ASTContext.cpp revision 3bc0f45a5e65814f42b22dcdf7249d1120d16f36
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 30e91593ef084479340582b2ba177b44be50a717b7Daniel DunbarASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, TargetInfo &t, 31e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 32e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar unsigned size_reserve) : 33e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar CFConstantStringTypeDecl(0), SourceMgr(SM), LangOpts(LOpts), Target(t), 34e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar Idents(idents), Selectors(sels) 35e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar{ 36e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 37e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar InitBuiltinTypes(); 38e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar BuiltinInfo.InitializeBuiltins(idents, Target); 39e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 40e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 41e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 454b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 48b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 49b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumBuiltin = 0, NumPointer = 0, NumArray = 0, NumFunctionP = 0; 566d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner unsigned NumVector = 0, NumComplex = 0; 575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumFunctionNP = 0, NumTypeName = 0, NumTagged = 0, NumReference = 0; 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumTagStruct = 0, NumTagUnion = 0, NumTagEnum = 0, NumTagClass = 0; 60a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCInterfaces = 0, NumObjCQualifiedInterfaces = 0; 61a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCQualifiedIds = 0; 626cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff unsigned NumTypeOfTypes = 0, NumTypeOfExprs = 0; 635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isa<BuiltinType>(T)) 675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumBuiltin; 685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<PointerType>(T)) 695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumPointer; 705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ReferenceType>(T)) 715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumReference; 726d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<ComplexType>(T)) 736d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumComplex; 745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ArrayType>(T)) 755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumArray; 766d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<VectorType>(T)) 776d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumVector; 785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeNoProto>(T)) 795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionNP; 805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeProto>(T)) 815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionP; 825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<TypedefType>(T)) 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTypeName; 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (TagType *TT = dyn_cast<TagType>(T)) { 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTagged; 8639ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis switch (TT->getDecl()->getTagKind()) { 875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown tagged type!"); 8839ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_struct: ++NumTagStruct; break; 8939ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_union: ++NumTagUnion; break; 9039ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_class: ++NumTagClass; break; 9139ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_enum: ++NumTagEnum; break; 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 93a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isa<ObjCInterfaceType>(T)) 94a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCInterfaces; 95a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedInterfaceType>(T)) 96a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedInterfaces; 97a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedIdType>(T)) 98a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedIds; 996cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfType>(T)) 1006cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfTypes; 1016cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfExpr>(T)) 1026cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfExprs; 1033f128ad2691d299b96663da85a9e069c4081ea7cSteve Naroff else { 104beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner QualType(T, 0).dump(); 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(0 && "Unknown type!"); 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d builtin types\n", NumBuiltin); 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d pointer types\n", NumPointer); 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d reference types\n", NumReference); 1126d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d complex types\n", NumComplex); 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d array types\n", NumArray); 1146d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d vector types\n", NumVector); 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with proto\n", NumFunctionP); 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with no proto\n", NumFunctionNP); 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d typename (typedef) types\n", NumTypeName); 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d tagged types\n", NumTagged); 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d struct types\n", NumTagStruct); 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d union types\n", NumTagUnion); 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d class types\n", NumTagClass); 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d enum types\n", NumTagEnum); 123a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek fprintf(stderr, " %d interface types\n", NumObjCInterfaces); 124beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner fprintf(stderr, " %d protocol qualified interface types\n", 125a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedInterfaces); 126c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian fprintf(stderr, " %d protocol qualified id types\n", 127a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedIds); 1286cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof types\n", NumTypeOfTypes); 1296cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof exprs\n", NumTypeOfExprs); 1306cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "Total bytes = %d\n", int(NumBuiltin*sizeof(BuiltinType)+ 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumPointer*sizeof(PointerType)+NumArray*sizeof(ArrayType)+ 1336d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner NumComplex*sizeof(ComplexType)+NumVector*sizeof(VectorType)+ 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionP*sizeof(FunctionTypeProto)+ 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionNP*sizeof(FunctionTypeNoProto)+ 1366cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeName*sizeof(TypedefType)+NumTagged*sizeof(TagType)+ 1376cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeOfTypes*sizeof(TypeOfType)+NumTypeOfExprs*sizeof(TypeOfExpr))); 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back((R = QualType(new BuiltinType(K),0)).getTypePtr()); 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 15498be4943e8dc4f3905629a7102668960873cf863Chris Lattner if (Target.isCharSigned()) 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 17664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 17764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // C++ 3.9.1p5 17864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis InitBuiltinType(WCharTy, BuiltinType::WChar); 17964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 1847e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1857e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 186a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = QualType(); 1877e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = 0; 188a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = QualType(); 1898baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = 0; 1908baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 191a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 19233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 19333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 19433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 197464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 198464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 199464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 200a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 201b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 202b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 203b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 204b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 205b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 206b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 207b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 208b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 209b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 210b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 211b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 212b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 213b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 214b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 215a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 216a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 217d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 21898be4943e8dc4f3905629a7102668960873cf863Chris LattnerASTContext::getTypeInfo(QualType T) { 219f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner T = getCanonicalType(T); 2209e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner uint64_t Width; 221d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner unsigned Align; 222a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 223030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::TypeName: assert(0 && "Not a canonical type!"); 2245d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 2255d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 226692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: 227b1c2df99ba67ec6c29ac7dceaa4eb2c8cda4a017Chris Lattner assert(0 && "Incomplete types have no size!"); 228fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 229fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff assert(0 && "VLAs not implemented yet!"); 230fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 231fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType *CAT = cast<ConstantArrayType>(T); 232030d8846c7e520330007087e949f621989876e3aChris Lattner 23398be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 2349e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 235030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 236030d8846c7e520330007087e949f621989876e3aChris Lattner break; 2375c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 238213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 239030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 240030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 24198be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 2429e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 2434bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // FIXME: This isn't right for unusual vectors 2444bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 245030d8846c7e520330007087e949f621989876e3aChris Lattner break; 246030d8846c7e520330007087e949f621989876e3aChris Lattner } 2475d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 2489e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 249a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 250692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 251d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 252d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner assert(0 && "Incomplete types have no size!"); 2536f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 2549e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 2559e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 2566f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 257692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 258692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 259692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 2606f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 2619e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 2629e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 2636f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 26464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 26564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 26664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 26764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 268692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 2696f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 2709e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 2719e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 2726f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 273692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 2746f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 2759e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 2769e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 2776f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 278692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 2796f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 2809e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 2819e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 2826f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 283692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 2846f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 2859e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 2869e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 2876f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2886f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 2899e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 2909e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 2916f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2926f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 2935426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 2945426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 2956f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 2966f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 2979e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 2989e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 2996f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 300a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 301bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 302ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb case Type::ASQual: 30398be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 30498be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 30598be4943e8dc4f3905629a7102668960873cf863Chris Lattner return getTypeInfo(QualType(cast<ASQualType>(T)->getBaseType(), 0)); 306a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek case Type::ObjCQualifiedId: 3075426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 308f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 3096f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 310f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 311f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 3125426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 313f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 314f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 315f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 316a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner case Type::Reference: 3177ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 3185d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 3196f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 3206f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 321bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 3225d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 3235d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 3245d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 3255d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 3265d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 32798be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 3289e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 3295d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 3305d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 3315d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 33244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 33344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 33444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 33544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 33644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 33744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 33844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 3397176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case Type::Tagged: { 3408389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (cast<TagType>(T)->getDecl()->isInvalidDecl()) { 3418389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 3428389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 3438389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 3448389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 3458389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 3467176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner if (EnumType *ET = dyn_cast<EnumType>(cast<TagType>(T))) 3477176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 3487176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 3497176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner RecordType *RT = cast<RecordType>(T); 3507176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 3517176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 3527176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 353dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 354a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 3557176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 356d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 357464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 3589e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 359a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 360a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 3618b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 3628b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 3638b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel bool IsUnion, bool StructIsPacked, 3648b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 3658b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel bool FieldIsPacked = StructIsPacked || FD->getAttr<PackedAttr>(); 3668b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 3678b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 3688b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 3698b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3708b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 3718b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 3728b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 37332442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar FieldSize = 37432442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar BitWidthExpr->getIntegerConstantExprValue(Context).getZExtValue(); 3758b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3768b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 3778b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 3788b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 3798b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3808b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 3818b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldIsPacked) 3828b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 3838b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 3848b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 3858b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3868b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 3878b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 3888b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 3898b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 3908b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 3918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 3928b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 3938b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 3948b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 3958389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 3968389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 3978b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 3988b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 3998b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 4008b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 401c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 4028b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 4038b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4048b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 4058b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 4068b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 4078b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 4088b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4098b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4108b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldIsPacked) 4118b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 8; 4128b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 4138b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 4148b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4158b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 4168b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 4178b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4188b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4198b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 4208b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 4218b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4228b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 4238b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 4248b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 4258b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4268b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 4278b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4288b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4298b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 4308b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 4318b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 4328b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 43344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 43444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel/// getASTObjcInterfaceLayout - Get or compute information about the layout of the 43544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel/// specified Objective C, which indicates its size and ivar 43644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel/// position information. 43744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 43844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang PatelASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 43944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 44044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout *&Entry = ASTObjCInterfaces[D]; 44144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (Entry) return *Entry; 44244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 44344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 44444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 4456a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 4466a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned FieldCount = D->ivar_size(); 4476a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 4486a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel FieldCount++; 4496a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 4506a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 4516a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel uint64_t Size = SL.getSize(); 4526a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(Size, Alignment); 4536a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 4546a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->SetFieldOffset(0, 0); // Super class is at the beginning of the layout. 4556a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 4566a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(); 4576a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 4586a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 45944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Entry = NewEntry; 46044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 46144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel bool IsPacked = D->getAttr<PackedAttr>(); 46244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 46344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 46444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 46544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 46644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 46744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 46844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 46944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel for (ObjCInterfaceDecl::ivar_iterator IVI = D->ivar_begin(), 47044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel IVE = D->ivar_end(); IVI != IVE; ++IVI) { 47144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ObjCIvarDecl* Ivar = (*IVI); 47244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->LayoutField(Ivar, i++, false, IsPacked, *this); 47344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 47444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 47544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 47644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 47744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 47844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 47944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 48044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 48188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 482464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 483464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 48498be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 485464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(D->isDefinition() && "Cannot get layout of forward declarations!"); 4864bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 487464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 48888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 489464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 4904bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 49188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 49288a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 49388a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 494464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 4954bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 4968b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->InitializeLayout(D->getNumMembers()); 4974bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman bool StructIsPacked = D->getAttr<PackedAttr>(); 49839ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 499464175bba1318bef7905122e9fda20cff926df78Chris Lattner 5004bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 5018b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 5028b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 5034bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 5044bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 5054bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 5064bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman for (unsigned i = 0, e = D->getNumMembers(); i != e; ++i) { 5074bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman const FieldDecl *FD = D->getMember(i); 5088b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->LayoutField(FD, i, IsUnion, StructIsPacked, *this); 509464175bba1318bef7905122e9fda20cff926df78Chris Lattner } 5104bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 5114bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 5124bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 5138b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->FinalizeLayout(); 5145d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 515464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 516464175bba1318bef7905122e9fda20cff926df78Chris Lattner 517a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 518a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 519a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 520a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 521ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher LambQualType ASTContext::getASQualType(QualType T, unsigned AddressSpace) { 522f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 523f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 524f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 525f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 526f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Type's cannot have multiple ASQuals, therefore we know we only have to deal 527f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // with CVR qualifiers from here on out. 528f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(CanT.getAddressSpace() == 0 && 529f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner "Type is already address space qualified"); 530f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 531f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Check if we've already instantiated an address space qual'd type of this 532f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // type. 533ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 534f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType::Profile(ID, T.getTypePtr(), AddressSpace); 535ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 536ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (ASQualType *ASQy = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 537ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb return QualType(ASQy, 0); 538ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 539ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 540ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 541ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 542ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (!T->isCanonical()) { 543f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getASQualType(CanT, AddressSpace); 544ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 545ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // Get the new insert position for the node we care about. 546ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualType *NewIP = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos); 547ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb assert(NewIP == 0 && "Shouldn't be in the map!"); 548ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 549f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType *New = new ASQualType(T.getTypePtr(), Canonical, AddressSpace); 550ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualTypes.InsertNode(New, InsertPos); 551ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 552f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return QualType(New, T.getCVRQualifiers()); 553ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 554ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 555a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 5565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 5575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 5585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 5595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 5605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 5615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 5625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 5635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 5655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 5665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 5675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 5695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 5705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 5715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 572f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 5735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 5765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 5775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *New = new ComplexType(T, Canonical); 5795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 5805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 5815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 5825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 5865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 5875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 5885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 5895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 5915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 5925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 5945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 601f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 6055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 6065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *New = new PointerType(T, Canonical); 6085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 6105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getReferenceType - Return the uniqued reference to the type for a reference 6145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// to the specified type. 6155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getReferenceType(QualType T) { 6165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 6175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 6185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 6195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 6205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ReferenceType *RT = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 6235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 6245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 6265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 6275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 629f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getReferenceType(getCanonicalType(T)); 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *NewIP = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 6335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 6345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *New = new ReferenceType(T, Canonical); 6375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceTypes.InsertNode(New, InsertPos); 6395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 642fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 643fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 644fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 645c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff const llvm::APInt &ArySize, 646c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 647c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 6485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 649fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType::Profile(ID, EltTy, ArySize); 6505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 6527192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 6537192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 6545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 6555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 6585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 660f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 661c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 6637192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 6647192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 6657192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 6665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 6675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 669c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ConstantArrayType *New = new ConstantArrayType(EltTy, Canonical, ArySize, 670c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 6717192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 6725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 6745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 676bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 677bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 678c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 679c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 680c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 681c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 682c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 683c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 684c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayType *New = new VariableArrayType(EltTy, QualType(), NumElts, 685c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 686c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 687c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 688c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 689c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 690c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 691c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 692c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 693c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 694c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 695c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 696c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType::Profile(ID, EltTy); 697c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 698c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 699c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 700c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 701c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 702c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 703c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 704c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 705c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 706c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 707c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 708f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 7092bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 710c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 711c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 712c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 713c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 714c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 715c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman assert(NewIP == 0 && "Shouldn't be in the map!"); 7162bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 717c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 718c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *New = new IncompleteArrayType(EltTy, Canonical, 719c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ASM, EltTypeQuals); 720c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 721c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 722c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 723c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 724fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 725fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 72673322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 72773322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 72873322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 7295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 7305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 731f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 73273322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 7335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 73673322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 7395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 7425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 745f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 7465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 7495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 7505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *New = new VectorType(vecType, NumElts, Canonical); 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 757213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 75873322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 759213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 76073322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 76173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 762f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 763213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 76473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 76573322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 76673322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 767213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 76873322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 76973322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 77073322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 77173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 77273322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 77373322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 77473322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 77573322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 776213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 77773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 77873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 77973322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 78073322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(NewIP == 0 && "Shouldn't be in the map!"); 78173322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 782213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman ExtVectorType *New = new ExtVectorType(vecType, NumElts, Canonical); 78373322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 78473322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 78573322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 78673322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 78773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 7885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionTypeNoProto - Return a K&R style C function type like 'int()'. 7895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 7905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getFunctionTypeNoProto(QualType ResultTy) { 7915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 7925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 7935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 7945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto::Profile(ID, ResultTy); 7955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeNoProto *FT = 7985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos)) 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 8005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 803f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionTypeNoProto(getCanonicalType(ResultTy)); 8045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *NewIP = 8075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos); 8085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 8095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *New = new FunctionTypeNoProto(ResultTy, Canonical); 8125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 81356cd7e3848c2d59ca2ec3b72d0834192edf0bcdfEli Friedman FunctionTypeNoProtos.InsertNode(New, InsertPos); 8145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 8185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 81986da77fdaf4c0237eafb9670f54eee20b08635bfEli FriedmanQualType ASTContext::getFunctionType(QualType ResultTy, const QualType *ArgArray, 8205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs, bool isVariadic) { 8215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 8225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 8235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 8245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic); 8255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeProto *FTP = 8285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos)) 8295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 8335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 8345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 8365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 8385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 8405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 8415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 8425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 843f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 845f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isVariadic); 8485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *NewIP = 8515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos); 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(NewIP == 0 && "Shouldn't be in the map!"); 8535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FunctionTypeProto objects are not allocated with new because they have a 8565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // variable size array (for parameter types) at the end of them. 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *FTP = 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer (FunctionTypeProto*)malloc(sizeof(FunctionTypeProto) + 859942cfd37297528918616d06cd6e4e8bd6e4915a2Chris Lattner NumArgs*sizeof(QualType)); 8605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer new (FTP) FunctionTypeProto(ResultTy, ArgArray, NumArgs, isVariadic, 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Canonical); 8625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 8635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.InsertNode(FTP, InsertPos); 8645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 8655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8672ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 8682ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 8692ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas GregorQualType ASTContext::getTypeDeclType(TypeDecl *Decl) { 8702ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 8712ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 8722ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (TypedefDecl *Typedef = dyn_cast_or_null<TypedefDecl>(Decl)) 8732ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 8742ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor else if (ObjCInterfaceDecl *ObjCInterface 8752ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor = dyn_cast_or_null<ObjCInterfaceDecl>(Decl)) 8762ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 87749aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 87849aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis if (CXXRecordDecl *CXXRecord = dyn_cast_or_null<CXXRecordDecl>(Decl)) 87949aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis Decl->TypeForDecl = new CXXRecordType(CXXRecord); 88049aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else if (RecordDecl *Record = dyn_cast_or_null<RecordDecl>(Decl)) 8812ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor Decl->TypeForDecl = new RecordType(Record); 88249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else if (EnumDecl *Enum = dyn_cast_or_null<EnumDecl>(Decl)) 8832ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor Decl->TypeForDecl = new EnumType(Enum); 88449aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 8852ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 88649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 88749aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis Types.push_back(Decl->TypeForDecl); 88849aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 8892ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 8902ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 8915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 8955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 896f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 897c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Decl->TypeForDecl = new TypedefType(Type::TypeName, Decl, Canonical); 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 8995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 9005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 902a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 9033536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 904a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCInterfaceType(ObjCInterfaceDecl *Decl) { 9053536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 9063536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 907a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->TypeForDecl = new ObjCInterfaceType(Type::ObjCInterface, Decl); 9083536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 9093536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 9103536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 9113536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 91288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 91388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 91488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 91588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 91688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner return strcmp(LHS->getName(), RHS->getName()) < 0; 91788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 91888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 91988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 92088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 92188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 92288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 92388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 92488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 92588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 92688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 92788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 92888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 92988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 93088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 93188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 932065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 933065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 934a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 935a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 93688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 93788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 93888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 9394b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 940b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 9414b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 9424b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 943a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 944a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 9454b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 9464b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 9474b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 948a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 949a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek new ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 9504b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 951a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 9524b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 9534b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 9544b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 95588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 95688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 95762f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 958c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 95988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 96088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 96188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 962c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 963a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 964c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 965c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 966a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 96762f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 968c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 969c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 970c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 97162f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdType *QType = new ObjCQualifiedIdType(Protocols, NumProtocols); 972c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 973a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 974c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 975c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 976c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 9779752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfExpr - Unlike many "get<Type>" functions, we can't unique 9789752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfExpr AST's (since expression's are never shared). For example, 9799752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 9809752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 9819752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 9828d1a3b8ca1e5fcc4567b5a6f51d82be2e460de1cSteve NaroffQualType ASTContext::getTypeOfExpr(Expr *tofExpr) { 983f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 9849752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfExpr *toe = new TypeOfExpr(tofExpr, Canonical); 9859752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 9869752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 987d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 988d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 9899752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 9909752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 9919752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 9929752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 9939752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 994d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 995f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 9969752f25748d954df99087d741ea35db37ff16beaSteve Naroff TypeOfType *tot = new TypeOfType(tofType, Canonical); 9979752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 9989752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 999d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1000d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 10015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 10025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 10035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1004d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 10052ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 10065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 10115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 10125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // On Darwin, size_t is defined as a "long unsigned int". 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: should derive from "Target". 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return UnsignedLongTy; 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 101755f4b02bc71e7347986c6a5249bef635aac1901aArgyrios Kyrtzidis/// getWCharType - Return the unique type for "wchar_t" (C99 7.17), the 1018fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// width of characters in wide strings, The value is target dependent and 1019fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// needs to agree with the definition in <stddef.h>. 102055f4b02bc71e7347986c6a5249bef635aac1901aArgyrios KyrtzidisQualType ASTContext::getWCharType() const { 102164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (LangOpts.CPlusPlus) 102264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 102364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1024fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman // On Darwin, wchar_t is defined as a "int". 1025fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman // FIXME: should derive from "Target". 1026fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman return IntTy; 1027fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman} 1028fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman 102964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 103064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 103164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 103264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 103364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 103464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 103564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 103664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 103764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 103864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 103964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 104064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 104164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 104264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 10438b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 10448b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 10458b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 10468b9023ba35a86838789e2c9034a6128728c547aaChris Lattner // On Darwin, ptrdiff_t is defined as a "int". This seems like a bug... 10478b9023ba35a86838789e2c9034a6128728c547aaChris Lattner // FIXME: should derive from "Target". 10488b9023ba35a86838789e2c9034a6128728c547aaChris Lattner return IntTy; 10498b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 10508b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1051e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1052e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1053e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1054e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 105577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 105677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 105777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 105877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 105977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 106077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 106177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 106277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1063c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1064c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1065c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1066c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1067c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1068c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1069c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1070c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1071c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1072c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1073c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1074c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1075c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1076c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1077c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1078c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1079c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1080c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1081c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1082c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1083c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1084c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1085c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1086c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // FIXME: What is the ownership of size expressions in VLAs? 1087c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1088c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1089c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1090c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1091c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1092c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1093c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1094c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1095c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1096c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1097c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1098c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1099c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1100c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1101c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1102c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1103c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1104c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1105c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Make sure to look through type qualifiers (like ASQuals) for the negative 1106c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1107c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1108c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1109c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1110c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1111c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1112c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1113c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1114c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1115c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1116c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1117c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1118c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1119c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1120c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1121c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1122c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Rip through ASQualType's and typedefs to get to a concrete type. 1123c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1124c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ASQualType *ASQT = dyn_cast<ASQualType>(Ty)) { 1125c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner AddrSpace = ASQT->getAddressSpace(); 1126c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = ASQT->getBaseType(); 1127c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1128c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1129c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1130c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1131c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1132c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1133c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1134c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1135c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1136c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1137c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1138c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1139c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1140c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1141c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1142c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1143c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1144c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1145c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1146c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1147c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getASQualType(NewEltTy, AddrSpace); 1148c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1149c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1150c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1151c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1152c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1153c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1154c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1155c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1156c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1157c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1158c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1159c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // FIXME: What is the ownership of size expressions in VLAs? 1160c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1161c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1162c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1163c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 116477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 116577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 116677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1167e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1168e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1169e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1170e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1171e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1172e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1173e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1174c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1175c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1176c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1177c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1178c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1179c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1180e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1181c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1182e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1183e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1184c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1185e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1186e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 11885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1189a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1190ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 11915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1192a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1193ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1194a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 11955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1201716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1202716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1203716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1204716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 12051361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 12061361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 12071361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 12081361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 12091361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1210716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1211f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1212f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1213f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1214f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1215f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 12161361b11066239ea15764a2a844405352d87296b3Chris Lattner 12171361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 12181361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 12191361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 12201361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 12211361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 12221361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 12235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 12277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 12287cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 12297cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1230a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1231a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1232a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1233a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1234a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1235fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1236a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1237fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1238fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 12395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1241f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1242f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1243f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1244f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattnerstatic unsigned getIntegerRank(Type *T) { 1245f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1246f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (isa<EnumType>(T)) 1247f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner return 4; 1248f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 1249f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 12507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 12517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 12527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 12537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 12547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 12557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 12567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 12577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 2; 12587cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 12597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 12607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 3; 12617cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 12627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 12637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 4; 12647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 12657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 12667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 5; 12677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 12687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 12697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 6; 1270f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1271f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1272f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 12737cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 12747cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 12757cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 12767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1277f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1278f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 12797cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 12805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1281f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1282f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 12857cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 12865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12877cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 12887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 12897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 12907cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 12917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 12927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 12937cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 12947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 12957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 12967cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 12977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 12987cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 12997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 13007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 13017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 13027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 13037cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 13047cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 13057cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 13067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 13075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 13097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 13107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 13117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 131371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 131471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 131571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 131671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 13176c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 131839ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1319c63e660882ff93841fa234d70ef6757038302b92Chris Lattner &Idents.get("NSConstantString"), 0); 1320f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 132171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 132271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 132371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 1324f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 1325f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 132671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 1327f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 132871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 1329f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 133071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // Create fields 1331f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldDecl *FieldDecls[4]; 133271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 1333f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson for (unsigned i = 0; i < 4; ++i) 1334b048c9835969c4f7fe06264748be18ed4b442116Chris Lattner FieldDecls[i] = FieldDecl::Create(*this, SourceLocation(), 0, 13358e25d8681822d8094bfeb97b2239363552548171Chris Lattner FieldTypes[i]); 133671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 133771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson CFConstantStringTypeDecl->defineBody(FieldDecls, 4); 133871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 133971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 134071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 13418467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 1342b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1343e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 1344e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 13452d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 1346e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 13472d99833e8c956775f2183601cd120b65b569c867Chris Lattner return !strcmp(TT->getDecl()->getName(), "BOOL"); 134885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 134985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 135085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 135185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1352a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 135333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 1354a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 135598be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 135633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 135733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 135833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 135998be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 136033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 136133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 136298be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 136398be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 136433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 136533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1366a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 136733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 1368a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForMethodDecl(ObjCMethodDecl *Decl, 136933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian std::string& S) 137033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian{ 1371ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 1372a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 137333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 13747d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(Decl->getResultType(), S, EncodingRecordTypes); 137533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 137633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 137733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 137833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 137998be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 138033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 138133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 138233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 138333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int NumOfParams = Decl->getNumParams(); 138433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 138533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1386a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek int sz = getObjCEncodingTypeSize (PType); 1387a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 138833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 138933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 139033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 139133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 139233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 139333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 139433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 139533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 139633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 139733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1398ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 139933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 1400a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier( 1401a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Decl->getParamDecl(i)->getObjCDeclQualifier(), S); 14027d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(PType, S, EncodingRecordTypes); 140333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 1404a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 140533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 140633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 140733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 14087d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 1409c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner llvm::SmallVector<const RecordType *, 8> &ERType) const { 1410e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // FIXME: This currently doesn't encode: 1411e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // @ An object (whether statically typed or typed id) 1412e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // # A class object (Class) 1413e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // : A method selector (SEL) 1414e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // {name=type...} A structure 1415e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // (name=type...) A union 1416e8c49533521c40643653f943d47229e62d277f88Anders Carlsson // bnum A bit field of num bits 1417e8c49533521c40643653f943d47229e62d277f88Anders Carlsson 1418e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 141985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson char encoding; 142085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson switch (BT->getKind()) { 14217176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner default: assert(0 && "Unhandled builtin type kind"); 14227176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Void: encoding = 'v'; break; 14237176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Bool: encoding = 'B'; break; 142485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_U: 14257176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UChar: encoding = 'C'; break; 14267176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UShort: encoding = 'S'; break; 14277176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::UInt: encoding = 'I'; break; 14287176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULong: encoding = 'L'; break; 14297176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::ULongLong: encoding = 'Q'; break; 143085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson case BuiltinType::Char_S: 14317176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::SChar: encoding = 'c'; break; 14327176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Short: encoding = 's'; break; 14337176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Int: encoding = 'i'; break; 14347176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Long: encoding = 'l'; break; 14357176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongLong: encoding = 'q'; break; 14367176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Float: encoding = 'f'; break; 14377176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::Double: encoding = 'd'; break; 14387176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case BuiltinType::LongDouble: encoding = 'd'; break; 143985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 144085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 144185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += encoding; 1442c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1443a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (T->isObjCQualifiedIdType()) { 1444c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // Treat id<P...> same as 'id' for encoding purposes. 14457d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian return getObjCEncodingForType(getObjCIdType(), S, ERType); 1446c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1447c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1448c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 144985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 1450a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (isObjCIdType(PointeeTy) || PointeeTy->isObjCInterfaceType()) { 1451c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 1452c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 1453a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCClassType(PointeeTy)) { 14548baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 14558baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1456a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 14578baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 14588baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 1459c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 146085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 146185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 146285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 146385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 1464e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 146585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 146685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 146785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 146885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 146985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 147085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 14717d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(PT->getPointeeType(), S, ERType); 1472c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 1473c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 1474c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 147585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '['; 147685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 147785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 147885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 147985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson else 148085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson assert(0 && "Unhandled array type!"); 148185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 14827d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(AT->getElementType(), S, ERType); 148385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += ']'; 1484c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 1485c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 14866de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 14876de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian RecordDecl *RDecl= RTy->getDecl(); 1488faf37e7d3646c4f473e7a565a9a2f8baed62dbe6Steve Naroff // This mimics the behavior in gcc's encode_aggregate_within(). 1489faf37e7d3646c4f473e7a565a9a2f8baed62dbe6Steve Naroff // The idea is to only inline structure definitions for top level pointers 1490faf37e7d3646c4f473e7a565a9a2f8baed62dbe6Steve Naroff // to structures and embedded structures. 1491faf37e7d3646c4f473e7a565a9a2f8baed62dbe6Steve Naroff bool inlining = (S.size() == 1 && S[0] == '^' || 1492faf37e7d3646c4f473e7a565a9a2f8baed62dbe6Steve Naroff S.size() > 1 && S[S.size()-1] != '^'); 14936de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += '{'; 14946de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += RDecl->getName(); 14957d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian bool found = false; 14967d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian for (unsigned i = 0, e = ERType.size(); i != e; ++i) 14977d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian if (ERType[i] == RTy) { 14987d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian found = true; 14997d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian break; 15007d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 1501faf37e7d3646c4f473e7a565a9a2f8baed62dbe6Steve Naroff if (!found && inlining) { 15027d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian ERType.push_back(RTy); 15037d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 15047d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian for (int i = 0; i < RDecl->getNumMembers(); i++) { 15057d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian FieldDecl *field = RDecl->getMember(i); 15067d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian getObjCEncodingForType(field->getType(), S, ERType); 15077d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 15087d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian assert(ERType.back() == RTy && "Record Type stack mismatch."); 15097d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian ERType.pop_back(); 15106de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 15116de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian S += '}'; 15125e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 15135e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff S += 'i'; 151485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } else 1515f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 151685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 151785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1518a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 1519ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 1520ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 1521ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 1522ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 1523ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 1524ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 1525ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 1526ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 1527ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 1528ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 1529ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 1530ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 1531ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 1532ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 1533ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 1534b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 1535b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 1536b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 1537b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1538b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 1539b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 1540b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1541a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCIdType(TypedefDecl *TD) 15427e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 1543a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCIdType.isNull() && "'id' type already set!"); 15447e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1545a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = getTypedefType(TD); 15467e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 15477e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 15487e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 15497e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(ptr && "'id' incorrectly typed"); 15507e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 15517e219e47de26346885d667131977bd9ca2d7662aSteve Naroff assert(rec && "'id' incorrectly typed"); 15527e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 15537e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 15547e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 1555a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCSelType(TypedefDecl *TD) 1556b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 1557a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCSelType.isNull() && "'SEL' type already set!"); 1558b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1559a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCSelType = getTypedefType(TD); 1560b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1561b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 1562b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 1563b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(ptr && "'SEL' incorrectly typed"); 1564b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 1565b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian assert(rec && "'SEL' incorrectly typed"); 1566b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 1567b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 1568b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 1569a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 1570390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 1571a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCProtoType.isNull() && "'Protocol' type already set!"); 1572a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 1573390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 1574390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 1575a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCClassType(TypedefDecl *TD) 15768baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 1577a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCClassType.isNull() && "'Class' type already set!"); 15788baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 1579a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = getTypedefType(TD); 15808baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 15818baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 15828baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 15838baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 15848baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 15858baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 15868baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 15878baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 15888baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 1589a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 1590a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 15912198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 15922198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1593a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 15942198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 15952198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 1596b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1597b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 1598b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 1599b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 1600b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1601b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 1602b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 1603b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 1604b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 1605b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 1606b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty->isObjCQualifiedIdType()) 1607b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 1608b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1609b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (!Ty->isPointerType()) 1610b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 1611b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1612b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // Check to see if this is 'id' or 'Class', both of which are typedefs for 1613b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // pointer types. This looks for the typedef specifically, not for the 1614b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // underlying type. 1615b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty == getObjCIdType() || Ty == getObjCClassType()) 1616b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 1617b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 1618b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 1619b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return Ty->getAsPointerType()->getPointeeType()->isObjCInterfaceType(); 1620b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 1621b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 16226ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 16236ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 16246ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 1625770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 16266ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 16276ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 16286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 16296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 16306ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 16316ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 16326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 16336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 16346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 16353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 16366ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 16376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 16386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 16393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 16403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 16416ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 16426ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 16436ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 16446ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 16456ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 16466ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 16476ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 16486ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 16496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 16506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 16516ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 16526ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 16536ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 16546ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 16556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 16566ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 16576ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 16586ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 16596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(); 16606ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPE = LHSP->qual_end(); 16616ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(); 16626ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPE = RHSP->qual_end(); 16636ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 16646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // All protocols in LHS must have a presence in RHS. Since the protocol lists 16656ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // are both sorted alphabetically and have no duplicates, we can scan RHS and 16666ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // LHS in a single parallel scan until we run out of elements in LHS. 16676ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHSPI != LHSPE && "Empty LHS protocol list?"); 16686ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *LHSProto = *LHSPI; 16696ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 16706ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner while (RHSPI != RHSPE) { 16716ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *RHSProto = *RHSPI++; 16726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If the RHS has a protocol that the LHS doesn't, ignore it. 16736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (RHSProto != LHSProto) 16746ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner continue; 16756ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 16766ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Otherwise, the RHS does have this element. 16776ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ++LHSPI; 16786ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (LHSPI == LHSPE) 16796ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // All protocols in LHS exist in RHS. 16806ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 16816ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner LHSProto = *LHSPI; 16826ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner } 16836ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 16846ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If we got here, we didn't find one of the LHS's protocols in the RHS list. 16856ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 16866ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 16876ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 1688ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 1689ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 1690ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 1691ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 16923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 16933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 16943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 16953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 16963d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 16973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 16983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 16993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 17003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 17013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 17023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 17033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 17043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 17053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 17063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 17073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) allLTypes = false; 17083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) allRTypes = false; 17093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 17103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 17113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 17123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 17133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 17143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 17153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 17163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 17173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 17183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 17193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 17203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 17213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 17223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 17233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 17243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 17253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 17263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 17273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 17283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 17293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 17303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (getCanonicalType(argtype) != getCanonicalType(largtype)) allLTypes = false; 17313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (getCanonicalType(argtype) != getCanonicalType(rargtype)) allRTypes = false; 17323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 17333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 17343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 17353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 17363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman lproto->isVariadic()); 17373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 17383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 17393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 17403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 17413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 17423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *proto = lproto ? lproto : rproto; 17433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 17443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 17453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 17463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 17473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 17483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 17493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 17503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 17513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 17523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 17533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 17543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 17553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 17563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 17573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 17583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 17593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 17603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 17613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman proto->getNumArgs(), lproto->isVariadic()); 17623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 17633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 17643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 17653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 17663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionTypeNoProto(retType); 17673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 17683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 17693d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 177043d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 177143d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 177243d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 177343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // expression is an lvalue. 17743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 17753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 17763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 1777c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 17783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 1779c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 17803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 17813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 17823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 17833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 1784f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 17853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 17863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 17873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 17883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 17893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers() || 17903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman LHSCan.getAddressSpace() != RHSCan.getAddressSpace()) 17913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 17923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 17933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 17943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 1795f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 17961adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 17971adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 17981adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 17991adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 18004c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 18014c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 1802a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 1803a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 1804a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 1805a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 1806a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 1807213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 1808213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 1809213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 1810ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1811b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 1812b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 1813b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 18143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 1815a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner // If the canonical type classes don't match. 18161adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass != RHSClass) { 181797341620065b89f5197b846be94c4cfad5df2af4Steve Naroff // ID is compatible with all qualified id types. 18183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHS->isObjCQualifiedIdType()) { 181997341620065b89f5197b846be94c4cfad5df2af4Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) 18203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCIdType(PT->getPointeeType())) 18213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 182297341620065b89f5197b846be94c4cfad5df2af4Steve Naroff } 18233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RHS->isObjCQualifiedIdType()) { 182497341620065b89f5197b846be94c4cfad5df2af4Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) 18253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCIdType(PT->getPointeeType())) 18263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 18273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 18283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 18291adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 18301adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 18313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 18323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 18333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 1834bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 18353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 18363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 18373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 1838bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 18391adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 18403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 1841ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 18423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 18434a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 18441adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 18451adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 18463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 18473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 18483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 18493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 18503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 18513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 18523bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) return LHS; 18533bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) return RHS; 18543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 18553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 18561adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 18573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 18583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 18593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 18603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 18613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 18623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 18633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 18643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 18653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 18663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 18673bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 18683bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 18693bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 18703bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 18713bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 18723bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 18733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 18743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 18753bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 18763bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 18773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 18783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 18793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 18803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 18813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 18823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 18833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 18843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 18853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 18863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 18873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 18883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 18893bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 18903bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 18913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(), 0); 18923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 18931adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 18943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 18953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman case Type::Tagged: 18963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 18973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 18983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCIdType(LHS) && isObjCClassType(RHS)) return LHS; 18993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCClassType(LHS) && isObjCIdType(RHS)) return LHS; 19003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 19013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 19021adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 19033cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 19043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 19053cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 19063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 19073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 19081adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ObjCInterface: 19093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 19103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Distinct ObjC interfaces are not compatible; see canAssignObjCInterfaces 19113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // for checking assignment/comparison safety 19123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 19133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 19141adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner default: 19151adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner assert(0 && "unexpected type"); 19163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 1917ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 1918ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 19197192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 19205426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 1921ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 1922ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 1923ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 1924ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 1925ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 1926ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman // At the moment, only bool has padding bits 1927ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 1928ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 1929ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 1930ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 1931ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 1932ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 1933ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 1934ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 1935ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 1936ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 1937ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 1938ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 1939ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 1940ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 1941ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 1942ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 1943ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 1944ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 1945ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 1946ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 1947ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 1948ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 1949ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 1950ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 1951ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 1952ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 1953ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 1954ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 1955ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 19565426bf6456a5aeac416a9150de157904d101c819Chris Lattner// Serialization Support 19575426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 19585426bf6456a5aeac416a9150de157904d101c819Chris Lattner 19597192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek/// Emit - Serialize an ASTContext object to Bitcode. 19607192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenekvoid ASTContext::Emit(llvm::Serializer& S) const { 1961e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek S.Emit(LangOpts); 19625451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(SourceMgr); 19635451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Target); 19645451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Idents); 19655451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Selectors); 19667192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 1967fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // Emit the size of the type vector so that we can reserve that size 1968fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // when we reconstitute the ASTContext object. 1969a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek S.EmitInt(Types.size()); 1970a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 197103ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (std::vector<Type*>::const_iterator I=Types.begin(), E=Types.end(); 197203ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek I!=E;++I) 197303ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek (*I)->Emit(S); 1974a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 1975ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis S.EmitOwnedPtr(TUDecl); 1976ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 1977a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl); 19787192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek} 19797192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 19800f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted KremenekASTContext* ASTContext::Create(llvm::Deserializer& D) { 1981e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 1982e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek // Read the language options. 1983e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LangOptions LOpts; 1984e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LOpts.Read(D); 1985e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 1986fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SourceManager &SM = D.ReadRef<SourceManager>(); 1987fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek TargetInfo &t = D.ReadRef<TargetInfo>(); 1988fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek IdentifierTable &idents = D.ReadRef<IdentifierTable>(); 1989fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels = D.ReadRef<SelectorTable>(); 19900ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 1991fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek unsigned size_reserve = D.ReadInt(); 1992fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 1993e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek ASTContext* A = new ASTContext(LOpts, SM, t, idents, sels, size_reserve); 1994fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 199503ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (unsigned i = 0; i < size_reserve; ++i) 199603ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek Type::Create(*A,i,D); 19970ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 1998ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis A->TUDecl = cast<TranslationUnitDecl>(D.ReadOwnedPtr<Decl>(*A)); 1999ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2000a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: A->CFConstantStringTypeDecl = D.ReadOwnedPtr<RecordDecl>(); 2001fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 2002fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek return A; 2003fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek} 2004