 7365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7415618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 7425618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 7435618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 744296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 745296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 7465618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 7475618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 7485618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 7495618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 7505618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 7515618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 7525618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 7535618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 7545618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 755296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 7565618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 7575618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 7585618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 7595618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 7605618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 7615618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 7625618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 7635618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 764f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7655618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 7665618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *New = new BlockPointerType(T, Canonical); 7675618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 7685618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 7695618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 7705618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 7715618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 7725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getReferenceType - Return the uniqued reference to the type for a reference 7735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// to the specified type. 7745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getReferenceType(QualType T) { 7755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 7765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 7775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 7785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 7795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ReferenceType *RT = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 7825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 7835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 7855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 788f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getReferenceType(getCanonicalType(T)); 7895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *NewIP = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 792f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *New = new ReferenceType(T, Canonical); 7965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceTypes.InsertNode(New, InsertPos); 7985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 801fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 802fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 803fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 804c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff const llvm::APInt &ArySize, 805c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 806c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 8075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 808fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType::Profile(ID, EltTy, ArySize); 8095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8117192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 8127192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 8135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 8145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 8175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 819f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 820c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 8215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8227192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 8237192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 824f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 827c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ConstantArrayType *New = new ConstantArrayType(EltTy, Canonical, ArySize, 828c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 8297192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 834bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 835bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 836c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 837c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 838c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 839c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 840c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 841c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 842c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayType *New = new VariableArrayType(EltTy, QualType(), NumElts, 843c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 844c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 845c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 846c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 847c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 848c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 849c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 850898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 851898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 852898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// type. FIXME: We will need these to be uniqued, or at least 853898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// comparable, at some point. 854898574e7496ba8fd76290079d3a9d06954992734Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, Expr *NumElts, 855898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 856898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor unsigned EltTypeQuals) { 857898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 858898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 859898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 860898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Since we don't unique expressions, it isn't possible to unique 861898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependently-sized array types. 862898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 863898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayType *New 864898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = new DependentSizedArrayType(EltTy, QualType(), NumElts, 865898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ASM, EltTypeQuals); 866898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 867898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayTypes.push_back(New); 868898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 869898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 870898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 871898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 872c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 873c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 874c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 875c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 876c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType::Profile(ID, EltTy); 877c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 878c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 879c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 880c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 881c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 882c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 883c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 884c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 885c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 886c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 887c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 888f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 8892bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 890c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 891c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 892c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 893c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 894f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8952bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 896c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 897c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *New = new IncompleteArrayType(EltTy, Canonical, 898c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 899c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 900c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 901c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 902c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 903fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 904fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 90573322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 90673322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 90773322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 9095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 910f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 91173322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 9125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 9145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 91573322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 9185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 9195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 9215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 9225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 924f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 9255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 928f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *New = new VectorType(vecType, NumElts, Canonical); 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 936213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 93773322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 938213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 93973322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 94073322924127c873c13101b705dd823f5539ffa5fSteve Naroff 941f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 942213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 94373322924127c873c13101b705dd823f5539ffa5fSteve Naroff 94473322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 94573322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 946213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 94773322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 94873322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 94973322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 95073322924127c873c13101b705dd823f5539ffa5fSteve Naroff 95173322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 95273322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 95373322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 95473322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 955213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 95673322924127c873c13101b705dd823f5539ffa5fSteve Naroff 95773322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 95873322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 959f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 96073322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 961213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman ExtVectorType *New = new ExtVectorType(vecType, NumElts, Canonical); 96273322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 96373322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 96473322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 96573322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 96673322924127c873c13101b705dd823f5539ffa5fSteve Naroff 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionTypeNoProto - Return a K&R style C function type like 'int()'. 9685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 9695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getFunctionTypeNoProto(QualType ResultTy) { 9705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 9715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 9725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 9735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto::Profile(ID, ResultTy); 9745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeNoProto *FT = 9775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos)) 9785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 9795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 982f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionTypeNoProto(getCanonicalType(ResultTy)); 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *NewIP = 9865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos); 987f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *New = new FunctionTypeNoProto(ResultTy, Canonical); 9915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 99256cd7e3848c2d59ca2ec3b72d0834192edf0bcdfEli Friedman FunctionTypeNoProtos.InsertNode(New, InsertPos); 9935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 9975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 99861710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 999971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1000971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned TypeQuals) { 10015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 10025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 10035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 1004971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis FunctionTypeProto::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1005971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals); 10065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeProto *FTP = 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos)) 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 10115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 10195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 10225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1024f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1026f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 10287fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis isVariadic, TypeQuals); 10295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *NewIP = 10325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos); 1033f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FunctionTypeProto objects are not allocated with new because they have a 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // variable size array (for parameter types) at the end of them. 10385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *FTP = 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer (FunctionTypeProto*)malloc(sizeof(FunctionTypeProto) + 1040942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner NumArgs*sizeof(QualType)); 10415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer new (FTP) FunctionTypeProto(ResultTy, ArgArray, NumArgs, isVariadic, 1042971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals, Canonical); 10435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 10445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.InsertNode(FTP, InsertPos); 10455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10482ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 10492ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 10504b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 10511e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 10522ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 10532ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 10541e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 10552ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 105672c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor else if (TemplateTypeParmDecl *TP = dyn_cast<TemplateTypeParmDecl>(Decl)) 105772c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor return getTemplateTypeParmType(TP); 10581e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 10592ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 106049aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 10611e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (CXXRecordDecl *CXXRecord = dyn_cast<CXXRecordDecl>(Decl)) { 10624b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek Decl->TypeForDecl = PrevDecl ? PrevDecl->TypeForDecl 10634b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek : new CXXRecordType(CXXRecord); 10644b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 10651e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 10664b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek Decl->TypeForDecl = PrevDecl ? PrevDecl->TypeForDecl 10674b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek : new RecordType(Record); 10684b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 10691e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) 10707df7b6bb800e1987951285ea192e4f347e1b603aDouglas Gregor Decl->TypeForDecl = PrevDecl ? PrevDecl->TypeForDecl 10717df7b6bb800e1987951285ea192e4f347e1b603aDouglas Gregor : new EnumType(Enum); 107249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 10732ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 107449aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 10754b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 107649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 10772ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 10782ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 10794b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenekvoid ASTContext::setTagDefinition(TagDecl* D) { 10804b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert (D->isDefinition()); 10817df7b6bb800e1987951285ea192e4f347e1b603aDouglas Gregor cast<TagType>(D->TypeForDecl)->decl = D; 10824b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek} 10834b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek 10845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 10875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1089f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 1090c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Decl->TypeForDecl = new TypedefType(Type::TypeName, Decl, Canonical); 10915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 10925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 109572c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor/// getTemplateTypeParmType - Return the unique reference to the type 109672c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor/// for the specified template type parameter declaration. 109772c3f314d92d65c050ee1c07b7753623c044d6c7Douglas GregorQualType ASTContext::getTemplateTypeParmType(TemplateTypeParmDecl *Decl) { 109872c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor if (!Decl->TypeForDecl) { 109972c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor Decl->TypeForDecl = new TemplateTypeParmType(Decl); 110072c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor Types.push_back(Decl->TypeForDecl); 110172c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor } 110272c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor return QualType(Decl->TypeForDecl, 0); 110372c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor} 110472c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 1105a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 11063536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 1107a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCInterfaceType(ObjCInterfaceDecl *Decl) { 11083536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 11093536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1110a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->TypeForDecl = new ObjCInterfaceType(Type::ObjCInterface, Decl); 11113536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 11123536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 11133536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 11143536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 111588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 111688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 111788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 111888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 11192e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 112088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 112188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 112288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 112388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 112488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 112588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 112688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 112788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 112888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 112988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 113088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 113188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 113288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 113388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 113488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1135065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1136065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1137a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1138a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 113988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 114088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 114188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 11424b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1143b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 11444b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 11454b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1146a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1147a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 11484b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 11494b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 11504b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1151a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1152a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek new ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 11534b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1154a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 11554b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 11564b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 11574b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 115888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 115988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 116062f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 1161c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 116288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 116388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 116488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1165c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 1166a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 1167c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1168c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 1169a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 117062f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 1171c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 1172c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1173c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 117462f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdType *QType = new ObjCQualifiedIdType(Protocols, NumProtocols); 1175c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 1176a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 1177c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 1178c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 1179c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 11809752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfExpr - Unlike many "get<Type>" functions, we can't unique 11819752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfExpr AST's (since expression's are never shared). For example, 11829752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 11839752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 11849752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 11858d1a3b8ca1e5fcc4567b5a6f51d82be2e460de1cSteve NaroffQualType ASTContext::getTypeOfExpr(Expr *tofExpr) { 1186f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 11879752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfExpr *toe = new TypeOfExpr(tofExpr, Canonical); 11889752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 11899752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1190d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1191d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 11929752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 11939752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 11949752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 11959752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 11969752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1197d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1198f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 11999752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfType *tot = new TypeOfType(tofType, Canonical); 12009752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 12019752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1202d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1203d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 12045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1207d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 12082ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 12095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 12125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1215b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 12165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 121855f4b02bc71e7347986c6a5249bef635aac1901aArgyrios Kyrtzidis/// getWCharType - Return the unique type for "wchar_t" (C99 7.17), the 1219fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// width of characters in wide strings, The value is target dependent and 1220fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// needs to agree with the definition in <stddef.h>. 122155f4b02bc71e7347986c6a5249bef635aac1901aArgyrios KyrtzidisQualType ASTContext::getWCharType() const { 122264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (LangOpts.CPlusPlus) 122364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 122464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1225b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor // FIXME: In C, shouldn't WCharTy just be a typedef of the target's 1226b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor // wide-character type? 1227b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getWCharType()); 1228fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman} 1229fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman 123064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 123164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 123264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 123364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 123464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 123564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 123664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 123764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 123864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 123964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 124064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 124164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 124264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 124364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 12448b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 12458b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 12468b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1247b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 12488b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 12498b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1250e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1251e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1252e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1253e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 125477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 125577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 125677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 125777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 125877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 125977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 126077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 126177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1262c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1263c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1264c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1265c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1266c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1267c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1268c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1269c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1270c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1271c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1272c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1273c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1274c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1275c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1276c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1277c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1278c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1279c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1280c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1281c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1282c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1283c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1284c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1285898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 1286898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return getDependentSizedArrayType(NewEltTy, DSAT->getSizeExpr(), 1287898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1288898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier()); 1289898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1290c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1291c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1292c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1293c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1294c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1295c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1296c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1297c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1298c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1299c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1300c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1301c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1302c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1303c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1304c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1305c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1306c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1307c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1308c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Make sure to look through type qualifiers (like ASQuals) for the negative 1309c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1310c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1311c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1312c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1313c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1314c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1315c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1316c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1317c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1318c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1319c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1320c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1321c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1322c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1323c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1324c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1325c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Rip through ASQualType's and typedefs to get to a concrete type. 1326c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1327c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ASQualType *ASQT = dyn_cast<ASQualType>(Ty)) { 1328c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner AddrSpace = ASQT->getAddressSpace(); 1329c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = ASQT->getBaseType(); 1330c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1331c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1332c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1333c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1334c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1335c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1336c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1337c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1338c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1339c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1340c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1341c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1342c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1343c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1344c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1345c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1346c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1347c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1348c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1349c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1350c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getASQualType(NewEltTy, AddrSpace); 1351c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1352c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1353c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1354c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1355c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1356c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1357c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1358c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1359c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1360c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1361898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1362898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 1363898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 1364898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 1365898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 1366898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 1367898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1368898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier())); 1369c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1370c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1371c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1372c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1373c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 137477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 137577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 137677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1377e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1378e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1379e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1380e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1381e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1382e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1383e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1384c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1385c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1386c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1387c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1388c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1389c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1390e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1391c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1392e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1393e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1394c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1395e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1396e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 13975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 13985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1399a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1400ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 14015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1402a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1403ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1404a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 14055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 14065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 14075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 14085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1411716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1412716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1413716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1414716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 14151361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 14161361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 14171361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 14181361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 14191361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1420716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1421f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1422f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1423f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1424f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1425f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 14261361b11066239ea15764a2a844405352d87296b3Chris Lattner 14271361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 14281361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 14291361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 14301361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 14311361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 14321361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 14335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14367cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 14377cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 14387cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 14397cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1440a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1441a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1442a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1443a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1444a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1445fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1446a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1447fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1448fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 14495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1451f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1452f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1453f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1454f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattnerstatic unsigned getIntegerRank(Type *T) { 1455f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1456f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (isa<EnumType>(T)) 1457f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner return 4; 1458f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 1459f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 14607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 14617cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 14627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 14637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 14647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 14657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 14667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 14677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 2; 14687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 14697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 14707cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 3; 14717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 14727cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 14737cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 4; 14747cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 14757cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 14767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 5; 14777cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 14787cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 14797cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 6; 1480f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1481f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1482f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 14837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 14847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 14857cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 14867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1487f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1488f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 14897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 14905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1491f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1492f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 14935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 14957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 14965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 14987cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 14997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 15007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 15017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 15027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 15037cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 15047cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 15057cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 15067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 15077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 15087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 15097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 15107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 15117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 15127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 15137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 15147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 15157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 15167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 15175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 15197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 15207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 15217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 15225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 152371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 152471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 152571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 152671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 15276c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 152839ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1529df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 1530f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 153171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 153271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 153371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 1534f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 1535f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 153671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 1537f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 153871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 1539f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 154071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 154144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 154244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 154344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 154444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 154544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 154644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /*Mutable=*/false, /*PrevDecl=*/0); 154744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->addDecl(*this, Field, true); 154844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 154944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 155044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 155171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 155271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 155371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 15548467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 1555b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1556bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 1557bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 1558bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 155944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 156044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 156144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 156244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 1563bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 1564bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 1565bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 1566bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 1567bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 1568bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 1569bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 1570bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 157144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 157244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 157344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 157444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 157544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 157644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /*Mutable=*/false, /*PrevDecl=*/0); 157744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->addDecl(*this, Field, true); 157844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 1579bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 158044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 1581bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 1582bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1583bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 1584bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 1585bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1586e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 1587e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 15882d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 1589e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 1590bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 1591bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 159285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 159385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 159485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 159585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1596a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 159733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 1598a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 159998be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 160033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 160133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 160233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 160398be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 160433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 160533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 160698be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 160798be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 160833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 160933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1610a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 161133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 1612c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 1613e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1614c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1615ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 1616a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 161733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 16180d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 161933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 162033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 162133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 162233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 162398be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 162433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 162533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 162633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 162733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int NumOfParams = Decl->getNumParams(); 162833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 162933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1630a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek int sz = getObjCEncodingTypeSize (PType); 1631a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 163233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 163333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 163433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 163533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 163633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 163733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 163833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 163933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 164033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 164133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1642ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 164333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 1644a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier( 1645a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->getParamDecl(i)->getObjCDeclQualifier(), S); 16460d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 164733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 1648a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 164933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 165033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 165133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1652c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 1653c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// method declaration. If non-NULL, Container must be either an 1654c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 1655c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 1656c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 1657c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 1658e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1659c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 1660c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 1661c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 1662c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1663c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 1664c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 1665c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 1666c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 1667c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1668c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = CID->propimpl_begin(), e = CID->propimpl_end(); i != e; ++i) { 1669c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1670c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1671c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1672c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1673c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1674c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1675c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1676c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1677c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1678c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 167961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 1680c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1681c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = OID->propimpl_begin(), e = OID->propimpl_end(); i != e; ++i) { 1682c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1683c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1684c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1685c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1686c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1687c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1688c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1689c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1690c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1691c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1692c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1693c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1694c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1695c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 1696c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1697c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 1698c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: GCC uses a generating_property_type_encoding mode during 1699c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // this part. Investigate. 17000d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PD->getType(), S); 1701c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1702c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 1703c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 1704c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1705c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 1706c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 1707c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 1708c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 1709c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1710c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1711c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1712c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 1713c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 1714c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 1715c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 1716c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1717c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 1718c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 1719077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 1720c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1721c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1722c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 1723c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 1724077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 1725c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1726c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1727c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 1728c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 1729c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 173039f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 1731c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1732c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1733c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 1734c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 1735c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 17367d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 173743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FieldDecl *Field) const { 173882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 173982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 174082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 174182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 174243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(T, S, true, true, Field); 174382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 174482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 174582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 174682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 174782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 174843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FieldDecl *FD) const { 1749e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 175043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD && FD->isBitField()) { 175143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const Expr *E = FD->getBitWidth(); 175243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 175343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(this); 175443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian unsigned N = E->getIntegerConstantExprValue(*Ctx).getZExtValue(); 175543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += 'b'; 175643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += llvm::utostr(N); 175785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 175843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else { 175943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian char encoding; 176043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian switch (BT->getKind()) { 176143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian default: assert(0 && "Unhandled builtin type kind"); 176243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Void: encoding = 'v'; break; 176343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Bool: encoding = 'B'; break; 176443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_U: 176543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UChar: encoding = 'C'; break; 176643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UShort: encoding = 'S'; break; 176743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UInt: encoding = 'I'; break; 176843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::ULong: encoding = 'L'; break; 176943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::ULongLong: encoding = 'Q'; break; 177043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_S: 177143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::SChar: encoding = 'c'; break; 177243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Short: encoding = 's'; break; 177343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Int: encoding = 'i'; break; 177443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Long: encoding = 'l'; break; 177543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongLong: encoding = 'q'; break; 177643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Float: encoding = 'f'; break; 177743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Double: encoding = 'd'; break; 177843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongDouble: encoding = 'd'; break; 177943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 178085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 178143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += encoding; 178243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 1783c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1784a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (T->isObjCQualifiedIdType()) { 1785c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // Treat id<P...> same as 'id' for encoding purposes. 178682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar return getObjCEncodingForTypeImpl(getObjCIdType(), S, 178782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar ExpandPointedToStructures, 178843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ExpandStructures, FD); 1789c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1790c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 179185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 1792c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian if (isObjCIdType(PointeeTy)) { 1793c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 1794c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 1795c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian } 1796c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian else if (PointeeTy->isObjCInterfaceType()) { 1797c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian S += '@'; 1798adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian if (FD) { 1799adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian ObjCInterfaceDecl *OI = PointeeTy->getAsObjCInterfaceType()->getDecl(); 1800adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 1801adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += OI->getNameAsCString(); 1802adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 1803adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian } 1804c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian return; 1805a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCClassType(PointeeTy)) { 18068baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 18078baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1808a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 18098baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 18108baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1811c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 181285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 181385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 181485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 181585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 1816e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 181785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 181885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 181985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 182085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 182185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 182285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 182382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar getObjCEncodingForTypeImpl(PT->getPointeeType(), S, 1824d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar false, ExpandPointedToStructures, 182543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 1826c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 1827c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 1828c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 182985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '['; 183085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 183185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 183285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 183385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson else 183485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson assert(0 && "Unhandled array type!"); 183585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 183682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar getObjCEncodingForTypeImpl(AT->getElementType(), S, 183743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian false, ExpandStructures, FD); 183885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += ']'; 1839c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 1840c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 18416de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 184282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 1843d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 1844502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 1845502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 1846502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 1847502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 1848502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 1849502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 18500d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 18517d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 185244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (RecordDecl::field_iterator Field = RDecl->field_begin(), 185344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldEnd = RDecl->field_end(); 185444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 185543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 1856d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 185744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 1858d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 1859d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 1860d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 1861d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 186243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 186343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 186443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 1865d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 186644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 186743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 1868d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 18697d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 18706de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 1871d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 18725e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 18735e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff S += 'i'; 1874485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 1875485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff S += '^'; // This type string is the same as general pointers. 187643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } else if (T->isObjCInterfaceType()) { 187743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 187843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 187943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 188043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 188143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 188243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 188343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian std::vector<FieldDecl*> RecFields; 188443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 188543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian for (unsigned int i = 0; i != RecFields.size(); i++) { 188643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 188743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 188843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 188943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 189043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 189143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 189243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 189343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 189443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 189543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 1896f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 189785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 189885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1899a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 1900ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 1901ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 1902ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 1903ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 1904ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 1905ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 1906ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 1907ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 1908ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 1909ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 1910ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 1911ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 1912ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 1913ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 1914ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 1915b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 1916b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 1917b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 1918b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1919b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 1920b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 1921b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1922a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCIdType(TypedefDecl *TD) 19237e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 1924a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = getTypedefType(TD); 19257e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 19267e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 19277e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 19287e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(ptr && "'id' incorrectly typed"); 19297e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 19307e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(rec && "'id' incorrectly typed"); 19317e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 19327e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 19337e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1934a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCSelType(TypedefDecl *TD) 1935b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 1936a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCSelType = getTypedefType(TD); 1937b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1938b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 1939b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 1940b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(ptr && "'SEL' incorrectly typed"); 1941b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 1942b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(rec && "'SEL' incorrectly typed"); 1943b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 1944b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 1945b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1946a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 1947390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 1948a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 1949390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 1950390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 1951a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCClassType(TypedefDecl *TD) 19528baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 1953a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = getTypedefType(TD); 19548baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 19558baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 19568baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 19578baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 19588baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 19598baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 19608baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 19618baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 19628baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 1963a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 1964a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 19652198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 19662198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1967a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 19682198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 19692198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1970b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 1971d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 1972d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 1973d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 1974b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 1975b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 1976b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 1977b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 1978b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 1979b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 1980b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 1981b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 1982b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 1983b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 1984b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 1985b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 1986b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 1987b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 1988b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 1989b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1990b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 1991b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 1992b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 1993b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1994b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 1995b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 1996b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 1997b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 1998b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 1999b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty->isObjCQualifiedIdType()) 2000b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2001b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 20026ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // Blocks are objects. 20036ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff if (Ty->isBlockPointerType()) 20046ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff return true; 20056ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff 20066ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // All other object types are pointers. 2007b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (!Ty->isPointerType()) 2008b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 2009b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2010b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // Check to see if this is 'id' or 'Class', both of which are typedefs for 2011b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // pointer types. This looks for the typedef specifically, not for the 2012b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // underlying type. 2013b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty == getObjCIdType() || Ty == getObjCClassType()) 2014b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2015b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2016b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 2017b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return Ty->getAsPointerType()->getPointeeType()->isObjCInterfaceType(); 2018b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 2019b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 20206ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 20216ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 20226ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 2023770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 20241c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff/// typesAreBlockCompatible - This routine is called when comparing two 2025dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// block types. Types must be strictly compatible here. For example, 2026dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// C unfortunately doesn't produce an error for the following: 2027dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2028dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*emptyArgFunc)(); 2029dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*intArgList)(int) = emptyArgFunc; 2030dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2031dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// For blocks, we will produce an error for the following (similar to C++): 2032dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2033dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^emptyArgBlock)(); 2034dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^intArgBlock)(int) = emptyArgBlock; 2035dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2036dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// FIXME: When the dust settles on this integration, fold this into mergeTypes. 2037dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 20381c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroffbool ASTContext::typesAreBlockCompatible(QualType lhs, QualType rhs) { 2039c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *lbase = lhs->getAsFunctionType(); 2040c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *rbase = rhs->getAsFunctionType(); 2041c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 2042c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 2043c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (lproto && rproto) 2044c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return !mergeTypes(lhs, rhs).isNull(); 2045c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return false; 20461c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff} 20471c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff 20486ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 20496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 20506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 20516ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 20526ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 20536ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 205461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 20556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 20566ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 20573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 20586ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 20596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 20606ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 20613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 20623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 20636ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 20646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 20656ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 20666ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 20676ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 20686ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 20696ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 20706ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 20716ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 20726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 20736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 20746ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 20756ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 20766ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 20776ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 20786ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 20796ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 20806ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 20816ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(); 20826ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPE = LHSP->qual_end(); 20836ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(); 20846ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPE = RHSP->qual_end(); 20856ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 20866ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // All protocols in LHS must have a presence in RHS. Since the protocol lists 20876ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // are both sorted alphabetically and have no duplicates, we can scan RHS and 20886ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // LHS in a single parallel scan until we run out of elements in LHS. 20896ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHSPI != LHSPE && "Empty LHS protocol list?"); 20906ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *LHSProto = *LHSPI; 20916ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 20926ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner while (RHSPI != RHSPE) { 20936ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *RHSProto = *RHSPI++; 20946ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If the RHS has a protocol that the LHS doesn't, ignore it. 20956ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (RHSProto != LHSProto) 20966ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner continue; 20976ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 20986ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Otherwise, the RHS does have this element. 20996ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ++LHSPI; 21006ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (LHSPI == LHSPE) 21016ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // All protocols in LHS exist in RHS. 21026ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 21036ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner LHSProto = *LHSPI; 21046ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner } 21056ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 21066ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If we got here, we didn't find one of the LHS's protocols in the RHS list. 21076ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 21086ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 21096ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 2110ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 2111ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 2112ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 2113ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 21143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 21153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 21163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 21173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21183d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 21193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 21203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 21213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 21223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 21233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 21243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 21253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 21273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 21283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 212961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 213061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 213161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 213261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 21333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 21353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 21363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 21373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 21393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 21403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 21413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 21433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 21443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 21453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21467fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 21477fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 21487fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 21493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 21503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 21513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 21523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 21533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 21543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 21553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 21563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 215761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 215861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 215961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 216061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 21613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 21623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 21633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 21643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 21657fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 21663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 21673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 21693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 21703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *proto = lproto ? lproto : rproto; 21723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 21733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 21743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 21753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 21763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 21773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 21783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 21793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 21803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 21813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 21823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 21833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 21843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 21853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 21863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 21883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 21893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 21907fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 21917fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 21923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 21933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 21953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 21963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionTypeNoProto(retType); 21973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 21983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 21993d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 220043d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 220143d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 220243d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 220343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // expression is an lvalue. 22043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 22053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 22063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 2207c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 22083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 2209c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 22103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 22113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 22123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 22133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 2214f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 22153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 22163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 22173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 22183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 22193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers() || 22203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman LHSCan.getAddressSpace() != RHSCan.getAddressSpace()) 22213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 22223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 22233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 22243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 2225f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 22261adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 22271adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 22281adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 22291adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 22304c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 22314c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 2232a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 2233a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 2234a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 2235a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 2236a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 2237213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 2238213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 2239213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 2240ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 2241b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 2242b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 2243b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 22443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 22454e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 22464e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 2247bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // ID is compatible with all qualified id types. 2248bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (LHS->isObjCQualifiedIdType()) { 2249bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) { 2250bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2251bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (isObjCIdType(pType)) 2252bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2253bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2254bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2255bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2256bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2257bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2258bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2259bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2260bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2261bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (RHS->isObjCQualifiedIdType()) { 2262bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) { 2263bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2264bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (isObjCIdType(pType)) 2265bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2266bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2267bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2268bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2269bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2270bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2271bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2272bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2273bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 22741adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 22751adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 22763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 22773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 22783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 2279bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 22803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 22813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 22823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 2283bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 22841adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 22853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2286ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 22873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 22884a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 22891adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 22901adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 22913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 22923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 22933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 22943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 22953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 22963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 229761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 229861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 229961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 230061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 23013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 23023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 2303c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 2304c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 2305c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 2306c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 2307c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 2308c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 2309c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 2310c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 2311c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 2312c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 2313c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 2314c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 2315c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 23161adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 23173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 23183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 23193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 23203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 23213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 23223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 23233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 23243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 23253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 23263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 232761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 232861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 232961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 233061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 23313bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 23323bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 23333bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 23343bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 23353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 23363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 233761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 233861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 233961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 234061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 23413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 23423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 23433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 23443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 23453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 23463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 23473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 23483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 23493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 23503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 23513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 23523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 23533bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 23543bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 235561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(),0); 23563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 23571adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 23583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 23593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman case Type::Tagged: 23603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 23613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCIdType(LHS) && isObjCClassType(RHS)) return LHS; 23623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCClassType(LHS) && isObjCIdType(RHS)) return LHS; 23633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 23641adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 23653cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 23663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 23673cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 23683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 23693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 237061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 23711adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ObjCInterface: 23723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Distinct ObjC interfaces are not compatible; see canAssignObjCInterfaces 23733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // for checking assignment/comparison safety 23743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2375bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff case Type::ObjCQualifiedId: 2376bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Distinct qualified id's are not compatible. 2377bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 23781adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner default: 23791adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner assert(0 && "unexpected type"); 23803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2381ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 2382ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 23837192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 23845426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 2385ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 2386ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 2387ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 2388ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 2389ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 2390ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman // At the moment, only bool has padding bits 2391ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 2392ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2393ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2394ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 2395ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 2396ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 2397ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 2398ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 2399ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 2400ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 2401ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 2402ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 2403ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 2404ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 2405ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 2406ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 2407ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 2408ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 2409ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 2410ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 2411ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 2412ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 2413ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 2414ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 2415ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 2416ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2417ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2418ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2419ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 24205426bf6456a5aeac416a9150de157904d101c819Chris Lattner// Serialization Support 24215426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 24225426bf6456a5aeac416a9150de157904d101c819Chris Lattner 24237192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek/// Emit - Serialize an ASTContext object to Bitcode. 24247192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenekvoid ASTContext::Emit(llvm::Serializer& S) const { 2425e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek S.Emit(LangOpts); 24265451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(SourceMgr); 24275451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Target); 24285451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Idents); 24295451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Selectors); 24307192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 2431fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // Emit the size of the type vector so that we can reserve that size 2432fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // when we reconstitute the ASTContext object. 2433a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek S.EmitInt(Types.size()); 2434a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 243503ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (std::vector<Type*>::const_iterator I=Types.begin(), E=Types.end(); 243603ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek I!=E;++I) 243703ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek (*I)->Emit(S); 2438a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 2439ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis S.EmitOwnedPtr(TUDecl); 2440ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2441a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl); 24427192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek} 24437192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 24440f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted KremenekASTContext* ASTContext::Create(llvm::Deserializer& D) { 2445e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2446e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek // Read the language options. 2447e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LangOptions LOpts; 2448e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LOpts.Read(D); 2449e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2450fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SourceManager &SM = D.ReadRef<SourceManager>(); 2451fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek TargetInfo &t = D.ReadRef<TargetInfo>(); 2452fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek IdentifierTable &idents = D.ReadRef<IdentifierTable>(); 2453fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels = D.ReadRef<SelectorTable>(); 24540ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2455fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek unsigned size_reserve = D.ReadInt(); 2456fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 24572e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor ASTContext* A = new ASTContext(LOpts, SM, t, idents, sels, 24582e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor size_reserve); 2459fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 246003ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (unsigned i = 0; i < size_reserve; ++i) 246103ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek Type::Create(*A,i,D); 24620ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2463ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis A->TUDecl = cast<TranslationUnitDecl>(D.ReadOwnedPtr<Decl>(*A)); 2464ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2465a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: A->CFConstantStringTypeDecl = D.ReadOwnedPtr<RecordDecl>(); 2466fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 2467fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek return A; 2468fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek} 2469