ASTContext.cpp revision aaba5e346dffdbad5d1c42765a89e4a7afb0da67
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ASTContext.cpp - Context to hold long-lived AST nodes ------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the ASTContext interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 1549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis#include "clang/AST/DeclCXX.h" 16980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 17aaba5e346dffdbad5d1c42765a89e4a7afb0da67Douglas Gregor#include "clang/AST/DeclTemplate.h" 18e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 19e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/RecordLayout.h" 205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 2185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 227192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Serialize.h" 237192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Deserialize.h" 246fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.h" 2585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3261710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 3361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner TargetInfo &t, 34e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 35c0ac4923f08b25ae973a8ee7942cf3eb89da57b7Steve Naroff bool FreeMem, unsigned size_reserve) : 36bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson CFConstantStringTypeDecl(0), ObjCFastEnumerationStateTypeDecl(0), 37c0ac4923f08b25ae973a8ee7942cf3eb89da57b7Steve Naroff SourceMgr(SM), LangOpts(LOpts), FreeMemory(FreeMem), Target(t), 382e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor Idents(idents), Selectors(sels) 39e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar{ 40e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 41e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar InitBuiltinTypes(); 42e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar BuiltinInfo.InitializeBuiltins(idents, Target); 43e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 44e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 45e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 494b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 52b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 53b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 54b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 55b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 56b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 57b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 58b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 59b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 60b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 61b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 62b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 63b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const ObjCInterfaceDecl*, const ASTRecordLayout*>::iterator 64b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTObjCInterfaces.begin(), E = ASTObjCInterfaces.end(); 65b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 66b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 67b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 68b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 69b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 72b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const ObjCInterfaceDecl*, const RecordDecl*>::iterator 73b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordForInterface.begin(), E = ASTRecordForInterface.end(); 74b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 75b74668edbc119880eb0a7e563432314432cb775dNuno Lopes RecordDecl *R = const_cast<RecordDecl*>((I++)->second); 76b74668edbc119880eb0a7e563432314432cb775dNuno Lopes R->Destroy(*this); 77b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 78b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 79b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 80b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumBuiltin = 0, NumPointer = 0, NumArray = 0, NumFunctionP = 0; 87248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar unsigned NumVector = 0, NumComplex = 0, NumBlockPointer = 0; 885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumFunctionNP = 0, NumTypeName = 0, NumTagged = 0, NumReference = 0; 89f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl unsigned NumMemberPointer = 0; 905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumTagStruct = 0, NumTagUnion = 0, NumTagEnum = 0, NumTagClass = 0; 92a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCInterfaces = 0, NumObjCQualifiedInterfaces = 0; 93a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCQualifiedIds = 0; 946cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff unsigned NumTypeOfTypes = 0, NumTypeOfExprs = 0; 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isa<BuiltinType>(T)) 995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumBuiltin; 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<PointerType>(T)) 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumPointer; 102248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar else if (isa<BlockPointerType>(T)) 103248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar ++NumBlockPointer; 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ReferenceType>(T)) 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumReference; 106f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl else if (isa<MemberPointerType>(T)) 107f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl ++NumMemberPointer; 1086d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<ComplexType>(T)) 1096d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumComplex; 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ArrayType>(T)) 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumArray; 1126d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<VectorType>(T)) 1136d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumVector; 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeNoProto>(T)) 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionNP; 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeProto>(T)) 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionP; 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<TypedefType>(T)) 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTypeName; 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (TagType *TT = dyn_cast<TagType>(T)) { 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTagged; 12239ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis switch (TT->getDecl()->getTagKind()) { 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown tagged type!"); 12439ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_struct: ++NumTagStruct; break; 12539ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_union: ++NumTagUnion; break; 12639ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_class: ++NumTagClass; break; 12739ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_enum: ++NumTagEnum; break; 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 129a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isa<ObjCInterfaceType>(T)) 130a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCInterfaces; 131a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedInterfaceType>(T)) 132a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedInterfaces; 133a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedIdType>(T)) 134a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedIds; 1356cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfType>(T)) 1366cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfTypes; 1376cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfExpr>(T)) 1386cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfExprs; 1393f128ad2691d299b96663da85a9e069c4081ea7cSteve Naroff else { 140beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner QualType(T, 0).dump(); 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(0 && "Unknown type!"); 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d builtin types\n", NumBuiltin); 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d pointer types\n", NumPointer); 147248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar fprintf(stderr, " %d block pointer types\n", NumBlockPointer); 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d reference types\n", NumReference); 149f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl fprintf(stderr, " %d member pointer types\n", NumMemberPointer); 1506d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d complex types\n", NumComplex); 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d array types\n", NumArray); 1526d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d vector types\n", NumVector); 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with proto\n", NumFunctionP); 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with no proto\n", NumFunctionNP); 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d typename (typedef) types\n", NumTypeName); 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d tagged types\n", NumTagged); 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d struct types\n", NumTagStruct); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d union types\n", NumTagUnion); 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d class types\n", NumTagClass); 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d enum types\n", NumTagEnum); 161a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek fprintf(stderr, " %d interface types\n", NumObjCInterfaces); 162beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner fprintf(stderr, " %d protocol qualified interface types\n", 163a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedInterfaces); 164c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian fprintf(stderr, " %d protocol qualified id types\n", 165a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedIds); 1666cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof types\n", NumTypeOfTypes); 1676cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof exprs\n", NumTypeOfExprs); 1686cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "Total bytes = %d\n", int(NumBuiltin*sizeof(BuiltinType)+ 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumPointer*sizeof(PointerType)+NumArray*sizeof(ArrayType)+ 1716d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner NumComplex*sizeof(ComplexType)+NumVector*sizeof(VectorType)+ 172f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl NumMemberPointer*sizeof(MemberPointerType)+ 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionP*sizeof(FunctionTypeProto)+ 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionNP*sizeof(FunctionTypeNoProto)+ 1756cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeName*sizeof(TypedefType)+NumTagged*sizeof(TagType)+ 1766cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeOfTypes*sizeof(TypeOfType)+NumTypeOfExprs*sizeof(TypeOfExpr))); 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 181f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Types.push_back((R = QualType(new (*this,8) BuiltinType(K),0)).getTypePtr()); 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinTypes() { 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(VoidTy.isNull() && "Context reinitialized?"); 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p19. 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(VoidTy, BuiltinType::Void); 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p2. 1915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(BoolTy, BuiltinType::Bool); 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p3. 19398be4943e8dc4f3905629a7102668960873cf863Chris Lattner if (Target.isCharSigned()) 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_S); 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(CharTy, BuiltinType::Char_U); 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p4. 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(ShortTy, BuiltinType::Short); 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(IntTy, BuiltinType::Int); 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongTy, BuiltinType::Long); 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongLongTy, BuiltinType::LongLong); 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p6. 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 2085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 2105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p10. 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(FloatTy, BuiltinType::Float); 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(DoubleTy, BuiltinType::Double); 2145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 21564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 21664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // C++ 3.9.1p5 21764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis InitBuiltinType(WCharTy, BuiltinType::WChar); 21864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 2198e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor // Placeholder type for functions. 220898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(OverloadTy, BuiltinType::Overload); 221898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 222898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Placeholder type for type-dependent expressions whose type is 223898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // completely unknown. No code should ever check a type against 224898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // DependentTy and users should never see it; however, it is here to 225898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // help diagnose failures to properly check for type-dependent 226898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // expressions. 227898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor InitBuiltinType(DependentTy, BuiltinType::Dependent); 2288e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.2.5p11. 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatComplexTy = getComplexType(FloatTy); 2315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DoubleComplexTy = getComplexType(DoubleTy); 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LongDoubleComplexTy = getComplexType(LongDoubleTy); 2338e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor 2347e219e47de26346885d667131977bd9ca2d7662aSteve Naroff BuiltinVaListType = QualType(); 235a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = QualType(); 2367e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = 0; 237a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = QualType(); 2388baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = 0; 2398baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 240a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = QualType(); 24133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 24233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // void * type 24333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian VoidPtrTy = getPointerType(VoidTy); 2445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 246464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 247464175bba1318bef7905122e9fda20cff926df78Chris Lattner// Type Sizing and Analysis 248464175bba1318bef7905122e9fda20cff926df78Chris Lattner//===----------------------------------------------------------------------===// 249a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 250b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 251b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner/// scalar floating point type. 252b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattnerconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 253b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const BuiltinType *BT = T->getAsBuiltinType(); 254b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner assert(BT && "Not a floating point type!"); 255b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner switch (BT->getKind()) { 256b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner default: assert(0 && "Not a floating point type!"); 257b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Float: return Target.getFloatFormat(); 258b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::Double: return Target.getDoubleFormat(); 259b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 260b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner } 261b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner} 262b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 263af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// getDeclAlign - Return a conservative estimate of the alignment of the 264af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// specified decl. Note that bitfields do not have a valid alignment, so 265af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner/// this method will assert on them. 266af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattnerunsigned ASTContext::getDeclAlign(const Decl *D) { 267af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner // FIXME: If attribute(align) is specified on the decl, round up to it. 268af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner 269af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 270af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner QualType T = VD->getType(); 271af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner // Incomplete or function types default to 1. 272af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner if (T->isIncompleteType() || T->isFunctionType()) 273af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner return 1; 274af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner 275af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 276af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner T = cast<ArrayType>(T)->getElementType(); 277af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner 278af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner return getTypeAlign(T); 279af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner } 280af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner 281af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner return 1; 282af707ab8fbb9451e8febb8d766f6c043628125c4Chris Lattner} 283b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 284a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 285a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 286d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 2871d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 288f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner T = getCanonicalType(T); 2899e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner uint64_t Width; 290d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner unsigned Align; 291a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 292030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::TypeName: assert(0 && "Not a canonical type!"); 2935d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 2945d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 295692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: 296b1c2df99ba67ec6c29ac7dceaa4eb2c8cda4a017Chris Lattner assert(0 && "Incomplete types have no size!"); 297fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 298fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff assert(0 && "VLAs not implemented yet!"); 299898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor case Type::DependentSizedArray: 300898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert(0 && "Dependently-sized arrays don't have a known size"); 301fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 3021d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 303030d8846c7e520330007087e949f621989876e3aChris Lattner 30498be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 3059e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 306030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 307030d8846c7e520330007087e949f621989876e3aChris Lattner break; 3085c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 309213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 310030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 311030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 31298be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 3139e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 3144bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 3156fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 3166fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 3176fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // FIXME: this should probably be a target property. 3186fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman Align = 1 << llvm::Log2_32_Ceil(Align); 319030d8846c7e520330007087e949f621989876e3aChris Lattner break; 320030d8846c7e520330007087e949f621989876e3aChris Lattner } 3215d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 3229e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 323a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 324692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 325d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 326d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner assert(0 && "Incomplete types have no size!"); 3276f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 3289e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 3299e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 3306f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 331692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 332692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 333692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 3346f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 3359e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 3369e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 3376f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 33864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 33964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 34064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 34164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 342692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 3436f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 3449e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 3459e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 3466f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 347692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 3486f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 3499e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 3509e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 3516f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 352692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 3536f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 3549e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 3559e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 3566f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 357692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 3586f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 3599e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 3609e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 3616f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3626f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 3639e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 3649e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 3656f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3666f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 3675426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 3685426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 3696f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3706f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 3719e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 3729e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 3736f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 374a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 375bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 376ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb case Type::ASQual: 37798be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 37898be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 37998be4943e8dc4f3905629a7102668960873cf863Chris Lattner return getTypeInfo(QualType(cast<ASQualType>(T)->getBaseType(), 0)); 380a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek case Type::ObjCQualifiedId: 3815426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 382f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 3836f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 384485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 385485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 386485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 387485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 388485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 389485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 390f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 391f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 3925426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 393f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 394f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 395f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 396a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner case Type::Reference: 3977ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 3985d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 3996f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 4006f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 401bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 402f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 4038edef7c31d27fc9d5d163660702a8a7730a0d19fSebastian Redl // FIXME: This is not only platform- but also ABI-dependent. We follow 404f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // the GCC ABI, where pointers to data are one pointer large, pointers to 405f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // functions two pointers. But if we want to support ABI compatibility with 4068edef7c31d27fc9d5d163660702a8a7730a0d19fSebastian Redl // other compilers too, we need to delegate this completely to TargetInfo 4078edef7c31d27fc9d5d163660702a8a7730a0d19fSebastian Redl // or some ABI abstraction layer. 408f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 409f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl unsigned AS = Pointee.getAddressSpace(); 410f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width = Target.getPointerWidth(AS); 411f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 412f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 413f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Align = Target.getPointerAlign(AS); 414f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // GCC aligns at single pointer width. 415f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 4165d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 4175d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 4185d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 4195d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 42098be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 4219e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 4225d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 4235d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 4245d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 42544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 4261d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 42744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 42844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 42944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 43044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 43144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 4327176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case Type::Tagged: { 4331d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 4341d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 4351d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 4368389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 4378389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 4388389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 4398389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 4408389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 4411d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 4427176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 4437176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 4441d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 4457176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 4467176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 4477176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 448dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 449a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 4507176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 451d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 452464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 4539e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 454a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 455a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 45634ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 45734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// type for the current target in bits. This can be different than the ABI 45834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// alignment in cases where it is beneficial for performance to overalign 45934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner/// a data type. 46034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattnerunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 46134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner unsigned ABIAlign = getTypeAlign(T); 46234ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 46334ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner // Doubles should be naturally aligned if possible. 46434ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner if (const BuiltinType *BT = dyn_cast<BuiltinType>(getCanonicalType(T))) 46534ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner if (BT->getKind() == BuiltinType::Double) 46632b978c1e2da0555df367897840330e514168aecFariborz Jahanian return std::max(ABIAlign, 64U); 46734ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 46834ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner return ABIAlign; 46934ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner} 47034ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 47134ebde404dc17d89487b07e6daaf1b47d5dfee39Chris Lattner 4728b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 4738b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 4743b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar bool IsUnion, unsigned StructPacking, 4758b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 4763b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned FieldPacking = StructPacking; 4778b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 4788b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 4798b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 4803b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 4813b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: Should this override struct packing? Probably we want to 4823b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // take the minimum? 4833b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = FD->getAttr<PackedAttr>()) 4843b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldPacking = PA->getAlignment(); 4858b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4868b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 4878b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 4888b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 48932442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar FieldSize = 49032442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar BitWidthExpr->getIntegerConstantExprValue(Context).getZExtValue(); 4918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4928b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 4938b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 4948b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 4958b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4963b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 4973b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 4983b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. 4993b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 5003b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 5018b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 5023b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 5033b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, FieldPacking); 5048b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 5058b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 5068b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5078b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 5088b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 5098b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 5108b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 5118b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5128b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 5138b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 5148b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 5158b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5168389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 5178389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 5188b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 5198b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 5208b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 5218b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 522c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 5238b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 5248b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5258b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 5268b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 5278b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 5288b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 5298b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5308b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5313b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 5323b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 5333b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. Additionally, the packing alignment must be at least 5343b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a byte for non-bitfields. 5353b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // 5363b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 5373b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 5383b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 5393b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, std::max(8U, FieldPacking)); 5408b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 5418b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 5428b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5438b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 5448b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 5458b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5468b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5478b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 5488b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 5498b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5508b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 5518b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 5528b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 5538b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5548b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 5558b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5568b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5578b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 5588b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 5598b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 5608b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 561a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanianstatic void CollectObjCIvars(const ObjCInterfaceDecl *OI, 562a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian std::vector<FieldDecl*> &Fields) { 563a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian const ObjCInterfaceDecl *SuperClass = OI->getSuperClass(); 564a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (SuperClass) 565a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian CollectObjCIvars(SuperClass, Fields); 566a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 567a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 568a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian ObjCIvarDecl *IVDecl = (*I); 569a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 570a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 571a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 572a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 573a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 574a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// addRecordToClass - produces record info. for the class for its 575a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// ivars and all those inherited. 576a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// 577a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanianconst RecordDecl *ASTContext::addRecordToClass(const ObjCInterfaceDecl *D) 578a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian{ 579a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian const RecordDecl *&RD = ASTRecordForInterface[D]; 580a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (RD) 581a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian return RD; 582a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian std::vector<FieldDecl*> RecFields; 583a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian CollectObjCIvars(D, RecFields); 584a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecordDecl *NewRD = RecordDecl::Create(*this, TagDecl::TK_struct, 0, 585a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian D->getLocation(), 586a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian D->getIdentifier()); 587a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian /// FIXME! Can do collection of ivars and adding to the record while 588a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian /// doing it. 589a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (unsigned int i = 0; i != RecFields.size(); i++) { 590a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian FieldDecl *Field = FieldDecl::Create(*this, NewRD, 591a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecFields[i]->getLocation(), 592a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecFields[i]->getIdentifier(), 593a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecFields[i]->getType(), 5944afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor RecFields[i]->getBitWidth(), false); 595482b77d1cb4ca08391d1f749436f092a4cc24427Douglas Gregor NewRD->addDecl(Field); 596a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 597a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian NewRD->completeDefinition(*this); 598a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RD = NewRD; 599a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian return RD; 600a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 60144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 602efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian/// setFieldDecl - maps a field for the given Ivar reference node. 603efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian// 604efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanianvoid ASTContext::setFieldDecl(const ObjCInterfaceDecl *OI, 605efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian const ObjCIvarDecl *Ivar, 606efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian const ObjCIvarRefExpr *MRef) { 607efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian FieldDecl *FD = (const_cast<ObjCInterfaceDecl *>(OI))-> 608efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian lookupFieldDeclForIvar(*this, Ivar); 609efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian ASTFieldForIvarRef[MRef] = FD; 610efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian} 611efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian 61261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// getASTObjcInterfaceLayout - Get or compute information about the layout of 61361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// the specified Objective C, which indicates its size and ivar 61444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel/// position information. 61544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 61644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang PatelASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 61744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 61844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout *&Entry = ASTObjCInterfaces[D]; 61944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (Entry) return *Entry; 62044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 62144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 62244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 6236a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 6246a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned FieldCount = D->ivar_size(); 6256a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 6266a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel FieldCount++; 6276a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 6286a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 6296a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel uint64_t Size = SL.getSize(); 6306a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(Size, Alignment); 6316a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 63261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner // Super class is at the beginning of the layout. 63361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner NewEntry->SetFieldOffset(0, 0); 6346a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 6356a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(); 6366a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 6376a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 63844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Entry = NewEntry; 63944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 6403b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 6413b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 6423b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 64344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 64444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 64544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 64644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 64744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 64844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 64944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 65044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel for (ObjCInterfaceDecl::ivar_iterator IVI = D->ivar_begin(), 65144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel IVE = D->ivar_end(); IVI != IVE; ++IVI) { 65244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ObjCIvarDecl* Ivar = (*IVI); 6533b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar NewEntry->LayoutField(Ivar, i++, false, StructPacking, *this); 65444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 65544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 65644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 65744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 65844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 65944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 66044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 66144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 66288a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 663464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 664464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 66598be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 6664b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 6674b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 6684bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 669464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 67088a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 671464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 6724bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 67388a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 67488a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 67588a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 676464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 6774bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 678e267ff35b2f4e9d2b0d8bf24109d41cc7398b61bDouglas Gregor // FIXME: Avoid linear walk through the fields, if possible. 67944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->InitializeLayout(std::distance(D->field_begin(), D->field_end())); 68039ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 681464175bba1318bef7905122e9fda20cff926df78Chris Lattner 6823b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 6833b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 6843b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 6853b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 6864bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 6878b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 6888b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 6894bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 6904bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 6914bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 69244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor unsigned FieldIdx = 0; 693f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor for (RecordDecl::field_iterator Field = D->field_begin(), 694f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor FieldEnd = D->field_end(); 69544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; (void)++Field, ++FieldIdx) 69644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->LayoutField(*Field, FieldIdx, IsUnion, StructPacking, *this); 6974bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 6984bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 6994bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 7008b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->FinalizeLayout(); 7015d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 702464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 703464175bba1318bef7905122e9fda20cff926df78Chris Lattner 704a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 705a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 706a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 707a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 708ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher LambQualType ASTContext::getASQualType(QualType T, unsigned AddressSpace) { 709f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 710f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 711f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 712f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 713f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Type's cannot have multiple ASQuals, therefore we know we only have to deal 714f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // with CVR qualifiers from here on out. 715f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(CanT.getAddressSpace() == 0 && 716f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner "Type is already address space qualified"); 717f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 718f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Check if we've already instantiated an address space qual'd type of this 719f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // type. 720ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 721f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType::Profile(ID, T.getTypePtr(), AddressSpace); 722ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 723ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (ASQualType *ASQy = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 724ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb return QualType(ASQy, 0); 725ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 726ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 727ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 728ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 729ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (!T->isCanonical()) { 730f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getASQualType(CanT, AddressSpace); 731ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 732ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // Get the new insert position for the node we care about. 733ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualType *NewIP = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos); 734f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 735ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 736f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ASQualType *New = new (*this, 8) ASQualType(T.getTypePtr(), Canonical, 737f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff AddressSpace); 738ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualTypes.InsertNode(New, InsertPos); 739ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 740f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return QualType(New, T.getCVRQualifiers()); 741ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 742ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 743a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 7465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 7495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 7505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 7515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 7575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 760f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 764f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 766f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ComplexType *New = new (*this,8) ComplexType(T, Canonical); 7675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 7695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 7745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 7755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 7765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 7775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 7785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 7795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 7805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 7835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 7845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 7875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 789f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 7905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 793f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 795f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff PointerType *New = new (*this,8) PointerType(T, Canonical); 7965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 7985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8015618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 8025618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 8035618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 804296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 805296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 8065618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 8075618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 8085618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 8095618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 8105618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 8115618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 8125618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 8135618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 8145618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 815296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 8165618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 8175618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 8185618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 8195618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 8205618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 8215618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 8225618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 8235618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 824f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8255618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 826f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff BlockPointerType *New = new (*this,8) BlockPointerType(T, Canonical); 8275618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 8285618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 8295618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 8305618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 8315618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getReferenceType - Return the uniqued reference to the type for a reference 8335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// to the specified type. 8345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getReferenceType(QualType T) { 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 8365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 8375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 8385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ReferenceType *RT = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 8425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 8435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 8455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 848f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getReferenceType(getCanonicalType(T)); 8495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *NewIP = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 852f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 855f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ReferenceType *New = new (*this,8) ReferenceType(T, Canonical); 8565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceTypes.InsertNode(New, InsertPos); 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 8595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 861f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 862f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 863f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian RedlQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) 864f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl{ 865f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 866f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 867f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 868f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 869f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 870f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 871f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 872f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 873f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 874f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 875f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 876f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 877f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 878f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (!T->isCanonical()) { 879f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 880f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 881f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 882f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 883f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 884f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 885f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 886f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff MemberPointerType *New = new (*this,8) MemberPointerType(T, Cls, Canonical); 887f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 888f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 889f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 890f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 891f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 892fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 893fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 894fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 895c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff const llvm::APInt &ArySize, 896c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 897c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 899fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType::Profile(ID, EltTy, ArySize); 9005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9027192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 9037192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 9045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 9055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 910f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 911c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 9125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9137192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 9147192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 915f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 918566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ConstantArrayType *New = 919f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 9207192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 9215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 9225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 925bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 926bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 927c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 928c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 929c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 930c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 931c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 932c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 933566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek VariableArrayType *New = 934f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new(*this,8)VariableArrayType(EltTy,QualType(), NumElts, ASM, EltTypeQuals); 935c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 936c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 937c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 938c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 939c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 940c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 941898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 942898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 943898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// type. FIXME: We will need these to be uniqued, or at least 944898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// comparable, at some point. 945898574e7496ba8fd76290079d3a9d06954992734Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, Expr *NumElts, 946898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 947898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor unsigned EltTypeQuals) { 948898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 949898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 950898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 951898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Since we don't unique expressions, it isn't possible to unique 952898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependently-sized array types. 953898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 954566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek DependentSizedArrayType *New = 955f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) DependentSizedArrayType(EltTy, QualType(), NumElts, 956f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ASM, EltTypeQuals); 957898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 958898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayTypes.push_back(New); 959898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 960898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 961898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 962898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 963c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 964c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 965c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 966c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 967c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType::Profile(ID, EltTy); 968c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 969c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 970c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 971c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 972c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 973c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 974c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 975c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 976c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 977c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 978c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 979f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 9802bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 981c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 982c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 983c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 984c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 985f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9862bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 987c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 988f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff IncompleteArrayType *New = new (*this,8) IncompleteArrayType(EltTy, Canonical, 989566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ASM, EltTypeQuals); 990c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 991c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 992c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 993c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 994fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 995fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 99673322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 99773322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 99873322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 9995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 10005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1001f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 100273322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 10035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 10055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 100673322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 10125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 1015f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1019f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1021f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff VectorType *New = new (*this,8) VectorType(vecType, NumElts, Canonical); 10225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1027213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 102873322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1029213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 103073322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 103173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 1032f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1033213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 103473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 103573322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 103673322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 1037213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 103873322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 103973322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 104073322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 104173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 104273322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 104373322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 104473322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 104573322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 1046213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 104773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 104873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 104973322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1050f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 105173322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 1052f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff ExtVectorType *New = new (*this,8) ExtVectorType(vecType, NumElts, Canonical); 105373322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 105473322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 105573322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 105673322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 105773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 10585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionTypeNoProto - Return a K&R style C function type like 'int()'. 10595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getFunctionTypeNoProto(QualType ResultTy) { 10615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 10625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 10635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 10645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto::Profile(ID, ResultTy); 10655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeNoProto *FT = 10685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos)) 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 10705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 10725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 1073f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionTypeNoProto(getCanonicalType(ResultTy)); 10745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *NewIP = 10775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos); 1078f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1081f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff FunctionTypeNoProto *New =new(*this,8)FunctionTypeNoProto(ResultTy,Canonical); 10825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 108356cd7e3848c2d59ca2ec3b72d0834192edf0bcdfEli Friedman FunctionTypeNoProtos.InsertNode(New, InsertPos); 10845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 108961710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1090971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1091971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned TypeQuals) { 10925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 1095971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis FunctionTypeProto::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1096971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals); 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeProto *FTP = 11005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos)) 11015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 11025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 11045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 11055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 11065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 11075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 11085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 11105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 11115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 11145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1115f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 11165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1117f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 11185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 11197fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis isVariadic, TypeQuals); 11205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *NewIP = 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos); 1124f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1127566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek // FunctionTypeProto objects are allocated with extra bytes after them 1128566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek // for a variable size array (for parameter types) at the end of them. 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *FTP = 1130c0ac4923f08b25ae973a8ee7942cf3eb89da57b7Steve Naroff (FunctionTypeProto*)Allocate(sizeof(FunctionTypeProto) + 1131c0ac4923f08b25ae973a8ee7942cf3eb89da57b7Steve Naroff NumArgs*sizeof(QualType), 8); 11325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer new (FTP) FunctionTypeProto(ResultTy, ArgArray, NumArgs, isVariadic, 1133971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals, Canonical); 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.InsertNode(FTP, InsertPos); 11365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11392ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 11402ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 11414b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 11421e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 11432ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 11442ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 11451e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 11462ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 114772c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor else if (TemplateTypeParmDecl *TP = dyn_cast<TemplateTypeParmDecl>(Decl)) 114872c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor return getTemplateTypeParmType(TP); 11491e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 11502ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 115149aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 11521e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (CXXRecordDecl *CXXRecord = dyn_cast<CXXRecordDecl>(Decl)) { 1153566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1154566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1155f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1156f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) CXXRecordType(CXXRecord); 11574b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 11581e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1159566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1160566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1161f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1162f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) RecordType(Record); 1163566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek } 1164566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1165566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1166566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1167f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff else 1168f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) EnumType(Enum); 11694b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 117049aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 11712ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 117249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 11734b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 117449aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 11752ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 11762ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1182f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 1183f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new(*this,8) TypedefType(Type::TypeName, Decl, Canonical); 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 118872c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor/// getTemplateTypeParmType - Return the unique reference to the type 118972c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor/// for the specified template type parameter declaration. 119072c3f314d92d65c050ee1c07b7753623c044d6c7Douglas GregorQualType ASTContext::getTemplateTypeParmType(TemplateTypeParmDecl *Decl) { 119172c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor if (!Decl->TypeForDecl) { 1192f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new (*this,8) TemplateTypeParmType(Decl); 119372c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor Types.push_back(Decl->TypeForDecl); 119472c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor } 119572c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor return QualType(Decl->TypeForDecl, 0); 119672c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor} 119772c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 1198a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 11993536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 1200a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCInterfaceType(ObjCInterfaceDecl *Decl) { 12013536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 12023536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1203f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new(*this,8) ObjCInterfaceType(Type::ObjCInterface, Decl); 12043536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 12053536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 12063536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 12073536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 120888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 120988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 121088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 121188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 12122e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 121388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 121488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 121588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 121688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 121788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 121888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 121988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 122088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 122188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 122288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 122388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 122488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 122588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 122688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 122788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1228065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1229065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1230a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1231a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 123288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 123388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 123488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 12354b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1236b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 12374b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 12384b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1239a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1240a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12414b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 12424b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 12434b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1244a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1245f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 1246566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek 12474b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1248a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 12494b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 12504b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 12514b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 125288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 125388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 125462f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 1255c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 125688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 125788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 125888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1259c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 1260a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 1261c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1262c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 1263a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 126462f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 1265c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 1266c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1267c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 1268566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ObjCQualifiedIdType *QType = 1269f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedIdType(Protocols, NumProtocols); 1270c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 1271a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 1272c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 1273c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 1274c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 12759752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfExpr - Unlike many "get<Type>" functions, we can't unique 12769752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfExpr AST's (since expression's are never shared). For example, 12779752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 12789752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 12799752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 12808d1a3b8ca1e5fcc4567b5a6f51d82be2e460de1cSteve NaroffQualType ASTContext::getTypeOfExpr(Expr *tofExpr) { 1281f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 1282f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfExpr *toe = new (*this,8) TypeOfExpr(tofExpr, Canonical); 12839752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 12849752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1285d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1286d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 12879752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 12889752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 12899752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 12909752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 12919752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1292d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1293f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 1294f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfType *tot = new (*this,8) TypeOfType(tofType, Canonical); 12959752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 12969752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1297d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1298d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 12995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 13005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 13015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1302d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 13032ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 13045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 13075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 13095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1310b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 13115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 131355f4b02bc71e7347986c6a5249bef635aac1901aArgyrios Kyrtzidis/// getWCharType - Return the unique type for "wchar_t" (C99 7.17), the 1314fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// width of characters in wide strings, The value is target dependent and 1315fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// needs to agree with the definition in <stddef.h>. 131655f4b02bc71e7347986c6a5249bef635aac1901aArgyrios KyrtzidisQualType ASTContext::getWCharType() const { 131764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (LangOpts.CPlusPlus) 131864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 131964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1320b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor // FIXME: In C, shouldn't WCharTy just be a typedef of the target's 1321b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor // wide-character type? 1322b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getWCharType()); 1323fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman} 1324fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman 132564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 132664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 132764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 132864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 132964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 133064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 133164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 133264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 133364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 133464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 133564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 133664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 133764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 133864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 13398b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 13408b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 13418b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1342b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 13438b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 13448b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1345e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1346e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1347e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1348e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 134977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 135077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 135177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 135277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 135377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 135477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 135577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 135677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1357c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1358c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1359c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1360c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1361c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1362c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1363c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1364c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1365c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1366c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1367c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1368c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1369c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1370c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1371c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1372c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1373c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1374c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1375c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1376c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1377c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1378c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1379c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1380898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 1381898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return getDependentSizedArrayType(NewEltTy, DSAT->getSizeExpr(), 1382898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1383898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier()); 1384898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1385c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1386c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1387c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1388c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1389c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1390c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1391c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1392c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1393c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1394c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1395c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1396c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1397c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1398c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1399c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1400c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1401c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1402c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1403c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Make sure to look through type qualifiers (like ASQuals) for the negative 1404c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1405c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1406c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1407c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1408c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1409c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1410c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1411c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1412c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1413c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1414c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1415c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1416c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1417c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1418c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1419c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1420c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Rip through ASQualType's and typedefs to get to a concrete type. 1421c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1422c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ASQualType *ASQT = dyn_cast<ASQualType>(Ty)) { 1423c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner AddrSpace = ASQT->getAddressSpace(); 1424c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = ASQT->getBaseType(); 1425c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1426c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1427c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1428c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1429c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1430c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1431c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1432c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1433c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1434c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1435c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1436c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1437c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1438c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1439c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1440c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1441c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1442c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1443c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1444c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1445c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getASQualType(NewEltTy, AddrSpace); 1446c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1447c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1448c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1449c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1450c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1451c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1452c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1453c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1454c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1455c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1456898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1457898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 1458898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 1459898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 1460898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 1461898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 1462898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1463898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier())); 1464c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1465c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1466c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1467c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1468c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 146977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 147077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 147177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1472e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1473e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1474e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1475e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1476e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1477e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1478e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1479c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1480c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1481c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1482c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1483c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1484c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1485e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1486c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1487e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1488e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1489c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1490e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1491e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1492d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel DunbarQualType ASTContext::getBaseElementType(const VariableArrayType *VAT) { 14936183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson QualType ElemTy = VAT->getElementType(); 14946183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 14956183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson if (const VariableArrayType *VAT = getAsVariableArrayType(ElemTy)) 14966183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return getBaseElementType(VAT); 14976183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 14986183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 14996183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 15006183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 15015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 15025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1503a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1504ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 15055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1506a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1507d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel Dunbar assert(T->getAsBuiltinType() && "getFloatingRank(): not a floating type"); 1508ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1509a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 15105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 15115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 15125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 15135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1516716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1517716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1518716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1519716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 15201361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 15211361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 15221361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 15231361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 15241361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1525716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1526f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1527f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1528f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1529f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1530f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 15311361b11066239ea15764a2a844405352d87296b3Chris Lattner 15321361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 15331361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 15341361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 15351361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 15361361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 15371361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 15385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15417cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 15427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 15437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 15447cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1545a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1546a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1547a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1548a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1549a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1550fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1551a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1552fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1553fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 15545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1556f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1557f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1558f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1559f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattnerstatic unsigned getIntegerRank(Type *T) { 1560f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1561f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (isa<EnumType>(T)) 1562f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner return 4; 1563f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 1564f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 15657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 15667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 15677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 15687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 15697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 15707cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 15717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 15727cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 2; 15737cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 15747cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 15757cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 3; 15767cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 15777cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 15787cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 4; 15797cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 15807cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 15817cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 5; 15827cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 15837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 15847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 6; 1585f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1586f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1587f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 15887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 15897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 15907cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 15917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1592f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1593f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 15947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 15955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1596f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1597f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 15985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 16007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 16015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 16037cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 16047cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 16057cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 16067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 16077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 16087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 16097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 16107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 16117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 16127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 16137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 16147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 16157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 16167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 16177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 16187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 16197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 16207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 16217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 16225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 16247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 16257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 16267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 16275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 162871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 162971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 163071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 163171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 16326c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 163339ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1634df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 1635f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 163671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 163771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 163871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 1639f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 1640f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 164171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 1642f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 164371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 1644f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 164571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 164644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 164744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 164844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 164944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 165044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 16514afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 1652482b77d1cb4ca08391d1f749436f092a4cc24427Douglas Gregor CFConstantStringTypeDecl->addDecl(Field); 165344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 165444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 165544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 165671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 165771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 165871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 16598467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 1660b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1661bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 1662bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 1663bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 166444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 166544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 166644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 166744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 1668bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 1669bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 1670bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 1671bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 1672bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 1673bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 1674bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 1675bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 167644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 167744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 167844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 167944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 168044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 16814afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 1682482b77d1cb4ca08391d1f749436f092a4cc24427Douglas Gregor ObjCFastEnumerationStateTypeDecl->addDecl(Field); 168344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 1684bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 168544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 1686bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 1687bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1688bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 1689bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 1690bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1691e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 1692e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 16932d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 1694e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 1695bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 1696bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 169785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 169885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 169985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 170085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1701a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 170233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 1703a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 170498be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 170533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 170633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 170733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 170898be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 170933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 171033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 171198be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 171298be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 171333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 171433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1715a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 171633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 1717c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 1718e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1719c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1720ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 1721a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 172233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 17230d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 172433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 172533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 172633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 172733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 172898be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 172933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 173033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 173133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 173233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int NumOfParams = Decl->getNumParams(); 173333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 173433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1735a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek int sz = getObjCEncodingTypeSize (PType); 1736a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 173733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 173833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 173933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 174033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 174133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 174233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 174333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 174433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 174533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 17464306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian ParmVarDecl *PVDecl = Decl->getParamDecl(i); 17474306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian QualType PType = PVDecl->getOriginalType(); 17484306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 17494306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) 17504306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian // Use array's original type only if it has known number of 17514306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian // elements. 17524306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (!dyn_cast<ConstantArrayType>(AT)) 17534306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian PType = PVDecl->getType(); 1754ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 175533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 17564306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 17570d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 175833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 1759a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 176033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 176133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 176233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1763c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 176483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 1765c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 1766c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 176783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// Property attributes are stored as a comma-delimited C string. The simple 176883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// attributes readonly and bycopy are encoded as single characters. The 176983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// parametrized attributes, getter=name, setter=name, and ivar=name, are 177083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// encoded as single characters, followed by an identifier. Property types 177183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// are also encoded as a parametrized attribute. The characters used to encode 177283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 177383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 177483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 177583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 177683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 177783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 177883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 177983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 178083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 178183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 178283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 178383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 178483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 178583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 178683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 178783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 1788c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 1789c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 1790e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1791c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 1792c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 1793c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 1794c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1795c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 1796c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 1797c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 1798c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 1799c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1800c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = CID->propimpl_begin(), e = CID->propimpl_end(); i != e; ++i) { 1801c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1802c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1803c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1804c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1805c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1806c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1807c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1808c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1809c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1810c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 181161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 1812c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1813c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = OID->propimpl_begin(), e = OID->propimpl_end(); i != e; ++i) { 1814c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1815c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1816c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1817c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1818c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1819c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1820c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1821c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1822c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1823c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1824c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1825c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1826c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1827c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 1828c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1829c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 1830090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 1831090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 1832090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(PD->getType(), S, true, true, NULL, 1833090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 1834090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 1835c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1836c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 1837c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 1838c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1839c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 1840c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 1841c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 1842c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 1843c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1844c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1845c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1846c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 1847c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 1848c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 1849c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 1850c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1851090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 1852090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 1853090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian 1854c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 1855c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 1856077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 1857c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1858c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1859c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 1860c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 1861077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 1862c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1863c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1864c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 1865c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 1866c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 186739f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 1868c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1869c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1870c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 1871c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 1872c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1873a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 1874a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// Another legacy compatibility encoding: 32-bit longs are encoded as 1875a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'l' or 'L', but not always. For typedefs, we need to use 1876a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 1877a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 1878a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 1879a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(PointeeTy.getTypePtr())) { 1880a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (const BuiltinType *BT = PointeeTy->getAsBuiltinType()) { 1881a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (BT->getKind() == BuiltinType::ULong) 1882a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 1883a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian else if (BT->getKind() == BuiltinType::Long) 1884a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 1885a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1886a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1887a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 1888a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 18897d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 189043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FieldDecl *Field) const { 189182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 189282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 189382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 189482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 18955b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian getObjCEncodingForTypeImpl(T, S, true, true, Field, 18965b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 189782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 189882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 18998b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanianstatic void EncodeBitField(const ASTContext *Context, std::string& S, 19008b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian FieldDecl *FD) { 19018b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 19028b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 19038b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 19048b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian unsigned N = E->getIntegerConstantExprValue(*Ctx).getZExtValue(); 19058b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 19068b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 19078b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 19088b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 190982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 191082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 191182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 19125b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian FieldDecl *FD, 1913090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 1914090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool EncodingProperty) const { 1915e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 191643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD && FD->isBitField()) { 19178b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 191885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 191943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else { 192043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian char encoding; 192143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian switch (BT->getKind()) { 192243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian default: assert(0 && "Unhandled builtin type kind"); 192343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Void: encoding = 'v'; break; 192443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Bool: encoding = 'B'; break; 192543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_U: 192643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UChar: encoding = 'C'; break; 192743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UShort: encoding = 'S'; break; 192843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UInt: encoding = 'I'; break; 192943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::ULong: encoding = 'L'; break; 193043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::ULongLong: encoding = 'Q'; break; 193143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_S: 193243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::SChar: encoding = 'c'; break; 193343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Short: encoding = 's'; break; 193443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Int: encoding = 'i'; break; 193543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Long: encoding = 'l'; break; 193643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongLong: encoding = 'q'; break; 193743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Float: encoding = 'f'; break; 193843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Double: encoding = 'd'; break; 193943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongDouble: encoding = 'd'; break; 194043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 194185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 194243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += encoding; 194343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 1944c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1945a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (T->isObjCQualifiedIdType()) { 1946090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(getObjCIdType(), S, 1947090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandPointedToStructures, 1948090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandStructures, FD); 1949090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 1950090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Note that we do extended encoding of protocol qualifer list 1951090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Only when doing ivar or property encoding. 1952090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian const ObjCQualifiedIdType *QIDT = T->getAsObjCQualifiedIdType(); 1953090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 1954090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian for (unsigned i =0; i < QIDT->getNumProtocols(); i++) { 1955090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCProtocolDecl *Proto = QIDT->getProtocols(i); 1956090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 1957090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += Proto->getNameAsString(); 1958090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 1959090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 1960090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 1961090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 1962090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian return; 1963c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1964c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 196585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 1966a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 1967a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 1968a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 1969a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 1970a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Also, do not emit the 'r' for anything but the outermost type! 1971a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(T.getTypePtr())) { 1972a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 1973a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 1974a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 1975a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1976a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1977a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian else if (OutermostType) { 1978a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 1979a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian while (P->getAsPointerType()) 1980a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian P = P->getAsPointerType()->getPointeeType(); 1981a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 1982a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 1983a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 1984a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1985a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1986a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 1987a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 1988a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 1989a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 1990a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 1991a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 1992a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 1993a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 1994a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 1995a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1996a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1997c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian if (isObjCIdType(PointeeTy)) { 1998c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 1999c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 2000c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian } 2001c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian else if (PointeeTy->isObjCInterfaceType()) { 20023e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian if (dyn_cast<TypedefType>(PointeeTy.getTypePtr())) { 20033e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // Another historical/compatibility reason. 20043e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // We encode the underlying type which comes out as 20053e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // {...}; 20063e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian S += '^'; 20073e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 20083e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian false, ExpandPointedToStructures, 20093e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian NULL); 20103e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian return; 20113e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian } 2012c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian S += '@'; 2013090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 2014090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian const ObjCInterfaceType *OIT = PointeeTy->getAsObjCInterfaceType(); 2015090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCInterfaceDecl *OI = OIT->getDecl(); 2016adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2017adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += OI->getNameAsCString(); 2018090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian for (unsigned i =0; i < OIT->getNumProtocols(); i++) { 2019090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCProtocolDecl *Proto = OIT->getProtocol(i); 2020090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2021090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += Proto->getNameAsString(); 2022090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2023090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2024adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2025adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian } 2026c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian return; 2027a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCClassType(PointeeTy)) { 20288baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 20298baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2030a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 20318baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 20328baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2033c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 203485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 203585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 203685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 203785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 2038e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 203985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 204085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 204185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 204285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 204385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 204485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 2045a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 2046a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 2047a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 2048d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar false, ExpandPointedToStructures, 204943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 2050c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 2051c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 2052c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 205385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '['; 205485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 205585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 205685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 205785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson else 205885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson assert(0 && "Unhandled array type!"); 205985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 206082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar getObjCEncodingForTypeImpl(AT->getElementType(), S, 206143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian false, ExpandStructures, FD); 206285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += ']'; 2063c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 2064c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 20656de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 206682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 2067d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 2068502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 2069502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 2070502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 2071502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 2072502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 2073502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 20740d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 20757d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 207644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (RecordDecl::field_iterator Field = RDecl->field_begin(), 207744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldEnd = RDecl->field_end(); 207844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 207943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 2080d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 208144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 2082d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 2083d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 2084d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 2085d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 208643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 208743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 208843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 2089d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 2090a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 2091a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 2092a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(qt, S, false, true, 209343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 2094d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 20957d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 20966de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 2097d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 20985e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 20998b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 21008b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 21018b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 21028b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 2103485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 210421a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 210543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } else if (T->isObjCInterfaceType()) { 210643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 210743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 210843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 210943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 211043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 211143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 211243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian std::vector<FieldDecl*> RecFields; 211343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 211443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian for (unsigned int i = 0; i != RecFields.size(); i++) { 211543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 211643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 211743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 211843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 211943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 212043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 212143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 212243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 212343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 212443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 2125f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 212685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 212785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2128a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 2129ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 2130ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 2131ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 2132ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 2133ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 2134ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 2135ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 2136ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 2137ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 2138ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 2139ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 2140ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 2141ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 2142ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 2143ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 2144b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 2145b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 2146b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 2147b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2148b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 2149b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 2150b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2151a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCIdType(TypedefDecl *TD) 21527e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 2153a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = getTypedefType(TD); 21547e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 21557e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 21567e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2157c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2158c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2159c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 21607e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2161c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2162c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2163c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 21647e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 21657e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 21667e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 2167a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCSelType(TypedefDecl *TD) 2168b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 2169a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCSelType = getTypedefType(TD); 2170b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2171b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 2172b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2173c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2174c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2175b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2176c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2177c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2178b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 2179b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 2180b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2181a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 2182390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 2183a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 2184390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 2185390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 2186a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCClassType(TypedefDecl *TD) 21878baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 2188a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = getTypedefType(TD); 21898baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 21908baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 21918baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 21928baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 21938baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 21948baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 21958baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 21968baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 21978baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 2198a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 2199a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 22002198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 22012198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 2202a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 22032198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 22042198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 2205b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 2206d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 2207d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 2208d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 2209b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 2210b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 2211b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 2212b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 2213b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 2214b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 2215b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 2216b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 2217b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 2218b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 2219b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 2220b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 2221b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 2222b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 2223b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 2224b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2225b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2226b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 2227b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2228b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2229fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 2230fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 2231fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 2232fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 2233fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 2234fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 2235fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 2236fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TD->getAttr<ObjCNSObjectAttr>()) 2237fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2238fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 2239fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return false; 2240fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 2241fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2242b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 2243b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 2244b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 2245b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 2246b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 2247b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty->isObjCQualifiedIdType()) 2248b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2249b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 22506ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // Blocks are objects. 22516ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff if (Ty->isBlockPointerType()) 22526ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff return true; 22536ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff 22546ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // All other object types are pointers. 2255b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (!Ty->isPointerType()) 2256b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 2257b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2258b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // Check to see if this is 'id' or 'Class', both of which are typedefs for 2259b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // pointer types. This looks for the typedef specifically, not for the 2260b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // underlying type. 2261b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty == getObjCIdType() || Ty == getObjCClassType()) 2262b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2263b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2264b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 2265fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Ty->getAsPointerType()->getPointeeType()->isObjCInterfaceType()) 2266fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2267fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2268fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian // If is has NSObject attribute, OK as well. 2269fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return isObjCNSObjectType(Ty); 2270b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 2271b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 22726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 22736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 22746ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 2275770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 22761c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff/// typesAreBlockCompatible - This routine is called when comparing two 2277dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// block types. Types must be strictly compatible here. For example, 2278dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// C unfortunately doesn't produce an error for the following: 2279dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2280dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*emptyArgFunc)(); 2281dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*intArgList)(int) = emptyArgFunc; 2282dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2283dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// For blocks, we will produce an error for the following (similar to C++): 2284dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2285dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^emptyArgBlock)(); 2286dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^intArgBlock)(int) = emptyArgBlock; 2287dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2288dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// FIXME: When the dust settles on this integration, fold this into mergeTypes. 2289dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 22901c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroffbool ASTContext::typesAreBlockCompatible(QualType lhs, QualType rhs) { 2291c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *lbase = lhs->getAsFunctionType(); 2292c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *rbase = rhs->getAsFunctionType(); 2293c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 2294c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 2295c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (lproto && rproto) 2296c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return !mergeTypes(lhs, rhs).isNull(); 2297c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return false; 22981c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff} 22991c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff 23006ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 23016ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 23026ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 23036ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 23046ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 23056ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 230661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 23076ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 23086ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 23106ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 23116ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 23126ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 23133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 23143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 23156ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 23166ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 23176ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 23186ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 23196ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23206ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 23216ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 23226ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 23236ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 23246ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23256ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 23266ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 23276ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 23286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 23296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23306ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 23316ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 23326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 23336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(); 23346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPE = LHSP->qual_end(); 23356ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(); 23366ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPE = RHSP->qual_end(); 23376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // All protocols in LHS must have a presence in RHS. Since the protocol lists 23396ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // are both sorted alphabetically and have no duplicates, we can scan RHS and 23406ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // LHS in a single parallel scan until we run out of elements in LHS. 23416ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHSPI != LHSPE && "Empty LHS protocol list?"); 23426ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *LHSProto = *LHSPI; 23436ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23446ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner while (RHSPI != RHSPE) { 23456ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *RHSProto = *RHSPI++; 23466ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If the RHS has a protocol that the LHS doesn't, ignore it. 23476ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (RHSProto != LHSProto) 23486ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner continue; 23496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Otherwise, the RHS does have this element. 23516ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ++LHSPI; 23526ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (LHSPI == LHSPE) 23536ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // All protocols in LHS exist in RHS. 23546ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner LHSProto = *LHSPI; 23566ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner } 23576ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23586ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If we got here, we didn't find one of the LHS's protocols in the RHS list. 23596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 23606ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 23616ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 2362ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 2363ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 2364ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 2365ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 23663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 23673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 23683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 23693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 23703d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 23713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 23723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 23733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 23743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 23753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 23763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 23773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 23783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 23793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 23803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 238161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 238261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 238361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 238461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 23853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 23863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 23873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 23883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 23893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 23903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 23913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 23923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 23933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 23943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 23953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 23963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 23973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 23987fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 23997fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 24007fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 24013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 24023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 24033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 24043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 24053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 24063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 24073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 24083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 240961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 241061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 241161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 241261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 24133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 24143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 24153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 24163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 24177fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 24183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 24193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 24213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 24223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *proto = lproto ? lproto : rproto; 24243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 24253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 24263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 24273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 24283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 24293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 24303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 24313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 24323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 24333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 24343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 24353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 24363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 24373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 24383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 24403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 24413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 24427fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 24437fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 24443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 24453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 24473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 24483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionTypeNoProto(retType); 24493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 24503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24513d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 245243d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 245343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 245443d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 245543d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // expression is an lvalue. 24563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 24573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 24583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 2459c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 24603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 2461c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 24623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 24643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 24653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 2466f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 24673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 24683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 24693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 24713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers() || 24723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman LHSCan.getAddressSpace() != RHSCan.getAddressSpace()) 24733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 24743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 24763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 2477f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 24781adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 24791adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 24801adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 24811adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 24824c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 24834c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 2484a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 2485a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 2486a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 2487a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 2488a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 2489213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 2490213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 2491213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 2492ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 2493b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 2494b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 2495b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 24963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24974e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 24984e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 2499bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // ID is compatible with all qualified id types. 2500bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (LHS->isObjCQualifiedIdType()) { 2501bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) { 2502bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2503bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (isObjCIdType(pType)) 2504bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2505bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2506bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2507bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2508bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2509bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2510bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2511bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2512bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2513bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (RHS->isObjCQualifiedIdType()) { 2514bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) { 2515bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2516bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (isObjCIdType(pType)) 2517bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2518bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2519bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2520bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2521bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2522bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2523bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2524bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2525bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 25261adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 25271adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 25283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 25293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 25303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 2531bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 25323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 25333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 25343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 2535bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 25361adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 25373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2538ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 25393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 25404a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 25411adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 25421adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 25433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 25443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 25453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 25463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 25473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 25483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 254961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 255061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 255161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 255261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 25533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 25543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 2555c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 2556c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 2557c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 2558c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 2559c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 2560c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 2561c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 2562c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 2563c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 2564c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 2565c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 2566c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 2567c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 25681adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 25693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 25703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 25713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 25723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 25733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 25743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 25753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 25763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 25773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 25783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 257961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 258061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 258161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 258261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 25833bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 25843bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 25853bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 25863bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 25873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 25883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 258961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 259061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 259161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 259261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 25933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 25943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 25953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 25963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 25973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 25983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 25993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 26003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 26013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 26023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 26033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 26043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 26053bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 26063bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 260761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(),0); 26083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 26091adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 26103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 26113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman case Type::Tagged: 26123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 26133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCIdType(LHS) && isObjCClassType(RHS)) return LHS; 26143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCClassType(LHS) && isObjCIdType(RHS)) return LHS; 26153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 26161adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 26173cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 26183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 261964cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 262064cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 262164cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 26223cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 26233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 26243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 262561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 26261adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ObjCInterface: 26273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Distinct ObjC interfaces are not compatible; see canAssignObjCInterfaces 26283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // for checking assignment/comparison safety 26293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2630bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff case Type::ObjCQualifiedId: 2631bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Distinct qualified id's are not compatible. 2632bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 26331adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner default: 26341adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner assert(0 && "unexpected type"); 26353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2636ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 2637ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 26387192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 26395426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 2640ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 2641ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 264288054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 2643ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 2644ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 2645ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 2646ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman // At the moment, only bool has padding bits 2647ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 2648ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2649ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2650ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 2651ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 2652ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 2653ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 2654ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 2655ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 2656ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 2657ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 2658ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 2659ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 2660ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 2661ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 2662ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 2663ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 2664ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 2665ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 2666ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 2667ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 2668ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 2669ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 2670ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 2671ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 2672ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2673ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2674ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2675ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 26765426bf6456a5aeac416a9150de157904d101c819Chris Lattner// Serialization Support 26775426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 26785426bf6456a5aeac416a9150de157904d101c819Chris Lattner 26797192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek/// Emit - Serialize an ASTContext object to Bitcode. 26807192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenekvoid ASTContext::Emit(llvm::Serializer& S) const { 2681e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek S.Emit(LangOpts); 26825451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(SourceMgr); 26835451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Target); 26845451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Idents); 26855451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Selectors); 26867192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 2687fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // Emit the size of the type vector so that we can reserve that size 2688fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // when we reconstitute the ASTContext object. 2689a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek S.EmitInt(Types.size()); 2690a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 269103ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (std::vector<Type*>::const_iterator I=Types.begin(), E=Types.end(); 269203ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek I!=E;++I) 269303ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek (*I)->Emit(S); 2694a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 2695ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis S.EmitOwnedPtr(TUDecl); 2696ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2697a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl); 26987192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek} 26997192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 27000f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted KremenekASTContext* ASTContext::Create(llvm::Deserializer& D) { 2701e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2702e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek // Read the language options. 2703e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LangOptions LOpts; 2704e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LOpts.Read(D); 2705e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2706fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SourceManager &SM = D.ReadRef<SourceManager>(); 2707fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek TargetInfo &t = D.ReadRef<TargetInfo>(); 2708fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek IdentifierTable &idents = D.ReadRef<IdentifierTable>(); 2709fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels = D.ReadRef<SelectorTable>(); 27100ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2711fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek unsigned size_reserve = D.ReadInt(); 2712fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 27132e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor ASTContext* A = new ASTContext(LOpts, SM, t, idents, sels, 27142e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor size_reserve); 2715fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 271603ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (unsigned i = 0; i < size_reserve; ++i) 271703ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek Type::Create(*A,i,D); 27180ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2719ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis A->TUDecl = cast<TranslationUnitDecl>(D.ReadOwnedPtr<Decl>(*A)); 2720ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2721a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: A->CFConstantStringTypeDecl = D.ReadOwnedPtr<RecordDecl>(); 2722fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 2723fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek return A; 2724fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek} 2725